Berkeley Parents Network: Drainage & Waterproofing

Berkeley Parents Network

Drainage & Waterproofing

Please note: this page contains reviews and opinions sent in by Berkeley Parents Net subscribers. Your own experience may be different. Please always check references before hiring!

Berkeley Parents Network > Reviews > House & Garden > Drainage & Waterproofing

Questions

Wet soil causing floors to buckle
Water seeping into our house
French Drains
Waterproofing
Downspouts & drainage
Water coming into basement from foundation
Expert advice needed about drainage problem
Drainage expert for swampy backyard
Sump pump and drain maintenance
More Recommendations for Drainage contractors
Water Seepage into House
Standing Water on cement walkway
Erosion from hillside stream

Related Pages

Wet soil causing floors to buckle

Feb 2006

I am having problems with wet soil under my house causing my wood floors to buckle. I had a soil engineer come out and draw up plans for some drainage. Everyone who has come out to give bids on the drainage has given different opinions: you don't need drainage, just adjust your sprinkler system; you need $15,000 worth of drainage; you don't need drainage, you need more ventilation; you need a cement slab or vapor cover under your house.... Does anyone have a recommendation for someone who will really help to analyze the problem? I thought I had a pretty straightforward issue, but am now totally confused about the best way to solve the problem! Thanks. Confused

This is the reply from my husband Mark, a drainage contractor...

There are always a variety of approaches to every drainage issue, and the most expensive isn't always the best value.

From what you describ, runoff from your irrigation system may be the entire problem. If it weren't for the damage to your floors, I'd urge you to cut back on your watering, install some venting and monitor the situation over several months. If this solves the problem then you just saved thousands of dollars.

However, the fact that your floors are buckling, not only suggests that the amount of water under your home is excessive, but adds a new level of urgency to your problem. Even if taking the steps above seemed to solve the problem, you are still very vulnerable to heavy rainfall and the possibility of runoff from adjacent properties. These events beyond your control put your home at risk for continued damage.

That said it is probably worth your while to install some sort of system to collect water and direct it away from your home. There are many alternatives to expensive exterior "French Drain" perimeter systems, including interior options like strip drains and sump pumps. Not having seen your property it is impossible to suggest what might work best for you.

Finally a vapor barrrier is a good idea if installed in conjuction with a well-designed drainage system. Mark would not recommend putting one in until you are confident you a have a solution as it could mask a problem that could lead to damage to your foundation.

It sounds like you have more professional opinions than you need, but if you'd like another, Mark is always happy to come out and take a look. Mark Wijsen, MW Construction 510-527-0705 Susannah

Water seeping into our house

January 2006

We have had water seepage into our home from under a window. This is not a drainage problem, and there are no visible cracks from outside the house. We are looking for someone who can help us with this problem, which is too small for big companies. Thanks in advance for feedback and referrals. ceniza

We had a huge drainage problem with water under our house many months of the year. We live at the bottom of a hill in Oakland and a lot of water came into our yard, mostly underground water. I can recommend Jose Curiel for any drainage problems. He and his crew put in a drainage systen behind a wall that goes under a hot tub and drains water to both side of our yard. He connected the drainage system with our roof gutters, a drain he put in through a storage room, a sump pump, a drain he installed at the bottom of a pathway, and a drainage system he put in our soggy lawn. I am happy to say our house is drying out even though the sump pump is working much less frequently. Our soggy lawn is also becoming less swamp-like too. All of this water goes to the street and is no longer damaging the foundation of our house. Jose is not licensed and charges by the day. He and his crew work very hard and are on the job every day before 7:30 am. He can solve difficult problems! and has many years of experience. His number is 510-821-4270. Feel free to contact me. Judy

French Drains

April 2007

Hello, we are going to do backyard demo (asphalt and old garage) and then put in french drains and a yard. The first thing we need is a demo guy with insurance, b/c the garage is up against our neighbors garage. Ideally, the demo person could also do the drains and maybe even the fences, etc. Thanks for your suggestions, lruss

Hi - we used Lance Capilla of Alameda Engineering for our french drains. He is prompt about returning calls and gives a good estimate of his work. While he is not inexpensive, he is licensed and I trust his work. Anon

July 2004

We are in need of some foundation work and a french drain. I saw some old posts and would like some updated recommendations/contact information for contractors/engineers, specifically from those who have had similar work done AND have noticed a dry basement after a year or two of rain. Also, does anyone suggest whether or not to hire a soil engineer BEFORE we get bids from contractors, or will the contractors suffice? When we bought our house, the termite inspection done by RJ Clark said that we needed a whole new foundation. But then the inspector we hired said that only certain sections needed to be done. After living in the place for one year, the lower level(laundry room) leaks with heavy rain due to a sloping lot.

We had a french drain installed in 2000. When we bought the house their was a sump pump in the basement and water would come under the foundation to our sump pump. Ever since the french drain was installed, our basement has been completely dry and we do not need to use the sump pump in the basement anymore. Greg Carsorso of Carsorso Construction was the contractor. We initially met him at a drainage seminar at Truitt and White. He stayed within his estimated time frame and budget for completing the job. He had excellent references. In fact, he is about to start our large basement remodel project in about a week. His phone number is: (510) 883-0844. Wendy

Hi, just wanted to recommend Ward Construction to you. We had them come and do a french drain drainage system for us when we moved into a new house and knew there was seepage into the basement which we wanted to be able to use in the winter. They did their work on time (actually finished early), on budget (was the mid-range of the bids we got), and best of all we have had no drainage problems for the last two years since the work was done. Hope your work goes well. Luisa

We were having trouble with moisture coming into our basement. We had an engineer come by and design an elaborate and expensive project for us. We called Glen Larsen because a neighbor had used him, and he came up and he came up and helped me trouble-shoot different ways to address the problem. He come up with a simpler solution then the engineer, and our basement has been dry for the past three years--at a fraction of the cost! His number is 510-232-9122 Warren

An excellent drainage contractor is Steve Sanchez of All Seasons Construction 510-685-0046. His company is located in Berkeley and he has excellent references. Steve is very professional and skilled. prem23

May 2004

Our neighbors have proposed this idea: they need to install a drainage system under their retaining wall and backyard, a french drain. We already have a french drain and they would like to know if they can hook their system up to ours? The theory being this would save expense and the excavation of a side yard we share. My husband is not opposed to this idea, but I am concerned about adding the extra burden off all their water runoff into our system. Any advice, experience appreciated. concerned neighbor

This is according to my husband the drainage contractor... In theory there are ways that you could tie in an existing drainage system. It would depend largely on the size and type of pipe you are accessing (Perforated? Closed?), the amount of volume your system is handling, and where the tie in would be located within your system. However even assuming you have the perfect combination of variables, he would highly discourage sharing a drainage system. It opens up huge questions of liability about who would be responsible if the system ever failed. You and your current neighbors may get along great, but you never know who could move in next to you someday. If you have any more questions feel free to email. Susannah

March 2003

Our house has a sump pump in the crawl space, and the water goes under the house into the crawl space. We talked to two drainage companies, and both of them suggested to have a french drainage installed except the price from one bid was doubled than the other bid. Why would the price differ by that much? Has anyone had french drainage installed lately? Any advice on the drainage companies to choose from and what to watch out for? Thank you so much.

I used Carty Construction a couple of years ago to put in French drains. It was very expensive but well worth it. My next door neighbor kept coming over and commenting on the quality of the work. He had had French drains put in a couple of months before us and he pointed out how Carty had dug deeper holes, used bigger drains, etc.

In understanding the differences in the two bids you received you might want to ask each for more specifics about what they would do. Where will they put in catch basins, how deep will they be, where will the water drain to (will they build underground drains out to the street, etc. Good luck. roxanne

My husband is a contractor who specializes in this type of work. Let me share some information...

If a french drain is not properly installed, it can wind up creating a worse situation than what you started with--all the water collected in the trenches seeps through your foundation. If do you decide to go with this sort of system you should ask the contractor whether he can guarantee that your problems will be solved, CHECK REFERENCES, and remember more expensive doesn't always equal better.

That said, though the cost of french drains suggests that they are some perfect solution to all drainage woes, in many cases there are more effective, less expensive approaches, especially with the type of moisture found in the East Bay. Ask your contractor about alternatives.

Hopefully all of this helps. If you want additional info, email or call my husband Mark. He can evalute your situation and make specific recommendations.

MW construction 510-527-1725 (Abundant references can be supplied upon request) Susannah

2001

I need to know where I can get reliable information about installing french drains around the foundation of my house. Specifically I am concerned about how they perform in an earthquake. I have gotten bids from four contractors and they give conflicting advice. Two of them say that they will dig down to the base of the foundation, then move a foot away from the foundation and dig down a foot further. They then install the perforated pipe at the bottom of the deepest part of the trench. One contractor digs a foot or two below the foundation without moving any distance away from it once they reach its bottom. Yet a fourth contractor only digs to the bottom of the foundation. Since the latter two have given me the lowest bids, I'm wondering if 1) the drain installed at the base of the foundation (i.e. by the guy who only digs down to the base) will be adequate to solve the basement flooding problem, and 2) if the drain installed by digging below the foundation without moving the trench to the side will destabilize my foundation in the event of an earthquake. The contractor claims that the gravel with which they backfill the trench is sufficient to hold the foundation in place, but I'm skeptical. I would appreciate any comments, and especially advice on where to find good information on this problem.

For reliable information about installing french drains, I would suggest that you contact Brockman Engineering Contractors (925)634-2899. They work with a geologist who is a soil and drainage expert. My understanding is that any general contractor may offer the service of installing a french drain - this does not mean that this contractor is an expert. We just purchased a home were there is a significant drainage issue. We had an engineer who did a thorough inspection under the house, inspected the foundation, the sump pump, the soil, the downspouts, etc. But they are not cheap.

Although not an expert, I doubt digging at the base of the foundation would work - this is what the previous contractor did that actually owned the house - there's gravel around the base of the house - and there's still water under the house! The engineer from Brockman Engineering proposed digging a trench around the house, but not at the foundation - away from the foundation. My understanding is that ideally, you want to move away or keep water from reaching the foundation in the first place. How is digging a trench at the foundation going to help? Again, I am not an expert - so I guess it's best to seek advice of the experts. I would be interested in what others have to say regarding the issue.

We are in the process of discussing this same topic with drainage specialists and landscape contractors and have been getting varied recommendations as well. Would love to talk with you Carl about what you find out or to just let you know what we've been told so far. Laurie

We just recently had a french drain installed. We went to a seminar at Truitt & White which was given by Greg Casorso. He does both seismic and drainage work. Although you do have to pay him $50.00 for an estimate, it seems well worth it. We also got bids from several other drainage contractors and similar to your situation, we were told various different methods. Although Greg was the most expensive bid, I feel that he really knows what he is doing. His references were excellent. It is worth having him come out and give his advice. Casorso Construction (510) 883-0844. Good luck! Wendy

Various home repair books explain French Drains and you may want to look at them so that you understand what they are all about (like the big one they always sell at Home Depot, etc). Foundation problems should always be looked at by an expert, though, because they put your house at considerable risk. My experience is also that different contractors will give you very different bids. Ned Clyde is very professional and has a good reputation, intermediate in price. We had to go to court over our problem and the legal experts feel this company has a first rate reputation. 925 698 5411.

When we bought our house, we knew we were going to have to do drainage work. One of the first things we did was attend a seminar offered by Truitt & White (Berkeley) -- well worth the investment of our time. Greg Casorso (sp?) was the speaker, and CLEARLY knew his business. We actually had him come to the house (I believe it cost $50, but this was about 3-4 years ago) and look at our specific situation. It was WELL worth the money, altho' in the end we had another contractor do the work (also, we did not do ALL of the work that Greg had recommended, figuring that we could do more, later, when our budget allowed). There are some very serious issues to consider, not the least of which is potentially undermining your foundation. Good luck with your research, and (ultimately) your project. Leslie

Waterproofing

Sept 2005

RE: Waterproofing Contractor To the person looking for a contractor to replace leaking front porch, including membrane and tile: we can highly recommend WHL Waterproofing ((925) 284-5306). Bill Lambert is the owner and the one with whom we dealt; he also was here working and closely supervising the project. We had a very similar situation--our front porch was leaking into a downstairs bedroom closet. Bill ripped out the existing tile (and 2 and 1/2 tons of concrete!), replaced the membrane and then replaced the tile again. He subs out the tile and stucco work (they had to replace the flashing at the bottom of our stucco walls), and we found the sub contractors to do an excellent job, as well. The project lasted about 4 weeks, about a week longer than it should have, due to weather (this was done this past spring). We found Bill to be easy to work with and very responsible--he and his crew did a great job. (well, I guess we won't know for sure until the rains this winter! but they did test it) Good luck. Tracy

Downspouts & drainage

April 2004

Hello, we have a house in Oakland that has had some funky add-ons without accompanying downspouts. We have other downspouts that pretty much dump water back toward the house thanks to some bricked-in flowerbeds. Also, the house is on a very slight slope and I need drainage help beyond downspouts -- french drains? -- to get water away from the house. Can anyone recommend an honest, dependable, not-overly-pricey person (contractor? gutter company?) to help us? I'm looking for someone who won't end up charging us twice as much as the last estimate, won't take twice as long as promised, won't have to skip town mid-project, etc. Thanks.

All Seasons Construction specializes in drainage issues. Call Steve Sanchez at 510-525-7123. He is an excellent, honest, and reasonable contractor. prem23

For foundation and drainage work, I highly recommend Mark Wijsen of MW Construction (510-527-1725.) He is fabulous to work with. He is prompt, courteous, and thoughtful in his work. His after-work customer service (i.e. phone calls, in-person visits to check on the work during heavy rains, etc.) went well beyond our expectations. His work was of high quality and he is very professional. We plan to use him in the future when we pave our driveway. Feel free to contact me with any follow-up. Jennifer

Water coming into basement from foundation

March 2004

I need some recommendations for a Drainage Contractor. I have water coming in my basement from the foundation. I have check out the old recommendations, but they are a few years old and I would really like to get some current ones. Thanks, Laura

I highly recommend Dave Olnes. We've used his services a couple of times - different houses - and he's always been excellent. And he won't cost an arm and a leg! Contact info is: Dave Olnes PE, Civil an Soil Engineer, 510.568.2162 All the best, Nigel

Editor note: Dave Olnes is not a contractor and he does not do construction work. Rather he is a consultant, a Civil and Soil Engineer who specializes in residential drainage and foundation problems. Therefore he can't give you a free estimate on drainage work! However he can provide consulting services for drainage problems.

Dear Laura, We would get standing water under our house every time it rained and even in the summer it was always damp. My husband and I got several estimates and decided to work with Paul Carty of Carty Construction (528-1565), Paul's estimate was in the middle and we felt like he knew just what to do. He and his workers were friendly, professional, neat and fast. Within a week our drainage problems were gone! Everything was done with permits and totally by the books. Paul is a very honest guy and very easy to work with. We highly recommend him! We were just sorry that we didn't have the work done sooner. Thanks to Paul, this rainy season was stress free for us and under our house stayed bone dry!! Best of Luck, Cindy and Jim

Expert advice needed about drainage problem

Nov 2003

Help! After reading all the advice regarding drainage under and around a house, and after having a number of recommended contractors do bids, I am more confused that ever! Some advise perimeter (french) drains, some advise under-slab drains (we are about to pour a slab and build living space in what is now a dirt-floor basement), etc. etc. Our land is basically level but floods in winter, and the slab will sit just above grade. Anyone have any experience with this? Romney

It is my opinion that if you think that you need drainage work that it is best to first get a professional consultation from a drainage expert who does not do the installation work themselves. This is because they have the full range of experience and expertise and are not there to sell you on hiring them for the project.

Any drainage work is expensive, and it can be even more expensive to redo if not done properly the first time. As a landscaper, I have seen a lot of poorly done drainage work that did not solve the problems that it was intended for.

I'd like to recommend my colleague Dan Szumski, a civil and structural engineer who has been specializing in residential drainage and foundation work in the Bay Area for about 20 years. He is very well versed in the soil structure and water patterns here and is able to recommend the most effective solution for problems. He can recommend experienced contractors to do the work and he can do project oversight. He can be reached at 510-829-0399.

It is worth the investment in a consultation to be sure that you get the work that you really need- no more, no less. Cecelia

Drainage expert for swampy backyard

Jan 2007

We've been living with a muddy, swampy backyard lawn (and subsequent flooding in our basement on rainy days) for 6 years now, and are ready to fix the problem...I found reviews from 4 years ago--anyone have recent experience with an honest, smart contractor who can fix this type of problem? Thanks heidi

I wanted to recommend Mark from MW construction (510-527- 1725). I got his name from BPN and he totally lived up to his reputation. We had a situation that sounds silmilar to yours; our back yard was always spongy and during the rainy months a lake would form for weeks, flooding our basement.

Mark not only fixed the swamp in the backyard, but his recommendation for putting a drain in the basement was much less expensive than the french drain other contractors had suggested. Everything works beautifully, and our basement stayed dry even during last year's super rains. I don't think you can go wrong the MW Construction. Good luck. claudia

March 2003

Our new home has a very 'swampy' back yard (we bought it in the summer when the problem wasn't evident). I'm not sure what kind of contractor deals with this. I would appreciate any recommendations from someone who has had a similar problem. Claudia

We have used the same contractor for not one but TWO swampy backyards in the last 4 years. He is very seasoned in determining grades, understanding where the water is coming from and how to divert it to the street or out of your way using piping and French drains, sump pumps, whatever is needed. He's been doing construction for 30 years and he seems to know what he's doing. On our first house we called in a civil engineer to confirm what the contractor said and I should've saved my time and money; the engineer said EXACTLY the same thing. The contractor is Cecil Pearson (510) 385-4253
saladfriend

Dan Szumski is a civil engineer who specializes in foundation, seismic and drainage inspections and reports for homeowners. He is down-to-earth, sensible, very knowledgeable, and thorough. He did a seismic inspection for me that clarified conflicting information that I had been given by several contractors. I know other people who have been very happy with his work and real estate people often refer him.

In my experience (live and learn), it is better to have the planning done by someone like Dan rather than by an installation contractor. It is a bit of extra cost up front, but it means that you are getting a complete evaluation by someone who does not have a stake in selling you the job. He can give you names of contractors who can do the installation of his recommendations. Dan's number is 839-0399. Cecelia

Hi Claudia My husband Mark is a licensed general contractor who specializes in drainage issues.

Our house also had a swampy yard that actually turned into a small pond during the winter and spring. He designed a system that completely dried things up. He also stopped the water from sheeting across the laundry room floor every time it rained.

I mentioned your problem to him, and he said the solution depends entirely on the source of moisture and the topography in the area. If you'd like he'd be happy to come out and make a recommendation based on your specific issues. Email or give him a call at 510-336-1725. Susannah

Sump pump and drain maintenance

March 2003

Our house has a sump pump and drainage system that was installed several years ago. We have spotted leaks and would like to have the entire system evaluated and repaired where necessary. We have reviewed prior postings on french drains and related topics; much of that advice appeared to be related to installing drainage systems, and we are more interested in maintenance. jiyun

In response to the post about the failing sump pump system, my husband is a licensed contractor who specializes in drainage systems. He would be happy to take a look at your situation and make recommendations.

In the meantime here are some tips for the future...

PUMP/DRAINLINE MAINTAINANCE: This is key for prolonging the life of an existing system. Debris in the lines/pump can lead to everything from leaks to pump failure. You should have the system maintained twice a year--at the start and end of the rainy season.

Depending on the type of system, there's a lot you can do yourself:
*Flush drainlines with a high powered hose
*Place pump in a 5 gallon bucket of clean water and let it cycle for 15 minutes give it a rest , then do it again
*Dig all the gunk out of the bottom of the sump well

Hopefully this is helpful. Again feel free to contact my husband Mark if you need additional information or want him to take a look at your system.

MW Construction 510-527-1725
Susannah

More Recommendations for Drainage contractors

September 2006

We couldn't have been more pleased with Mark from MW Construction (510-527-0705). We had three people come out to take a look at our basement which flooded any time there was more than a moderate amount of rain. Each person had something different to recommend. We finally called in an drainage consultant (Tom Anderberg - 510-482-2779 ), who said of the three approaches he'd do something most like Mark's design.

We were not only pleased with the result (our basement was dry during the most heavy rains last spring), but the service was exceptional as well. Mark and his workers were very professional, they cleaned up each day, and got the job done in less time than promised. Mark even called and came back after the first heavy rains to make sure everything was working. I can't recommend them more highly. Katrina

September 2006

After getting recommendations for Mark Wijsen (MW Construction) from this site, my husband and I called him to take a look at our drainage problems. He came over and was very friendly and helpful. He provided us with an estimate, which was significantly less than the other two contractors we had come out. We were going to hire him and asked him to come back out and walk us through the work he was planning to do. When he came back, he was a completely different person. When we asked him questions, he gave us short answers and acted like we were troubling him. I would not recommend him. I was surprised at the way he conducted his business. Mildred March 2006

I am posting a recommendation for the services of Manuel Garcia. Manuel helped us resolve a problem with water pooling around the foundation we replaced three years agao. We were so impressed with him. He changed the location of our sump pump after he pointed out that the water was actually pooling in a different area than where we had been advised to place it. He also installed French drains for us, even working in the rain (as he said, he ''wanted to see what the water was doing''!). Manuel speaks excellent English, and was wonderful to work with. He has a very strong work ethic and a lot of integrity-- he keeps checking back in with us to make sure things are going well. Despite a very rainy winter, we have had no further problems with water. I would not hesitate to hire him again for other work. Although I cannot speak for his other abilities, he also does carpentry and landscaping. You can reach Manuel at 652- 5612. Sarah

November 2004

Excellent Drainage Work
We had Comacho Landscaping do our French Drains, after a recommendation from a friend who used them. I was blown away by how inexpensive his bid was, but he did everything the more expensive companies said they'd do. His workers were friendly and finished the job early! They were also able to help out with a few other outdoor issues we wanted done. I highly recommend you give them a call. Ask for Ruben and tell him I sent you.415.845.8753
Richard

Feb 2003

For drainage, can anyone give feedback on these companies: Tom Morris, Art Ward Construction, Casorso Construction, DeMarcus Drainage company. Thank you so much

--We recently bought a house in the Kensington hills and had to have a drainage trench dug around the house to prevent the basement from repeated flooding. We got MANY bids, but of the three you mentioned I only know of Ward Construction-- but I know a lot of them because that is the bid we went with. It was a reasonable bid (not the highest or the lowest), and the company (Rick, their front man, and Art Ward as well) that we felt did the most listening and honest assessment of our problem. Their work crew started early and worked hard, and they finished days ahead of schedule. Ward Constr. is often pretty busy (we had to wait 2 months to get on their calendar for the actual work to begin) but worth the wait-- we have had no flooding since the trench and pipes were put in-- and we have had a lot of rain! good luck! Luisa

Water Seepage into House

Jan 2000

We live on a steep hill, and when it rains heavily (as it has been lately!), water is seeping into our family room, most likely from underground runoff. It's not a lot of water, it just makes one corner damp, but the room immediately smells heavily of mildew and is most unpleasant. Also I've read about black mold, which I understand can be hazardous to the health of babies, and we have a 7-month old. And I'm worried about any possible cumulative effects on the house. Does anyone know what can be done for something like this? Whom to call?

Proper drainage should be installed outside the house to lead this water away from your home. But since you may not be able to get that done quickly, a dehumidifier will provide some relief. Sears sells them online at www2.sears.com

Do you own your home? If so, you need to fix this problem!! Water damage is one of the worst types of damage- this will seriously effect the resale valus of your home. The smell suggests to me that this has been happening for a while, and is a problem that will get worse with neglect. The first thing you can do is call your home owners insurance, and have them come out and take a look. They may cover the water damage that you have in your walls. If they don't cover it, they may still be very helpful in suggesting solutions (ours were when we had a flood in our basement). If you actually can see water on your floor, you can be sure that the walls, insulation, etc behind the visable water are also wet, and probably damaged, molding (from the smell), and need to be replaced. Right now, you can at least remove the baseboard, wipe everything up with bleach, and put a fan in front of it until it drys real well (you may want the insurance people to see it first- or at least take pictures. Call them and ask). The cause of the problem sounds like inadequet drainage. I would have a drainage contactor out ASAP, while it is still wet, so they can asses the situation. We just used Art Ward Construction, and I really liked him.

Who ya' gonna call? Ghostbusters!

Actually, there are a few things to look at before calling anyone. First, make sure that water isn't running down and collecting against the outside wall, then seeping through, especially on the uphill side. Make sure your drains are draining as they are supposed to and that water isn't being dumped where it will flow in. You can channel it away from the dump point with green plastic "hose" that comes in rolls and lays flat--water will still migrate through it if the outlet is lower than the point it connects to the downspout, assuming it doesn't have to climb any hills. Make sure the ground outside the seepage point (and elsewhere around the foundation) is cleared away so that it doesn't make contact with the house any higher than the top of the foundation -- there really should be about 6" of vertical clearance below the mudsill (on top of the foundation) for termite and dry rot prevention.

If the problem is not fixed by these simple solutions, you are probably looking at some form of french drain: a gravel filled trench next to the foundation to capture groundwater and runoff and carry it away. Simple ones can be done by a homeowner willing to dig; complex ones can be big engineering jobs. If you want advice call a reputable civil engineer or architect: Christofferson and Graff looked at our drainage; Josh Kardon is a good civil engineer we've used as well. There are many others. You might also ask neigbors if they have had similar problems, and what they did/who they used.

A story: my neighbor across the street told me he used to get 3' (yes, feet) of water in his basement every time it rained hard. He put in a french drain and hasn't seen a drop in ten years.

Water seepage is a problem you should not leave unaddressed. I can't speak about mold. But I do know that water contacting wood can lead to dry rot, which undermines the structural integrity of the house and can be very expensive and invasive to fix. Your answer probably is drainage -- perhaps a french drain to divert water around the house. There are a lot of contractors out there who do drainage. We had a seepage problem -- brown sludgy water that filled our laundry room -- and used a guy named Tom Morris ((925) 254-9289) to build a french drain. He was a lot cheaper than others who bid on the work, and his references were very strong. We have been through three heavy-rain winters, and the place is dry as a bone.

We also live on a hill and have a seepage problem in our basement (an inlaw unit) when it rains heavily. I called Paul Carty of Carty Construction 510.528.1565. His specialty is drainage systems and foundation work. I have not yet received his estimate nor had the work done, so I can not attest to prices or workmanship, but it was a relief to have him come by and explain what could be done to relieve the pressure of the ground water seeping through our foundation. Good luck!

Dec 2001

Standing Water on cement walkway

I have a concrete sidewalk next to my house where 2-4 inches of standing water accumulates whenever it rains. Eric Burtt (recommended by this list) charges $250 just to come out to look at the problem and tell me how to solve it--it seems like he wants to do a complete inventory of my drainage system which I really don't need. Although I may wind up using him, I would like other alternatives as well. Any other current or recent expericnces with drainage and/or rebuilding a concrete walkway? The list on the web is a bit outdated. Thanks. Kathy

I think that you should consider calling up a few small job type concrete contractors and taking bids on having a thin new sidewalk poured over the top of the existing one. The new one would be formed at the proper elevations and pitch to shed water away from the house. There are methods and mix recipes that will accomplish this but whoever does it has to know what they are doing because your average concrete mix has to be 4 or more inches thick. I suggest this because for one, you will not have to break up and remove the existing sidewalk,and two, the contractor would have a minimum of form work and only need a small amount of material. Again, I caution you that this is a job for someone who knows what they are doing, not because the work requires any special skills beyond that of ordinary concrete work, but because it is essential to obtain a mix that is designed specifically for this purpose and because good bond must be achieved between the old and the new ! ! material. You can also ask for the cost of removal and installation of an entirely new sidewalk for comparison. I may be missing the point here since I have not even seen the situation and my suggestion could be wrong, but I think that you just might save a good deal of money if you can find a contractor that will take this route. Unless water is getting into your house or lack of drainage is causing foundation settlement, I would avoid calling in a drainage guy. The problem is the pitch and elevation of the sidewalk. -Frank

We need to have some exterior drainage work done at our Oakland home (french drains, drain lines, etc.) and are looking for recommendations of reliable, timely drainage contractors. Thanks! Dave

see my previous post for Mircea Ilie. he did our basement remodel plus half bath, and put french drains in as part of the job. we were very pleased with the work and our basement is now dry as a bone. Diana

2000

I have a concrete walkway along the side of the house that gets about 3 inches of water on it every time it rains and takes a few sunny days to dry up. Does anyone have advice or recommendation about getting this taken care of? I'm thinking I need someone who will put a drain in the walkway. We're in Albany.Thanks! Kathy

We are currently having a large drainage problem resolved by Ward Construction in Richmond. The have been in business for many years, were fairly reasonably priced (in this ludicrous market!), and have been easy to work with. Their number is (510) 215-3636.

We had a drainage problem that let to flooding of the laundry room and downstairs landing. We found there are some very good high-end outfits, which will analyze the problem and give a full written report in a very professional glossy folder. But you pay a lot for the professionalism. We had one such outfit come to our house for drainage assessment and a bid for the work. They came very highly recommended and we liked them. But the work they recommended (french drains around the house and also additional drainage underneath) was very extensive, and expensive. We called another highly recommended, and less glossy, guy, Tom Morris. He agreed on what the problem was, but thought outside French drains would probably suffice and that it would be easy to do that first and add the under-house drainage if there still was a problem. His work was very reasonable, his people extremely responsible and neat, and despite several years of sometimes record rain, the laundry room and landing (and the area under the house) have been bone dry. We were, as you probably can gather, happy with Tom's work and have recommended him to others. His number is (or at least was several years ago) (925) 254-9289. Leslie

We just finished extensive drainage work on our house and I was just saying to my husband yesterday that if our basement doesn't flood this winter, I would definitely recommend the company that we selected. After getting three bids, we chose Ward Construction and so far we have no regrets. Their bid was fair, they were extremely professional, they were efficient and polite and they even paid attention to the volume (noise level) of their work during nap times. We have yet to test the drain - February is usually the flood month - but I am pretty confident that their work will hold up. The only problem we had was that one of the workers hit our PG&E gas line with the shovel, but even that was handled well. You can reach Ward Construction at 510-215-3636 Lisa

mbevir
We are going to get some construction work done on our house, including drainage. Does anybody know anything about, or better still have experience of, Eric Burtt of Burtt Construction. Thanks very much in advance.

Cathy
I highly recommend Eric Burtt. Eric's company replaced our foundation and installed drainage when we moved into our house 9 years ago. Eric was great at laying out our options, and explaing them at a level we could understand! His crew worked diligently, and the job came in on budget, and in the timeframe he had outlined. We recently used Eric for a foundation and drainage inspection on our new home. Once again, he was excellent at explaining our options.

Erosion from hillside stream

April 2002

We live in the Oakland Hills - and there is a river that runs next to our house (there is primarily only water in the river during and right after a rain storm). Recently it seems the river is erroding closer to our house, and I am concerned about the dangers, and what damage it could cause to our foundation. I am told a geotechnical or geologist is what I am looking for, and thus far, have not been able to find anyone. I am looking for someone that can look at the river and let me know if there is any potential danger to our house/foundation. And if there is a potential danger, what we can do about it. Thank you, Merrylee

Merrylee, I would recommend giving either Waterways Restoration Institute or Urban Creeks Council a call. Both organizations have technical people on staff (hydrogeomorphologists would be best) that can give advice on a consultant basis or provide contacts that are better suited to your needs. The number for WRI is 510-848-2211 and UCC is 510-540-6669. You might also try following up with Roger Leventhal of Far West Engineering who does work for UCC-- don't have a direct # for him. Good luck. Luisa

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