We started working with Drainage Pros back in 2023... it's taken us awhile to write this review... buts it's a review that's well deserved. We had a significant drainage issue when we first bought our home and we talked to all sorts of professionals about possible solutions. Nothing seemed to make sense until we called Drainage Pros. Tom came out to visit our property within a week or so of us calling - his assessment was thorough, transparent and he was more than happy to offer consultation on our situation. We felt relief immediately. We soon met Rich who walked us through each phase of the project- no delays no hidden costs . Even 3 years after getting our drainage installed we are still in contact with Rich and drainage pros for our yearly maintenance and for any questions we might have regarding our system. read more

I did not use this team. But they came promptly and gave me a very professional quote. The sales guy was super knowledgable.

Can't say enough good things. Yes, they do charge a fee for quoting a project. But, I don't blame them - the assessor I had (Tom) was professional and knowledgeable and spent many hours putting together a work plan and estimate. I didn't mind paying. I ended up going with it, so the fee was waived. I had a complex drainage problem that was affecting my foundation, and I live on a very steep hill in Emerald Hills / Redwood City. I'd had probably 10 different contractors out to look at it, and each one told me something different. Drainage Pros was the first company where I felt confident that they knew what they were doing. The price wasn't bad, either - it was about 30% cheaper than a similar quote for the same work scope. The crew, led by Javier, was incredibly professional. They had great judgement and basically never needed my input on anything. They dug a 12-foot trench, *by hand*, four stories up on the ridiculous cliff I live on. I couldn't believe it. At each stage, they went beyond what I expected. I feel like our house can handle basically any amount of rain without an issue. I've hired a lot of contractors, but Drainage Pros were for sure the most professional, trustworthy, detail-oriented crew I've seen. read more

Solid company. Responsible, dependable and professional. Had a French drain installed and the foundation started to crumble (old crappy foundation) and they quickly built up a frame to support the house and repaired that section of the foundation. Glad I went with these guys rather than the other who quoted much less. Also, when the power went out and I called (on a weekend) with questions they got back to me quickly and addressed my concerns. If you're trying to find someone to do work you want done right just use you have found them. You can stop the endless searching and wondering. read more

Drainage Pros did an excellent job from my initial call for an evaluation to the completion of the job. I had a need for extension french drain and sump imstallantion along with concrete work required to ensure a functional and attractive solution. The team was on-time and completed the work faster the expected. The results are incredible. The team from Jonathan who contracted the work to Alberto and Eusebio who managed the team and completed a great deal of the work, thanks for a job well done. read more

During the 2022/23 winter season, I was getting quite a bit of water in my crawl space and in my garage. I also noticed some cracking inside my home from settlement issues. I called Drainage Pros and met Tom on site who methodically went over the issues he saw. I received a quote for the work shortly thereafter. Rich, Tom and I spoke on a call to hash out any concerns I had and go over the details in the scope of work. During the work, the Drainage Pro's team responded quickly to any concerns I had and was very attentive to detail. I have had the drainage system in place since summer of 2023 with no further water intrusion issues. If you want an experienced and professional team, I would recommend going with Drainage Pros. read more

Rich and Tom went out of their way for me. Sand and contractors are expensive. They came back multiple times to make sure the job was done right. My foundation was extra deep and he honored the quoted price. All the jackhammering and digging wasn't easy. His crew did it expertly. I was kind of jealous. I want to quit my job as a software engineer and dig holes with those guys. read more

We met with Tom from Drainage Pros and we were thoroughly impressed. Not only is his knowledge of drainage (and science, elements, engineering, and many other topics) vast and expansive, he is genuinely interested in teaching. He was incredibly thorough, patient, and flexible throughout the scoping of the entire project. His attention to detail is impeccable, and you can trust that Drainage Pros will leave no stone unturned, literally. We'd highly recommend working with this team. read more

Drainage Pros installed a French drain around the entire perimeter of our home and basement. Rich Maraina, the Owner, Tom Aldine, the Estimator, and Javier, the Forman were all a pleasure to work with. They were very friendly, professional, and willing to adjust for our specific needs. We greatly appreciated their flexibility. We are very pleased with the final project. They do excellent work! Steve & Pam Collins read more

Drainage Pros re-did all of our underground storm drains and installed a channel drain in front of our garage. They were able to do everything with minimal cutting of any of our brick and concrete walkways around the house. They were extremely professional and the job was done quickly, I'm still impressed with what they were able to do in such short amount of time. read more

From our first meeting to discuss our serious drainage problem, we knew Drainage Pros would get the job. Rich Marianni, the owner oversaw his crew of experienced contractors. It was a pleasure to have this work completed with such a professional team. Our project was comprehensive, replaced existing decks with proper drains below, stamped concrete and surface drains placed in planters which did not require removal of our lovely landscape. After 50inches of rain the past winter we had no issues with standing water, Job well done. Thanks Drainage Pros Team Bob and Cindy Hartstein Blackhawk Country Club read more

Drainage Pros - A beautiful finish. Our lovely garden was preserved. Drainage Pros installed surface drains and new stamped concrete. - Waterproofing Near Me

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Charge you $200 to come out for 5 minutes and then send a non-detailed estimate for a million dollars for a simple job. They clearly don't want residential jobs but they do want to walk around collecting checks for estimates. read more

I made an appointment with Drainage Pros to inspect the condition of my foundation to determine whether a French drain system was needed. The cost was $250. Instead of giving me an honest assessment of my foundation, their focus was on giving me a quote for French drains. The owner Rich told me that Jonathan who inspected my foundation would get a commission if I hired Drainage Pros to install French drains. Drainage Pros' basis for recommending French drains was that some of the soil in my crawl space was damp, and they saw efflorescence. I had two other inspectors give me a second opinion. Both of them looked carefully at every pier and my entire foundation and said that there is no mold and "no evidence of damage or deterioration." They both said that damp soil and efflorescence alone do not necessitate a big problem or a need for expensive French drains. Dampness and efflorescence is common in crawl spaces and not a problem as long as you have good ventilation, and there is no evidence of damage or deterioration to your foundation or piers. I cannot recommend Drainage Pros because they misled me by telling me I was paying $250 for an inspection and assessment of the condition of my foundation, but they really were just charging me for a quote to install French drains. In fact, the inspection report they provided did not even include any pictures. And the pictures they eventually provided me after I followed up showed no evidence of any mold, damage, or deterioration to my foundation or piers. read more

TL;DR The Drainage Pros team installed a french drain system at a reasonable cost. The project was completed quickly and ahead of schedule. I would highly recommend them for any drainage project. Here is our experience: Our home is situated on a slight gradient, sloping from the neighbor's fence towards the main structure. Whenever it rains a lot, there would be visible moisture in the crawl space. To protect the foundation, we wanted to install a proper drainage system. We scouted google / yelp for a drainage company. Eureka! We found Drainage Pros. Getting an appointment with Drainage Pros was easy. Jonathan came by on the appointment day, walked through the property, asked several questions, and explained the available options. A couple of days afterwards, we received a written proposal with a robust set of options. Jonathan helped us navigate the options and come up with a solution to fit within our budget. The actual excavation and installation went without any hitch. The foreman was here on most days, Jonathan and Rich (the owner) came by a couple of times during the project. The crew used an automated conveyor belt system to move the dirt from the back of the house to the street and hauled it away. After the project was complete, Rich came by to ensure everything was done perfectly. All in all, a fantastic and thorough job. I would readily hire them for all my drainage needs and then some. read more

Drainage Pros - Vapor barrier against the foundation, french drain and sump pit. - Waterproofing Near Me

After we had some flooding in our house after the big rains last year, we realized we had a problem. We tried using a local contractor, but he never got around to doing the job. Finally, we called in a drainage professional. Jonathan came out and thoroughly checked my house, which sits on a hill. He carefully laid out exactly what we needed and explained how the project would work. Finally, the job was scheduled, and it was successfully completed a couple of weeks ago. Eusebio and his crew worked very hard and turned the whole thing around in a little more than a week. They were always courteous and careful. They were able to do nearly all of the work without coming into the house, which was great. I was very happy that, even after pulling up some of my deck and cutting some cement, they put everything back exactly the way it was and left it looking great. I was able to see my new sump pump in action during the last rain storm and it is thrilling to know that I'll never have to worry about flooding again. I highly recommend Drainage Pros. read more

This review is well overdue but for a reason! We moved to a new house in 2017 and the next spring we noticed water sipping into our bath which is above the house concert slab. We met a few contractors to install a french drain/pit, as well as collecting/diverting roof rain water and pouring concrete around the house. We decided to work with Rich; his price was not the lowest but considering his work quality and his work ethics, we were very happy to work with Rich. He was great in giving us options, listening to what we want and stay on schedule and budget. After three years, all of his work stayed flawless and we have never had any issue with drainage since. I strongly recommend Drainage Pro if you have any issue with your home/land drainage or you have any concrete work around the house. read more

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Drainage Pros was one of the three companies I initially called to give an estimate for my french drain installation. From the first interaction through the final invoice (after completion of the project), the entire team was professional, friendly, knowledgeable and responsive. Jonathan first came out to take a look at the area and provide me an estimate. He was friendly, quick and followed up shortly after with a detailed proposal of the work to be performed and the fee. He was super responsive and gave me thorough answers to all of my questions. He was flexible and able to accommodate my request for a slightly earlier time frame. Rich, the owner, was also available for any questions and to talk through anything needed. The level of professionalism and experience displayed through the initial process made my choice to go with Drainage Pros a no-brainer. The team started and finished the project on-time, kept the area being worked on tidy and clean when wrapping up each day and communicated with updates throughout the process. Alberto (Bart), the project foreman, was wonderful. He even made sure to match and touch up all the paint for any affected patches on the house stucco or cement once the project was complete. I will be using Drainage Pros going forward for all related projects. Working with this team was truly a breath of fresh air, and my basement is now clean and dry. Thank you Team! read more

I am incredibly impressed by Drainage pros. Rich, Jonathan, Javier, the rest of the construction team, and all of the office staff I worked with are pros in every sense. We have a 100 year old house in the east bay hills. An engineer looked at our house and said that if we want to avoid expensive foundation problems, we needed to add a surface and subsurface drainage system. Drainage pros figured out a way to gravity feed all our water (ie no sump pump) even though 1) our basement footing is 7ish feet below ground at points, and 2) most of the street bordering our property is up hill from the house. Additionally, even though it was a pretty huge project, Rich was very understanding that it would take us an extra few days to get cash from an investment sale for the final payment. I offered to take out a loan to get him the money quicker, and he told me I didn't need to do so. I see some folks balking at the fee for inspection. Please don't. These are serious people who can address a complex problem. We got quotes from a few entities and Drainage pros' bid was extremely fair. Moreover, they figured out a purely mechanical solution, saving us maintenance and replacement costs down the line that other companies were not able to identify. I'll update this review in a few years to let everyone know how the system holds up, although I am confident it will work well. read more

Tried to get a quote for services and never got a phone call back. I left three messages but ended up finding another drainage company. I know it's a busy time in their industry but I'm sure they listen to their messages and could have called me back and said they were booked out. read more

Our house is twenty five years old and I notice that water has been collecting water in one area of the house. My concern was that the dirt in our area is like clay it retains water and does not drain very well. The ground around the house is so compacted that water was not going anywhere. The current drain system was not working and could have an adverse affect on the concrete slab. I called Drainage pros because they had very good reviews and I'm glad I did. Jonathan explained everything very well and how his team can make sure I minimize standing water. He went over what they were going to do and explain why they need to install certain drainage grates. He sent a detail worksheet with everything we discussed. We agree to continue and in about four days they completed the work. Since I was home I watched how they worked through the process and they were very diligent in getting everything done right the first time. I was very impressed with the equipment they used to make sure the water drain properly. I recommend Drainage pros. read more

We were experiencing significant pooling of water in our back yard and flooding in our crawl space with all the heavy winter rains. Jonathan came out and did a very thorough inspection and detailed plan for our project. Importantly to me, he didn't try to sell me on a more extensive project than what we needed to deal with our issue, as some other contractors tried to do. Javier and the crew did an excellent job and stayed on schedule even with the need to work around an unforeseen issue (due to a filled in pool in our yard that we did not know existed). The difference in drainage before and after has been night and day. They also came out and promptly took care of a punch list item for me, which was great. I was very pleased with my experience and would highly recommend Drainage Pros read more

This is a bit overdue, but now I can speak to the work after seeing the results in action. Our house is cut into a hillside, and would regularly have water intrusion in the area under the house, depending on the winter rains. The ground under the back of the house spent more time as mud than dry. There was also plenty of efflorescence along the garage and cellar area walls, indicating that a lot of water was hanging out and not going where it needed to. Rather than wait for the problems to become worse (and more expensive), we collected multiple quotes, and then went with Drainage Pros. What I liked about Rich is that he really took an interest in my property, and wanted to find the best solution for me. While the fix was anything but cheap, doing it right involved a LOT of work, and I only wanted to go through this once. After signing some paperwork, we made arrangements for his crew to spend the better part of a month at my house. To say the crew worked hard would be an understatement. They showed up early, moved an absolutely incredible amount of material each day, and were well organized. The foreman, Javier, was always happy to answer any questions, and managed the job well. The end result? DRY!!! When it rains, I am still known to risk getting soaked just to watch the jets of water from the updated system exit at the sidewalk. It truly never gets old. :-) read more

Upon buying our home we found that there was a serious drainage issue where standing water would appear every winter under the house and you could put your fist through the mud. We called everyone on Yelp that did French drains and got 5 quotes. My focus was quality over a few grand as you want this done once, and don't want to think about it again. We went with Rich because he provided the most thorough quote, always answered my questions, especially with how detailed I was about specifics. He backed up his work with an extra warranty and 3 references spoke highly of him. We also extended our drain through part of the backyard. Rich advised me not to spend the extra money as it was overkill. A compliment to him not just trying to make an extra buck. Overall we got a French drain, sump pump, high water alarm and moisture barrier. We have had the drain for 3 winters now and it's been incredible seeing how dry the house has stayed under us. I prayed the money was well spent and it was, even when your literally throwing money in a hole :) I will happily vouch for Rich and his team if you want a reference. read more

Drainage Pros just finished installing drainage and doing concrete work at my home. The project required them to dig down about 12' around the perimeter of my hillside home. The process was seamless and fast. Once the project started, major progress was made every single day. Amazingly the whole job only took them about a week. When complete the the job site was clean and all landscaping put back. All the staff was friendly and courteous. A special thank you to Jonathan and foreman Javier. 5 Stars! read more

We had a terrible issue with flooding on our lower deck. Every year it was a struggle to make sure our 35 year old sump system worked. We had many wet nights in the rain making sure the sump would turn on. Drainage Pros came in and designed the perfect solution for us. Rich was awesome. He listened to our needs and made sure the drainage system fit our budget, and the aesthetic of our yard. He made sure the pavers he used matched another patio we had. Alberto the Lead Installer was wonderful. He built us a great system that has been nothing short of a lifesaver, especially this year. He was also a Pro at laying the pavers and cement. Terry at the back office has always been attentive and sweet whenever I needed to call. Anyway, no more checking the sump in the middle of the night, and no more freaking out about potential water under the house. Without question I would use them again. read more

We hired Drainage Pros August 2020 to install an extensive system including sump pump to push flow to the street. First winter seemed to work well. This year during both major rain events the pump failed, we had extensive pooling of water which went under our house, over onto neighbors property. We had to rig up sumps and run hoses to the street in torrential rain. We contacted Rich many , many times and he never has come out. Email and call to Jonathan - no response whatsoever. Be careful- the 5 year warranty is apparently not at all the truth. read more

Drainage Pros did an excellent job in our yard. There was a lot to fix. Now we're ready for a deluge, and we'll sleep well when it rains. THE PROBLEMS THAT THEY FIXED: The old drainage was from a surface drain in the back yard through a buried corrugated hose (6", plenty big enough, but read on) to the street, under the sidewalk. We'd had a concrete pad laid down log ago for a shed we never built, on the side of the house, right on top of that hose where it couldn't be reached if it went bad, which it did, and extending right to the retaining wall so an emergency channel couldn't be dug to drain the rainwater if the drainage went bad, which it did. Then we'd put down plastic sheeting to block weeds in the front yard downstream from there, covered with bark chips -- that was the coup de grace to our drainage. It blocked surface runoff, the ground got waterlogged, and the drainage hose floated up out of the mud, into a position where it was no longer downhill from the surface drain, so the backyard started flooding. And that drainage hose was full of roots anyway. So Drainage Pros sawed off a few inches from the concrete pad (very neatly) so they could dig a ditch between the pad and the retaining wall for solid PVC pipe, replaced our old surface drain and added several more where needed, and ran the pipe down to the sidewalk, drilling underneath it where necessary because the old drain was too small and plugged with roots anyway. Of course they had PG&E mark where the electrical lines were buried so they could avoid them. They had to cut through a couple of lengths of PVC irrigation pipe I had installed years ago when I was still young enough to do that, and they repaired the breaks they had to make. The drains they installed had a bit of clearance just below the lip of the drainpipe where it emerged from the concrete holding it in place, which would have allowed an inch-deep moat of standing water to form around each pipe exit, so I asked them to bring the concrete collar up to the rim of the drainpipe so the moat wouldn't form. They did. Years ago I might not have thought of that, but a new species of mosquito is spreading in California that can breed in an amount of standing water as small as a bottle-cap. I don't think it's been spotted in our county yet, but it's only a matter of time. I'd hire them again in a minute. We plan to replace the rotting retaining wall next year, and we'll hire them to do it. read more

We had Drainage Pros check the drainage at our home after the excellent job they did on our rental property last year. They took pictures of the problems with our drainage and the damage it caused. They gave us a detailed description of the recommended work to solve the drainage problems and prevent further damage. Their crew was efficient and neat and did a great job-we highly recommend them! read more

I felt so lucky that I have a friend who already worked with Drainage pro and recommended for me to work with them. They are very honest and hard working crews who happy to rely on. You can trust Richard, Alberto and Terrie. They saved me from flooded backyard. read more

I paid over 200$ for them to come and give me a quote. They wasted my time and money and I have never received a quote. I called and and texted and was told they were very busy but if you are going to charge people to come out and give out quotes you need to provide that service before accepting new work. Waste of time and money. read more

My old sump pump was making terrible noises even when there was no water to pump out. It was a disturbing noise and we had to unplug it to stop the noise, but that wasn't safe, based on the unreliable weather prognosis. I talked to Rich Mariani and he said he would send Bart, his technician to bring me a new sump pump and to install it and connect it to a new drainage line. I was thrilled to have it installed before the next heavy rain this week. read more

During last winter's storms we had an underground creek run through our crawlspace and saturation of the soil caused our house to shift a bit. Drainage Pros assessed the problem, provided a written estimate, installed a French drain system with sump pump, made repairs to existing storm drains and got all of it done before the rains started. They completed the project in a week. The workers were punctual and efficient, the work was professional and neat, and now that there has been some rain it is clear that all of the system works as intended. Alberto (crew chief), Jonathan (engineer) and Rich (owner) were always available, helpful and professional. The project was not cheap but the price was very fair considering the amount of work that was needed. I am looking forward to working with them in the future for any new stormwater issues. read more

Needed a complete overhaul of our drainage system at the house. They did a great job and put in an awesome paver driveway for us after the drainage work. read more

This business is very GREEDY and UNPROFESSIONAL. I originally called this company in January because our house flooded due to the heavy rains and our drained had been backed up. The lady who answered the phone told me it would be $250 to come out but they still may not be able to figure out the solution. We had our drain serviced by another company and it only needed to be cleaned out. We no longer have an issue and drain is great. Now we were looking to add additional drainage as a preventive measure so I had saw the Drainage Pros pics on yelp and had spoken to them previously and decided to call them back. This time my husband calls she said it was $350 to come out and looking at our address it would be around $30,000. She also said she had never spoken to me but when I called she had record of when we spoke? I'm confused are you repiping our whole house, adding an additional adu, a gazebo, a pool perhaps. So I call her to clarify why the price to come out went up and what work would be necessary at 30k? This lady has a bad attitude and says well I told your husband but I would have to go over the notes with you alllll over again, now its like I'm giving you another estimate (after she initially said she isn't the estimator), the price went up because Pittsburg isn't profitable, its too far out (but they're based in Walnut Creek?). Old lady with great operator voice but poor attitude. For $30k you should be willing to have exceptional customer service and explain whatever is necessary. Stay away from these people. Im following my first instinct. If you are upcharging and have a nasty attitude already it can only get worse. As I told her when someone is willing to even entertain the thought of spending this type of money your customer service should be much better. read more

I have to start by saying that Rich really knows his stuff. He was able to determine what was going on with the drainage at our new house before we completed the deal. Turns out the drainage had failed around the entire house. It was causing water damage on the slab. He turned around his report timely as we were really concerned that this would be a deal breaker for this house and we may have to walk away. His quote for the work was pretty high and he charged $450 for the inspection which our sellers refused to pay for. That said, he got us the report timely which we appreciated! Only giving 4 's because he was very late for our appointment, he did communicate that he was caught in traffic and gave a $50 discount- thank you Rich BUT the quote was very high at 3 times the average cost for the type of work needed. read more

We had a major flooding issue during the rains and also signed up for the $250 site visit. I understand that given the situation with the rain this year you need to qualify out the tire kickers. They came out and really had no idea on how to solve the issue and said they would follow-up with a documented plan. The plan they sent me was for a $4,500, 1 day "exploratory dig" to determine the issue. Really thought I was that stupid. read more

Year before last, we had drainage pros replace some clogged drains in our yard. They did a beautiful job but the drains had not been tested until the recent epic storm. I ca now say that they worked like a charm. I would certainly recommend Drainage pros and would use them again. read more

Drainage Pro and his team did the French drainage work and installed Sump Pump at my house for drainage issue .they also did the maintenance work .they did a good job . Rich always answers the phone call and explains the work . I will use their services again . read more

I am very disappointed to write this review as I have never written a 1 star review; I only write positive ones as I love to support small businesses. Drainage Pros charged me $150 to come out to give me an idea of how we might deal with our problem of back patio drains not emptying to the street like they were supposed to. Jonathan, the salesman, came and told us what we already knew, that the drains were not working. He did not go under the house, as I was told he would, to find out where the water was actually going. it took weeks before he got back to us and had nothing to share - no plans ( other than the one we had suggested that he disagreed with when he was here) , no estimates, nothing. We emailed, texted and finally We set up a zoom appt and We had drawn up diagrams of our drainage systems to better help him come up with a plan, and Nothing. Nothing. We wrote and emailed and he was busy and sorry but no follow through. I contacted th owner via snail mail, text, phone but no response. I want my $150 back as I received nothing for it. Rich, the owner, may be knowledgeable but we never received the benefit of that. To not respond to a paying customers is not good business. When I called again yesterday, Terry, the scheduler, said she had told Rick every time i called or wrote. When I mentioned I would have to write a review for others, Rich the owner called immediately. We talked 30 seconds and he said we would do a 3 way call with Jonathan, I said that was great, waited by the phone and no call. This is not good. My recommendation would be to try someone else. Sincerely, read more

I will always be thankful to Rich his company came and save my house from underground water around my property his knowledge of the problem that I was having gave me a reassurance that I was with someone very knowledgeable about the issue. His company was very accommodating to helping us out fixing the issue that I we were having. I strongly recommend his services. read more

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