NV Waterproofing
6th year as a Best Pick
Best Pick 2018
certified company
Based on 281 Surveys
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Compiled Score: star star star star star
NV Waterproofing has received 5 out of 5 stars (A-rating) based on 281 customer surveys conducted by Best Pick Reports.
6th year as a Best Pick Call
"We focus on delivering a high-quality job the first time as well as an honest, professional experience for our customers. We pride ourselves on the excellent customer reviews we receive."

John Forster | President
Company Information
Services Offered
NV Waterproofing offers foundation repair, crack repair, interior and exterior waterproofing and drainage systems, backup sump pump systems, window wells and drains, erosion control, commercial sealants, sheet and liquid waterproofing membranes, French drains, regrading, driveway drains, mold prevention, and downspout drainage systems.
The company offers a lifetime warranty on most interior work and varying warranties on other services.
Company History
NV Waterproofing has been serving customers since 1986.
The company is a Custom Builders USA (CB/USA) Preferred Vendor and a member of the Northern Virginia Building Industry Association (NVBIA) and the DC chapter of CB/USA.
MHIC #129703
Areas Served
Bethesda, Chevy Chase, Gaithersburg, Germantown, Montgomery Village, Potomac, Rockville, Silver Spring

“They did a thorough assessment of my home, and I think they made a practical recommendation for the issue I had and resolved that issue. I was pleased with them. They repaired minor cracks in the cement wall by forcing a sealant into them and sealed them shut. I'd give them an A+. I would highly recommend them.”

“NV Waterproofing did great work. They cleaned up well. They told us everything that needed to be done. They're very reliable. There was a leak in the foundation, and they did some other things. I'd rate them A+. They really were great.”

“There was a crack in the foundation of our basement, and they sealed it. They're A-grade.”

“They were very good. They were fixing a crack. They did very well, so I'd give them an A overall. They're great. I would recommend them.”

“I wasn't there when they did service. They dealt more so with my realtor, but she reported back that everything went smoothly. There was—the work was done correctly. They were doing foundational repair. I would definitely recommend NV Waterproofing.”

“I liked that the guy that came out and did the repair on my wall is a good guy and did a good job. The wall was included with some foundation repair. They get an A, and I'd recommend them to friends.”

“NV Waterproofing did a good job. It was foundation repair. I'd rate them A.”

“I guess I liked that they were responsive, communicative. They did waterproofing. They filled in some cracks so water couldn't get in. I'd grade them A.”

“They were on time. They did what they said they were going to do. They did waterproofing. Maybe it would go under foundation repair because they did seal some cracks. But they did a couple of things. They sealed some cracks in the foundation, but they also dug trenches and put down pipelines to divert water from the drainage spout away from the house. So it was two different things they did. I would give them an A overall. It's not leaking.”

“I liked that they told me what the problem was, what it was going to cost to fix it, and delivered the solution in the time that they promised it. They did foundation repair and waterproofing for me. They get an A. I would highly recommend them to a friend.”

“NV Waterproofing was thorough and did a great job—just wonderful. They did a fabulous job. They fixed a crack in our retaining wall and waterproofed it. A's across the board.”

“I liked their response and good timing from the estimate to the guy who did the work. They were very attentive, and they did a good job. It was foundation repair. There was a crack in the foundation, and they took care of it. I've give them an A.”

“They knew what they were doing, and their workers were careful. They fixed a crack in the wall, and they dug a French drain. They did excellent work.”

“They did foundation repair. They were very responsive, and the results have been good. I haven't had any issues—A.”

“They did a good job. The repair is very good. They're excellent.”

“They did foundation repair for me. We had a leak in the basement that another company had attempted to repair and fill in, but a year later we had wet drywall again. NV Waterproofing came in. It's been almost a year and a half, or two years, and there have been a ton of storms without a leak. It's been great. I'd give them an A overall.”

“They were really good. I'd used them before, and that's why I used them again. They were good. I had a major leak in the basement. They also did some foundation work.”

“They did work related to waterproofing a foundation. I'd give them an A.”

“I liked their timeliness for the appointments, the quality of the work done, and the professionalism while on-site. They did both foundation repair and waterproofing for a crack in the foundation that was leaking water. I'd give them an A.”

“It seemed like they communicated well amongst themselves and through the leadership chain. There were two foundation cracks. I explained to them where I thought one of them was when they did the initial digging, and they listened to me very carefully. Sure enough, they went ahead and dug a little bit further to the side and found the actual problem. They had no problems doing that. They had good customer service. Their folks were very friendly and professional. I'd give them an A overall.”

“My basement flooded and they jackhammered around the perimeter of the basement and installed drains and two sump pumps. They had good customer service and follow-through. I'd give them an A.”

“They did a good job. They just were very thorough and they were fast from a scheduling perspective. They were filling a crack I had. I'd give them an A.”

“They did a great job. They did a foundation repair. There was a crack and they sealed it up. They were punctual. They didn't mess around or play around with numbers. They told me exactly what it would cost. There wasn't a lot of hemming and hawing and trying to jack the price up. They told me what it was, and that's what it cost. I'd give them an A.”

“There was a small crack in the basement. NV Waterproofing fixed it, and it hasn't leaked since. They get an A grade from me.”

“We had a crack in the basement wall, and they evaluated everything, found the crack, and did the work. They earned an A. They definitely knew what they were doing, and they explained how they were going to fix it and answered our questions. It was a very informative, good experience.”

“The guy from NV Waterproofing did his job very quickly, and he was very professional and very friendly. He also showed me what he was doing; he put some polyurethane injections in my foundation. I'd rate them as an A.”

“I think NV Waterproofing did a good job. They fixed a crack in the basement. They did the job very well; I had no complaints whatsoever. I would give them an A.”

“They were prompt, initially, and they resolved the issue with me in the end—that was really good. The pipe needed to be extended further away from the wall. This was my first time using the service. They were able to do everything in a timely way, and the cleanup was great. I would rate them as an A.”

“NV Waterproofing did a big job for us. They fixed a buckled basement wall, and they installed a French drain, took the wall down to the foundation, and rebuilt the wall. The work has been terrific so far. It has stayed dry—no problems. I would hire them again, absolutely. The customer service was very good. I would give them an A rating.”

“NV Waterproofing did a very good job, and I was satisfied with what they did. They did what they said they were going to do, they were very professional, they showed up on time, and they did the job straight through. I was pleased with their work—I would give them an A+ rating.”

“We had the house on the market, and the inspector found a foundation crack. NV Waterproofing went in and fixed it. We were super happy. They're an A+.”

“The guy from NV Waterproofing that did the work was probably one of the best contractors that there has ever been. He had to dig the dirt around the foundation, and he was such a hard worker—he really was. I would recommend them to friends and neighbors. That company was really wonderful. I would give them an A+. I think there were actually three different companies in the Best Pick Reports, and I chose NV Waterproofing from there. I had called up two of them, but I think NV responded first, and I think they had a lot of customer referrals that were really happy with their work. I was so happy with NV Waterproofing.”

“It looks good. I went and checked the other day, and it's holding very well. They did crack sealing in the foundation. I heard about them through the Best Picks magazine we get. The customer service was good. I called, and they were responsive. They came out, checked my stuff, fixed it, and left. They're an A+.”

“They sealed a crack in the foundation. The work seems to be holding up fine today. I liked the customer service, and the workers did a great job. They did a great job all around. I would give them an A+.”

“The work was good. They filled a crack in the foundation. A friend told me about them. I would go back to them again. So far, so good—there's not a leak. They came when they said they were going to come. I would give them an A+. They were good, and the guy was friendly.”

“NV Waterproofing is a good group. They repaired a crack in the foundation of our house, caused by an earthquake. The guy who assessed the problem was very professional and knowledgeable. He answered all my questions. I'd give them an A.”

“NV Waterproofing did the work quickly, and we haven't had any trouble. There was a crack in the foundation that needed to be fixed. Other companies wanted to dig up our yard and do a lot of other work, but NV Waterproofing fixed what we needed fixed. They patched the crack and fixed the leak. I'd give them an A.”

“NV Waterproofing did great work. They were open and honest, and the work was done quickly and very well. We had a crack in the foundation of the basement, and they sealed it. We were very pleased. The work is still holding up well, and there have been no problems with the rain—no leakage. I'd give them an A.”

“I had a positive experience with NV Waterproofing. They did a very good job of explaining the process as well as my options for repairing the foundation. When the decision was made, they did a fantastic job completing the repairs. I’m very happy with the results. They were definitely an A.”

“NV Waterproofing did a great job. I think that company is professional, competent, and fast. They repaired a crack in the foundation, and they did not have to do any excavation—they did it all from inside the basement. They were A+.”

“They do good work. I've used them numerous times. I would recommend them.”

“NV Waterproofing did some work for me, and it was excellent. They repaired a crack in my foundation. The customer service was excellent, and the technicians were great. They did a terrific job—I’d say A+.”

“I used NV Waterproofing on a few jobs, and they're really good. They had an estimator that works with you through the whole process, and he's really good.”

“I'd give NV Waterproofing an A. There was a crack in my foundation, and they got the work done for me. They finished the project in a reasonable amount of time. Nothing stood out about the work they did for me—it was just what they were contracted to do. I would use them again, and I would recommend them.”

“The owner of NV Waterproofing came and did the estimate. He spent a lot of time here and offered a number of alternatives to what I eventually did. He was recommended by the contractor who had built a previous home for me, so I knew a little bit about his reputation. The person who did the work seemed knowledgeable and was quite good, so I had no problems. I would give them an A.”

“The gentleman came out, and I thought he was great. The situation didn't really need remedying yet, but he gave me some good advice. I was very impressed that he didn't just try and sell me. He said, 'I don't really think you're there yet with the problem you have.' He was great. He thinks it can be a while before I have to do anything. ”

“I use NV Waterproofing. They did a really good job of the foundation repair. The quality of the work was fantastic, and I haven't had a problem with it. The technicians that came out were knowledgeable, friendly, and hardworking. They cleaned up after themselves and didn't leave a mess. I absolutely would recommend them to others.”

“They did a good job. Everything went pretty smoothly, so if I needed to, I would use them again. ”

“It seemed to work out fine. When they came out, they were professional. It was fine.”

“They were very good. They fixed the problem.”

“It's good. It's fine. The service is complete, and everything is fine right now; I think that they are nice people.”

“I think they did an excellent job. They repaired foundation cracks on some of my basement projects.”

“NV Waterproofing was the best thing I could ever do. I'm getting ready to sell my house with two cracks. I got a ten-year warranty, and I think I'll be able to sell the house much easier with a good, ten-year warranty.”

“They were great. Everything's fine at this point. It has been a little over a year now. I would use them again and recommend them. I had no complaints overall.”

“I think they did a great job.”

“I remember having NV Waterproofing out to do some work for me. I would rate their work as excellent.”

“I am very satisfied with their work. They are very professional, and they are very good.”

“They did a good job.”

“I had some work done with NV Waterproofing. We had a crack in our foundation, and they fixed it. And we were very, very pleased. Overall, I was very happy with the work they did. It is a company I would use again and recommend to other people, absolutely.”

“The service was done about two years ago. I was satisfied with the work, and I would recommend them.”

“A while back, I had some work done—NV Waterproofing. It was excellent. They came out for a French drain and pier support. Overall, it is a company I would use again.”

“The work was good.”

“Just fine. They did good work. They said what they were going to do, and they were right around the estimate. They cleaned up well after themselves. They were clean.”

“The work was good. They did my service in the last three or four years as well. They were good. I felt like they did the job in a timely fashion.”

“They fixed a crack in our foundation wall. I've been quite satisfied. So far, no leakage. They're very responsive and very professional. They did a great job.”

“They did some work for me. My overall experience with them was very good. I was very happy with what they did. The job has held up so far, no problems. I would definitely use them again. I would recommend them to others.”

“They were fine.”

“I liked them, obviously, because I chose them. I had several other companies come out, but I didn't like their approaches, and they ended up doing the epoxy. I had a crack in a foundation wall; they drilled pegs in the wall, and they shot epoxy into that, which then sealed the cracks. I just felt like they were honest. I would recommend them again. I hope I don't even have to use them again, but I have, actually. My brother-in-law recommended them to me. He's a builder and has used them, so that's how I found out about them.”

“They were good and honest. I would recommend them. It was a one-time job. It took about three days, and there has been nothing I've needed to contact them about since then.”