2016 EBSCO Research Best Pick

NV Waterproofing

4th year as a Best Pick

  • A-Rated
  • Verified License(s)
  • Verified General Liability
  • Verified Workers' Comp

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

Areas Served:

Washington, DC

  • Services Offered
    NV Waterproofing offers interior and exterior waterproofing and age systems, backup sump pump systems, window wells and drains, erosion control, commercial sealants, crack repair, sheet and liquid waterproofing membranes, French drains, structural repair, regrading, driveway drains, mold prevention, and downspout drainage systems.
  • Warranty
    NV offers a lifetime warranty on most interior work and varying warranties on other services.
  • Awards & Certifications
    The company is a Custom Builders USA (CB/USA) Preferred Vendor.
  • Organizations
    NV Waterproofing is a member of the Northern Virginia Building Industry Association (NVBIA) and the DC chapter of CB/USA.
  • Licenses

Select Quotes from Customer Interviews

A selection of 249 homeowner reviews:


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They did the work that we agreed upon, and they did it well and in a timely fashion. They built a new half wall in our sub-basement, and they also put in a drain and a new sump pump. I believe we found them through a referral from my brother, and I would recommend them to family and friends. I would grade them as an A.
NV Waterproofing did a good job, and we haven't had any problems with leaking since—that's all we really needed. They did waterproofing. They were knowledgeable, clean, and efficient. They get an A rating.
Everything was great, and they did a good job. It was waterproofing. They fixed the problem. I would say that they get an A grade.
They arrived when they said they would, and they got the job done in the time frame that they specified. They were polite and professional, and so far, it looks like what they did is working. They offer a 20-year warranty as part of their work, so I'm completely satisfied. They excavated about 34 feet of the exterior of the house, tarred it, put a water retardant material over that, and did the piping to collect water down at the bottom of it. They filled it in and put in a sump pump. They did it in five days, just as they said they would. I was totally satisfied based on what I now know, and I would grade them as an A.
NV Waterproofing did an excellent job. I was happy with their service, and I would use them again. They were very professional. We had a leak in the basement bedroom, and the water was coming through the basement wall. They get an A+ grade.
They did a really good job, and they solved the problem. They were outstanding. I had six to eight leaks in the concrete wall in my basement, and they sealed and stopped the leaks. I would rate them as an A, for sure.
I had a very good experience with NV Waterproofing. They got the job done to our expectations, they always showed up on time, and they cleaned up after themselves. They installed a sump pump, and they redid our floor. I'd give them an A+.
I don't have water in my basement anymore, so they were successful. They cleaned up after themselves, too—A+.
We're in pretty good shape. We recently had waterproofing from NV Waterproofing about a year ago, and it's held up pretty well. They were able to help us. We had a number of cracks in the basement that they were able to seal, and the water has since stayed out. It's holding up very well, and it's in good shape. The technician knew what he was doing, and they made very little mess. I would give them an A+.
I was very happy with them and very satisfied with their professionalism. The workers were very, very professional, timely, and communicative. I would use them again, if the need presents itself. They waterproofed part of the outside of the home. It took several days, and I was satisfied with their work. I would rate them as an A+.

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