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TRUSTED BY WASHINGTON, DC HOMEOWNERS

  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon247
    Verified basement waterproofing services reviews

Find Basement waterproofing pros in Washington

Avatar for AA Action Waterproofing Inc
AA Action Waterproofing Inc
4.7(
383
)

Serving Washington, DC and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"Job was promised to be less than two days. The crew arrived at the time agreed on and was thorough, covered walls not affected by the work and were finished by the end of the morning. I will recommend AA Action to anyone in need to basement waterproofing, crawl space improvements and related items."
Additional Photos
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+17

Response time9 hrs
Response rate100%
2 neighbors recently requested a quote
Avatar for Basement Waterproofing Nationwide Inc
Basement Waterproofing Nationwide Inc
4.6(
183
)

Serving Washington, DC and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"We found Basement Waterproofing Nationwide to be highly ethical and very knowledgeable. A little over a year ago we had BWN perform some basement waterproofing. We were delighted with the work and the options presented to us as well as the speed with which it was done. This summer during the very heavy rains, we had some water seep into the basement so we called for an evaluation. As it turned out, the rebuild contractors (which we had opted to contract with a lower price provider vs. using subs hired by BWN) never communicated to us that the newly installed sump pump required an electrician and that it was not hooked up. This house is inhabited by tenants and we are not in the same state, so it's hard to tell where the communication breakdown occurred. Basement Waterproofing Nationwide's service rep however was extremely professional and helpful in delivering this bad news. He also checked and was able to confirm that the waterproofing was still good. He made a few suggestions like letting us know that he noticed where the drywall had been replaced that the outlet plates were never reinstalled. I also had some questions about the contract and he was very helpful and had the office fax me the pertinent info that same day. Lesson learned for me was that it would probably have been better to let BWN hire the contractors for the rebuild esp when you are out of town and unable to oversee. When there are heavy rains in the area like Baltimore had in July, it might take a few days for them to process the volume of calls especially if the nature of your request is minor. But they do respond. They are extremely professional and they stand behind their work."
Additional Photos
Response time2 days
31 neighbors recently requested a quote
Recommended by92%of homeowners
All Aspects Waterproofing, LLC
4.6(
188
)

Serving Washington, DC and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"We are the 2nd owners of a 15 year old home. Don't know why the original owner/builder did not put a sump pump in the basement, as it would have been a cheaper option in the end. If you are building a new home with a basement, put a sump pump in, don't scrimp on what is a very valuable insurance policy. After looking at a handful of other companies to retrofit a sump pump in our cellar, we picked All Aspects Waterproofing, LLC. They did a great job! Very high quality work, and outstanding service. They did a great job! We enthusiastically recommend All Aspects Waterproofing to any homeowner!"
Response time1 day
22 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for NV Waterproofing & Foundation Repair
NV Waterproofing & Foundation Repair
4.5(
185
)

Serving Washington, DC and surrounding areas

Approved (Corporate)

In business since 1986

Free estimates

Emergency services offered

"We moved into new house and quickly found out the basement had major water issues due to years of neglect (including a clogged and poorly installed English drain from years ago, and a sump pump that while it worked, never pumped water.). Given the investment we made in buying the house, we wanted to make sure we left no doubt in our mind that we were fixing it for the long haul so we could use the basement without worry of mold/mildew for our kids. We had NV Waterproofing install perimeter wide gutter guards, and a new sump pump system and drainage pipes. As soon as the work was done we got rain, and for the first time in the 4 months since we have lived here I saw the water that otherwise would be in our basement actually in the rear of our backyard by the discharge pipe. We have had a few more rains and even one snow and there is nothing better to look at then when I see the water that is coming out of the discharge pipe that I know otherwise would be pooling in my basement and cynderblocks walls, and how that was the case for many years before we moved in. Also, the team that did the work was extremely professional. We have 3 kids and pets and the team was extremely courteous. We tried to stay out of their way during the week they were doing the work, however there were times when we couldn't and the team was extremely courteous and professional. The team lead did an amazing job of explaining to me the work he was going to do, showing me updates, and then afterwards explaining in detail what was done, why it was done, and things for me to look for for in the future. I would highly recommend NV Waterproofing to others based on my experience with them. They did high quality work and were extremely professional."
Crawlspace Encapsulation
Damp dirty crawlspace with Rodent infestation
Additional Photos
Exterior drainage
Wall Anchors for failing foundation walls

+29

Response time1 day
Response rate99%
45 neighbors recently requested a quote
Avatar for Best Buy Waterproofing, LLC
Best Buy Waterproofing, LLC
4.4(
155
)

Serving Washington, DC and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Best Buy Waterproofing did a great job servicing our basement. The workman wore masks and were very aware of COVID-19. I would recommend them to anyone! The quality of their work was exceptional."
Response time2 days
5 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Drainage and Erosion Solutions
Drainage and Erosion Solutions
4.2(
309
)

Serving Washington, DC and surrounding areas

Approved

In business since 2003

Free estimates

Warranties offered

"They did an excellent job of waterproofing our foundation, burying downspouts, and replacing a patio to guarantee drainage away from the house. Most of our interaction was with the crew foreman. He spoke good English, showed attention to detail, and did a careful, professional job even when the weather got so hot we found ourselves urging the crew to take more breaks. They were not the cheapest bid, but worth it for the skilled workmanship. This is the second project we have hired them to do, and I would recommend them for any work where drainage is important."
The property before we began.
First step - demolition
Regrading and Patio
Regrading and Patio
Regrading and Patio

+66

Response time1 day
Response rate91%
4 neighbors recently requested a quote
Avatar for JES Foundation Repair
JES Foundation Repair
4.2(
1,023
)

Serving Washington, DC and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1993

Free estimates

Emergency services offered

"Jaub (not sure of spelling) Miller and his crew members were the ones to waterproof my basement wall where water was leaking. They did a super job - very friendly and answered all my questions. I would recommend JES and this team! Good work, guys!!"
Protect Your Basement
Protect Your Basement Before & After
Correct Your Wet Basement
Waterproof Your Basement
Protect Your Concrete Before & After

+16

365 neighbors recently requested a quote
Recommended by79%of homeowners
Avatar for Kozan Construction, LLC
Kozan Construction, LLC
4.6(
36
)

Serving Washington, DC and surrounding areas

Approved

In business since 1985

Free estimates

Emergency services offered

We have over 10 years of experience in the business. Here at Kozan Construction, LLC, we pride our company on reliability, great communication, integrity and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

Master bathroom walls and floor
Travertine tiles on Master bathrom
Cabinets and Counter Top
Kitchen Cabinets and Counter Top
Master Bathroom With Shower

+16

Response time6 hrs
13 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Desire Masonry Construction, LLC
Desire Masonry Construction, LLC
4.0(
15
)

Serving Washington, DC and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

We take great pride in our experience, home improvement, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. We specialize in all your outdoor needs from concrete installation and repair to all masonry needs. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

Bluestone Patio & Bench
Natural Stone Retaining Wall
Bluestone Steps
Bluestone Steps
Bluestone Steps

+28

Recommended by100%of homeowners
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Basement Waterproofing questions, answered by experts

In Washington, pay close attention to the city’s clay-heavy soil, which can increase hydrostatic pressure on your foundation. Homes near Rock Creek or in flood-prone zones may need extra drainage solutions. If you live in a historic neighborhood, review any restrictions on exterior changes. Limited street parking and narrow alleys can also affect access for contractors and equipment, so plan logistics in advance.

Helpful?

Signs your Washington home may need basement waterproofing include musty odors, damp spots, peeling paint, or visible cracks in basement walls. Homes in low-lying areas, near the Potomac, or with older construction are at higher risk. If you notice high humidity, uneven floors, or seasonal water intrusion, it’s wise to schedule a professional evaluation to determine the best waterproofing approach.

Helpful?

Combining basement waterproofing with other upgrades in Washington can be a smart move. If you’re already opening up walls or floors, consider bundling projects like foundation repairs, electrical updates, or HVAC improvements. This approach reduces repeated disruptions and may streamline permit approvals. Coordinating with local contractors can also help you avoid scheduling conflicts and ensure all work meets Washington’s building codes.

Helpful?

In Washington, maintaining your basement waterproofing system means regularly cleaning gutters, checking downspouts for blockages, and ensuring proper grading around your foundation. Test sump pumps before the rainy season and inspect for new cracks or moisture. Keep dehumidifiers running in humid months, and trim back tree roots near drainage lines. Annual professional inspections help catch issues early and may be needed for warranty coverage.

Helpful?

In Washington, unexpected costs often come from discovering hidden foundation cracks, outdated wiring, or old plumbing during waterproofing. Older homes may also have lead paint or asbestos that require special handling. Additional expenses can arise if tree roots interfere with drainage systems or if weather delays work. Be prepared for possible extra inspections or permit requirements that can extend your project timeline.

Helpful?

The Washington, DC homeowners’ guide to basement waterproofing services

From average costs to expert advice, get all the answers you need to get your job done.