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Avatar for AA Action Waterproofing Inc
AA Action Waterproofing Inc
4.7(
383
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Rosslyn, VA 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%
5 neighbors recently requested a quote
Exterior Waterproofing Experts
4.8(
26
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Rosslyn, VA and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"Dave from Clifton Contracting/Exterior Waterproofing came out to diagnose a leak in our basement. He came out within 24 hours and quickly identified what was causing the problem (gutters). Although this is a job too small for Clifton Contracting/Exterior Waterproofing, I would not hesitate to contact them down the road if I ever had an issue they would be better suited for. Thanks!"
Response time1 day
Response rate100%
4 neighbors recently requested a quote
Avatar for Basement Waterproofing Nationwide Inc
Basement Waterproofing Nationwide Inc
4.6(
183
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Rosslyn, VA and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"Basement Waterproofing Nationwide did excellent work in a timely and proffessional manner for a reasonable and appropriate fee. They said they would complete the work in 1-2 days and were done in one day. They were very careful and left things neater than they were before they came. We have used them before with great success and would use them again. So far, the problem we had, water in our basement, has not recurred, and our basement is bone dry. Tnank you Basement Waterproofing Nationwide."
Additional Photos
Response time2 days
22 neighbors recently requested a quote
Recommended by92%of homeowners
All Aspects Waterproofing, LLC
4.6(
188
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Rosslyn, VA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Angelo did a great job during the estimate process. Ends up that we didn’t need the work that we thought we needed and he was honest about that. Still provided me really great advice on what was needed so that I could rectify the issue. If I ever need waterproofing done, I’ll definitely be calling them first."
Response time1 day
22 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Lux Construction, LLC
Lux Construction, LLC
4.6(
42
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Rosslyn, VA and surrounding areas

Approved

In business since 2016

Free estimates

Warranties offered

"Alex from Lux, gave me very helpful advice and he concluded that his company’s services were not warented. Trustworthy, honest advice, and he answered all my questions thoroughly with visual and verbal explaination. Lux is a company I would recommend and use in the future. In my personal opinion, Alex saved me $10-30k in waterproofing. He said that I did not have a moisture issue in my basement and he gave me 3 things I could do to make my basement environment safe and sound for the future. A different contractor came in and gave me a free estimate to put a sump pump in for $7k and then I’d need to finish my basement for an estimate of $20k. Alex from Lux, said I had a dry foundation and that my mold on my vinyl was likely a cause from a leak years ago from my washer or my dishwasher a level above. I truly felt that Alex was truthful, helpful and Honest. Go with Lux if you seek an honest opinion and company."
Basement Waterproofing
Foundation Repair
Crawlspace Repair
New Construction
Masonry Wall

+2

Response time1 day
29 neighbors recently requested a quote
Recommended by77%of homeowners
Avatar for NV Waterproofing & Foundation Repair
NV Waterproofing & Foundation Repair
4.5(
187
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Rosslyn, VA 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 rate100%
42 neighbors recently requested a quote
Avatar for Drainage and Erosion Solutions
Drainage and Erosion Solutions
4.2(
309
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Rosslyn, VA 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 rate100%
6 neighbors recently requested a quote
Avatar for Foundation Works VA, LLC
Foundation Works VA, LLC
5.0(
5
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Rosslyn, VA and surrounding areas

Approved

Free estimates

Warranties offered

Credit card accepted

Foundation Works VA is your local expert for FOUNDATION REPAIR, BASEMENT WATERPROOFING, CRAWLSPACE ENCAPSULATION & STRUCTURAL REPAIR throughout Northern Virginia and Maryland.\n30+ years of construction experience, we solve foundation settlement, foundation cracks, bowing walls, sagging floors, wet basements, crawlspace moisture, mold-causing humidity and drainage problems.\nOur services include foundation stabilization, wall reinforcement, floor support systems, crawlspace encapsulation, interior french drains, sump pumps, vapor barriers, dehumidifiers and basement waterproofing systems.\nWe provide FREE, NO-PRESSURE inspections with honest recommendations and repair options for different budgets. Our engineered-backed solutions use premium materials and industry-leading warranties, with many systems protected for the lifetime of the structure.\nPLUS—ask about our 10% PRICE ASSURANCE GUARANTEE.\nFoundation problems? Water problems? Crawlspace problems? Call Foundation Works VA today!

Project Photos
Avatar for DB's Plumbing & Drain
DB's Plumbing & Drain
4.8(
194
)
Basement Drainage Channels - Install

Serving Rosslyn, VA and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"The pipe in the front yard providing water service to my home burst and was spilling water at the rate of about 4 gallons per minute, flooding my neighbor's yard.  On the recommendation of someone who was at my home providing an unrelated service, I called another plumber first.  Not only did this first plumber make me wait all day for his constantly postponed arrival, he also wanted to tear out the trees in the front yard, and remove large portions of a garden that was installed,at some expense, last year.  I didn't want to destroy the appearance of my home, or lose mature trees, without searching for some alternative first. 

I went on Angie's List to find another plumber to determine if there were an alternative.  I like using small, local businesses, and DB's has high ratings, so I called.  Dave and Tommy from DB's came to my home during the appointed time (no delays) and analyzed the problem from my perspective as the homeowner.  They found a way to install an entirely new line as the old, burst one was running adjacent and close to several other services to the house, including the sewer line, risking breakage, if the original path into the house were followed in laying a new line.  Also, the builder had installed the incoming water service toward the back of the basement, away from the front of the house.  In other words, there were considerable challenges of distance and location to overcome.  

Dave engaged another company with the technology to assist him with running a new line under the house.  No disturbance to the garden, no mess in the house, resulted in one happy homeowner.   The water line was replaced during one day!  They even saved the patches of grass over the few small holes they dug, and overseeded and laid straw on a larger area. Dave also documented the installation on video and is sending me a copy.  This is great service!!

I am so grateful that for this thoughtful, thorough, and professional work.  I cannot speak highly enough of the work that DB's did and strongly recommend this company.  By the way, DB's estimates are rock solid.  There is no surprise bill at the end, even if there are cost overruns, and the work is guaranteed for 5 years.  What's not to love? 




"
Sewer replacement Inside and out
Team at our new locations ribbon cutting
Expansion tank with new venting
New pipe continued
Whole house re pipe

+212

Response time12 hrs
Response rate100%
3 neighbors recently requested a quote
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Basement Waterproofing questions, answered by experts

You don’t always need to install a dehumidifier in your encapsulated crawl space, but it might be a good idea in certain instances. If you notice obvious signs of condensation, mold, or musty smells permeating from your crawl space, a dehumidifier can help. It’s ideal for homes in humid areas.

In a worst case scenario, structural damage like rust on metal beams, rotting wood, and swelling on doors and windows can signal moisture problems that would benefit from a dehumidifier.

The best ventilation for a crawl space is a fully encapsulated crawl space with its own separate ventilation system. If you go this route, ensure you have the proper crawl space code requirements done and dusted before encapsulating your crawl space with a moisture barrier and installing appliances that may not be up to the proper specs.

Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. The chances of mold developing depend on several factors, including the severity of the damage and how quickly the area is cleaned and dried. To prevent mold, you must act quickly—ideally within the first 24 hours. Clean up all water and thoroughly dry the affected area. If the damage is extensive, you were unable to address it immediately, or you suspect mold has already started to grow, it is best to assume it is present and hire a professional mold inspector or removal expert to assess the situation.

Water damage always poses a primary risk of mold and mildew, but growth is not guaranteed. Whether mold develops depends on several factors, including the severity of the water damage and how quickly the area is addressed. To prevent mold, you must act fast—ideally within the first 24 hours. The process involves cleaning up all standing water and thoroughly drying the affected area. If the damage is extensive, the cleanup was delayed, or you suspect mold might be present, it is safest to assume it has grown and contact a professional mold inspector or removal expert to assess the situation.

One handy thing about whole-house dehumidifiers is, once installed, you don’t have to worry about placement or changing the dehumidifier’s position. But if you are using a portable dehumidifier, we suggest keeping it away from walls, vents, and furniture. It needs a central, unobstructed spot with access to lots of air to do its job.

The Rosslyn, VA homeowners’ guide to basement waterproofing services

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