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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 Merrifield, 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 Merrifield, VA and surrounding areas

Approved

In business since 1997

Free estimates

Emergency services offered

"They fixed two leaking cracks in the basement exteriorly in May 2019. Also, they regraded the patio so that the rain water runs away from the house. I am happy with their works. I am glad my basement is dry now. Thank you."
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 Merrifield, 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
26 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 Merrifield, VA and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Jeff came to give us cost estimate for fixing our basement leaking issue. He was one of most knowledgeable professional I ever meet during my initial move in to new house. He explained why it is leaking and what we can do about it in very detailed logical explanation with clear diagrams to assist my understanding. Jeff said to fix these issues if it still leaks than come back for further assessment. It was great help, and I can really work on source of this problem now. I will never use any other waterproofing company other than All Aspects Waterproofing, LLC."
Response time1 day
23 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 Merrifield, 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
33 neighbors recently requested a quote
Recommended by77%of homeowners
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 Merrifield, 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 3 PROS Basement System
3 PROS Basement System
4.0(
39
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - Install

Serving Merrifield, VA and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

3 Pros Basement Systems uses proven basement waterproofing, sump pump and crawl space encapsulation solutions to help eliminate wet basements and nasty crawl spaces. We can help make the air in your home drier, healthier and more comfortable. We offer free inspections and will focus on the science of your home to design a project to improve wet basements, cold floors, drafty rooms, nasty crawl spaces and high energy bills. We have worked in 1000's of homes across Northern Virginia and West Virginia and always enjoy clients who call us days after service to let us know how much they can feel the differences in their home.

Crawl Space Before Picture
Finished!
Beautiful Encapsulated Crawl space
SaniDry Sedona
Spray Foamed walls

+32

Response time1 day
108 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Lux Foundation Solution
Lux Foundation Solution
4.5(
35
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Merrifield, VA and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"I hired Alex three years ago to stop the water from coming into our Florida room. After going threw four other contractors he was the only one that took care of the problem. Now we hired him again 7/19/18 to take care of the water coming into our basement. He sent out Tyrik, Corey, Nathan, Casey J;mony, Cody and Joe. They were very professional and and kept informing my husband of the progress they were making. At the end Tyrik explained everything they did and told us if we are not happy with any of the work they will fix it right now."
Finished project with liquid coated walls
VDOT Salt Dome
Finished Dome
Waterproof membrane
Additional Photos

+36

Response time10 hrs
Response rate100%
22 neighbors recently requested a quote
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Basement Waterproofing questions, answered by experts

Yes, it is possible to over-dehumidify a house by removing too much moisture from the air. This can create an overly dry environment that negatively affects those with respiratory or skin issues, and may cause your skin, hair, and sinuses to feel dry. However, this is unlikely to happen with most modern dehumidifiers, as they are equipped with moisture sensors and adjustable settings. These features allow the unit to pause automatically when the desired humidity level is reached, preventing the air from becoming uncomfortably dry. In contrast, older or more basic dehumidifiers left running for too long could potentially over-dry the air. To avoid this, aim for a balance between removing excess moisture and maintaining a comfortable environment. You can often monitor your home's humidity levels using a modern thermostat for guidance.

No, your basement dehumidifier doesn’t need to be on 24/7. While it’s an excellent tool for tackling damp, musty air, especially in humid seasons, leaving it running nonstop can backfire. Over-drying the space can mess with your sinuses, warp wood, and even crack certain materials. Instead, only use your humidifier when moisture levels rise above 50%, and then give it a break when the humidity levels drop.

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.

In nearly all cases, you are required to install a vapor barrier in your crawl space. However, local regulations will change based on the local climate and the crawl space's susceptibility to moisture. Even if a vapor barrier is not legally required, it is often a good idea to keep your crawl space dry.

Whether to waterproof your basement from the interior or exterior depends on several factors, including your budget.

Exterior waterproofing is generally considered the superior method because it stops water at the source, preventing it from seeping into and damaging your basement walls. This approach offers the most protection, making it ideal if you use your basement for storage.

By contrast, interior waterproofing is often less expensive and requires less labor because the area is more accessible.

For maximum protection against water leakage and moisture, applying waterproofing measures to both the inside and outside is the best solution. However, if you must choose only one, stopping water from the outside is the most effective approach to preserve your foundation and prevent damage.

The Merrifield, VA homeowners’ guide to basement waterproofing services

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