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Best basement waterproofing pros near Dahlgren, VA

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    Average homeowner rating
  • Verified reviews icon30
    Verified basement waterproofing services reviews

Top-Rated Basement waterproofing pros in Dahlgren - Updated Nov 2026

Avatar for NV Waterproofing & Foundation Repair
NV Waterproofing & Foundation Repair
4.5(
189
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Dahlgren, 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%
31 neighbors recently requested a quote
Avatar for Managed Services Group, LLC
Managed Services Group, LLC
4.8(
43
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Dahlgren, VA and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"We had astronomical winter heating bills in the first winter in our new (old) home. I hired Shane and his team to install a vapor barrier in my crawlspace, insulation in my basement and to replace my crawlspace doors which were deteriorated and lacked insulation. The quote process was thorough but quick. They scheduled the work quickly as well. On install, they literally unearthed a mountain of construction debris that had collected under the house for who knows how long. They completed the job in just a couple of days and the results were more than impressive. We also chose to replace our windows and the result of both jobs brought our energy bill down by more than 50%. All-in-all we were thrilled with the outcome of the work with Managed Services Group and would highly recommend them to others. Priced fairly and flexible on scope. These guys just get it."
Hanging the Dehumidifier
Hanging the Dehumidifier
Clean
Attic Entrance
Crawlspace Access

+62

Response time2 days
14 neighbors recently requested a quote
Recommended by82%of homeowners
Avatar for JES Foundation Repair
JES Foundation Repair
4.0(
760
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Dahlgren, VA and surrounding areas

Approved (Corporate)

In business since 1993

Free estimates

Warranties offered

"JES Foundation Repair did a tremendously wonderful job in waterproofing our basement and installing basement gutters. Nick, James, Jaiden, Jaquan, and Tomarra were very conscientious and considerate. Very skilled and understanding. A+plus plus!!!"
Protect Your Basement
Protect Your Basement Before & After
Correct Your Wet Basement
Waterproof Your Basement
Protect Your Concrete Before & After

+16

239 neighbors recently requested a quote
Recommended by74%of homeowners
Avatar for '58 Foundations
'58 Foundations
3.5(
35
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Dahlgren, VA and surrounding areas

Approved

In business since 1958

Free estimates

Warranties offered

"We live in Potomac Md and utilized â  58 Foundations for the installation of a sump pump, french drain and various other water damage prevention measures. Sheldon was our technician and he was absolutely exemplary. Completely honest, extremely thoughtful, did exactly what he said he would do and did it very well . I can be a pretty tough customer and Sheldon was one of the best people I ever dealt with. We have had some very persistent issues with water around the house. He thoughtfully addressed each problem and to the extent there were any issues, he identified the issue and dealt with it thoroughly. I would highly recommend Sheldon and â  58 Foundations."
Basement Waterproofing
Basement Waterproofing
Waterproofed Basement
Basement Waterproofing
Crack in Basement Floor

+18

Response time1 day
7 neighbors recently requested a quote
Recommended by85%of homeowners
S&S Waterproofing and Foundation Repair
5.0(
2
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Dahlgren, VA and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"This is the second time that I have used S&S Waterproofing and Foundation Repair. The first time was to fix very large sink holes that were opening up in my front yard, apparently due to underground collapsed drainage piping. This time, when I contacted Steve I asked if they did retaining walls. Steve came to look at the job. I immediately expressed my concern with my limited budget, which Steve completely understood. He offered several options on how to complete the job within my budgetary constraints. We hired S&S Waterpoofing and Foundation Repair to do the job. During each phase of the job, Steve sent me photos of the job progression. He answered any questions that I had almost immediately via text message. Most importantly, he also made sure that my wife was onboard with anything that they were doing. Apparently he knows who controls the money and who the boss is! LOL! Additionally, during the job Steve identified issues with a previous contractors work and addressed those for me as well. Steve is very concerned with customer satisfaction, that is incredibly important to me and my wife! The end result was a beautiful retaining wall. The only thing better than the beauty of the wall is how well it works, drainage is completely handled with ease, even during bad rainstorms! When visitors come to the house, they all ask who built the new wall because it looks incredible! Thank you to Steve and his crew for doing such an amazing job! I am sure this is not the end of our relationship, I will be calling Steve for any of my construction needs in the future! Finally, I just wanted to say, I am the type of person that has anxiety with these types of situations, due to the cost issue, my personal lack of knowledge, and an inability to be able to see the end result before it's accomplished. It is incredible to have confidence in someone doing the work. Someone that keeps me updated, keeps within my budget, makes customer service a top priority. Steve, I can't say thank you enough!"
Foundation Repair
Foundation Repair
Foundation Repair
Foundation Repair
Interior Waterproofing

+12

Response time40 mins
Recommended by100%of homeowners
Avatar for Crawl Space Brothers- DC
Crawl Space Brothers- DC
3.4(
5
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Dahlgren, VA and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

Crawl Space Brothers is a family-owned company proudly serving Charlotte and nearby neighborhoods, including South End, Dilworth, SouthPark, Myers Park, and Madison Park. Our team specializes in crawl space repair, crawl space encapsulation, foundation repair, basement waterproofing, drainage services, insulation installation, and moisture control. From standing water and mold prevention to repairing foundation cracks and restoring wet basements, our tailored building restoration solutions protect your home’s safety and value. With years of experience, proven techniques, and trusted service, we deliver reliable, long-lasting results. Schedule a free inspection today and discover why Charlotte homeowners rely on Crawl Space Brothers.

Crawl Space Brothers
CRAWL WATERPROOFING
CRAWL WATERPROOFING
CRAWL WATERPROOFING
Crawl Space Brothers

+5

1 neighbors recently requested a quote
Avatar for S&S Waterproofing And Foundation Repair
S&S Waterproofing And Foundation Repair
4.9(
39
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Dahlgren, VA and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"We were very pleased with the foundation waterproofing work done for us by S&S Waterproofing. They were responsive to our calls, patient with our questions, and prompt with their service. The crew worked hard and efficiently. It was a big job, and required a lot of digging. They managed the work site well, and at the end of the project, they cleaned everything up nicely, replanted the bushes we wanted to have replanted, sowed grass, and spread down appropriate quantities of straw. We recommend them highly."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Response time7 hrs
Recommended by100%of homeowners
Avatar for Ernest Waterproofing
Ernest Waterproofing
4.4(
61
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Dahlgren, VA and surrounding areas

In business since 2005

Free estimates

Emergency services offered

"We were scammed by another waterproofing corporation that failed the Fairfax County inspection. Ernest Waterproofing came and saved our house from the mess the other company left. At the time of the inspection, the county inspector completed their work. They were on time, clean, and professional. We are grateful we did business with them."
Ez Breath
Door Drain
French Drain With Vapor Barrier
Exterior Excavation
Waterproofing Membrane

+9

Response time1 day
Recommended by95%of homeowners
Avatar for Plumb Magic, LLC
Plumb Magic, LLC
4.6(
87
)
Basement Drainage Channels - Install

Serving Dahlgren, VA and surrounding areas

In business since 2009

Emergency services offered

Credit card accepted

"Entire process was excellent.  I realized shortly before the basement drywall installation was scheduled that this plumbing was outside the scope of my DIY capabilities.  Plumb Magic was very quick to bid the job and, once they understood my urgency, arrived the next morning with two extremely capable plumbers who worked a very long day to get the work done.  They were extremely professional, knowledgeable, and willing to explain the code requirements of the plumbing to me.  I was amazed at the job they accomplished in one day.  I am a very happy customer who now knows to never again entertain the idea of doing plumbing myself.  I will absolutely use Plumb Magic again.
"
cusstom shower
Recommended by87%of homeowners
Showing 1-10 of 38
Basement Waterproofing FAQs, answered by experts

As the first layer of water protection for your roof deck and the building materials below, underlayment is designed to prevent water damage, so it’s okay if it gets wet. However, you shouldn’t rely solely on underlayment for protection. If rain interrupts your roof project and you have all of the underlayment down, you’ll likely be fine, but you should install shingles over that layer as soon as possible, as long-term exposure can lead to water damage.

While "dry" mode on your AC can help reduce humidity levels to some extent, it may not be as effective as a dedicated dehumidifier, especially in areas with extremely high humidity or larger spaces. Dehumidifiers are specifically designed to remove moisture from the air more efficiently, making them a better choice for tackling persistent humidity issues.

Yes, the air from a damp basement can travel up into your living area through a process called the stack effect, so moisture, mold spores, and other debris in your basement air can all decrease your indoor air quality on your main floors. Additionally, damp basements can promote the rotting of building materials, which can damage flooring, insulation, and framing on your first floor in addition to materials in the basement.

Standard homeowners insurance policies may cover basement water damage or flooding, but only if it is caused by a sudden and accidental event that is a covered peril, such as a burst pipe or a failing appliance. Damage caused by natural flooding from extreme weather, groundwater seepage, or heavy rain is typically excluded and requires a separate flood insurance policy. Some insurers also offer an optional water backup endorsement for issues like sewer backups. Review your policy or speak with your agent to understand your specific coverage.

A sewage smell in your crawl space is usually from a damaged or clogged pipe leaking sewer gasses or actual sewage underneath your home, but there are some other common causes. Moisture, from poor or damaged encapsulation or a malfunctioning sump pump, can harbor mold and bacteria, causing a musty smell. Pests can also get stuck in your crawl space and die, which causes a sewage-like odor.

The Dahlgren, VA homeowners’ guide to basement waterproofing services

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