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Best basement waterproofing pros near Williamstown, WV

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  • Average homeowner rating star icon3.7
    Average homeowner rating
  • Verified reviews icon17
    Verified basement waterproofing services reviews

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

Avatar for Groundworks
Groundworks
4.2(
86
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Williamstown, WV and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2003

Free estimates

Warranties offered

"Robby, Logan and Mason at Basement Authority did a wonderful and professional job for us. They were on time, answered all of our questions and made sure that we were informed and comfortable with all the steps taken during our project (crawl space encapsulation). I would highly recommend them."
Foundation
Foundation
Foundation
Concrete
Concrete

+15

Response time1 day
139 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Alford Foundation and Crawl Space Repair
Alford Foundation and Crawl Space Repair
3.7(
120
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Williamstown, WV and surrounding areas

Approved

In business since 1963

Free estimates

Emergency services offered

"Alford had waterproofed my basement 2 years ago & I've been very pleased with that project. This time, a mouse had gotten in thru an open garage door when weather started getting cold, and had found a hole in a cinder block wall and had babies! I had already trapped and killed 5 before calling Alford. The rep was very polite, professional, knowledgeable, etc. He quoted me a price which was very reasonable but I decided to wait & see...it's been 6 days since last one killed & I still have traps set throughout the house but if I have any further issues, I would not hesitate to call Alford!"
Encapsulation and Waterproofed Crawl Space
Dirty crawl space with improper lining
CleanSpace Liner and SmarJacks
CleanSpace Liner
Dirty, vented crawl space

+5

Response time1 day
131 neighbors recently requested a quote
Recommended by79%of homeowners
Avatar for Tri-State Crawlspace Repair and Building Efficiencies LLC.
Tri-State Crawlspace Repair and Building Efficiencies LLC.
5.0(
5
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Williamstown, WV and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

"Went above and beyond what was required of them. I am 64 years old and live alone and he has been here twice and his men have been here once working. I had problems with a pipe leaking under my home and he sat down at my kitchen table with his laptop and hunted a repair man for me call them up himself got quotes and set up an appointment that he absolutely did not have to do to help me out because I didn't know what to do or who to call. He has come and talk to me trying to help me get my issues fixed and if it was something they couldn't do, help me find other people that would. They set up my dehumidifier, blocked off vents and went above the job of what they were required to do to help me out. He has sent me text messages after the jobs to check and see if I needed anything. I would highly recommend the company to do any work.He has truly worked with me to get things and problems taking care of that being a 64-year-old female alone that could not have done on her own. Thank you"
Response time6 hrs
Response rate97%
19 neighbors recently requested a quote
Tri-State Crawlspace Repair and Building Efficiencies LLC.
5.0(
2
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Williamstown, WV and surrounding areas

Approved

In business since 2024

Free estimates

Credit card accepted

We are committed to excellence in every aspect of our business. \nWe uphold a standard of integrity bound by fairness, honesty, and personal \nresponsibility. Our distinction is the quality of service we bring to our customers. \nAccurate knowledge of our trade combined with ability is what makes us true \nprofessionals. Above all, we are watchful of our customers' interests and make \ntheir concerns the basis of our business.

22 neighbors recently requested a quote
Avatar for Alford Home Solutions Inc
Alford Home Solutions Inc
4.4(
70
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Williamstown, WV and surrounding areas

In business since 1963

Free estimates

Emergency services offered

"EXCELLENTLY! Couldn't have asked for a better experience and amazing sun room! Windows and screens can be removed for easy cleaning. New flooring is waterproof in case it rains and we aren't home to close windows. Demo was one day/finished the next! On time/ professional/ amazing finished product! We love it!!!"
Termite shelter tube hanging from floor joist.
Termite Damage to floor joist, rim joist and sill plate.
Termite and Moisture Damage to wood in crawl space.
Concrete Work
Recommended by90%of homeowners
Avatar for Home Improvements Professional Experts
Home Improvements Professional Experts
4.4(
13
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Williamstown, WV and surrounding areas

In business since 2008

Free estimates

Small jobs welcome

"He's done a couple of projects for me. The work he does is good, but the challenge is getting him to complete things in a timely manner. I had a bathroom leak a couple of months ago, and he tore my bathroom apart to repair the leak, but then never came back to put it back together, and never showed despite many calls."
Kitchen Makeover
Kitchen Make Over
Kitchen Make Over
Kitchen Make Over
Bathroom Makeover

+6

Response time1 day
Recommended by100%of homeowners
Avatar for Sewer & Drain Specialists
Sewer & Drain Specialists
4.4(
33
)
Basement Drainage Channels - Repair

Serving Williamstown, WV and surrounding areas

In business since 2018

Free estimates

Emergency services offered

"They came out to check on a clog that turned out to be roots in the sewer pipe. They knew exactly what to do and the guys were super nice. They explained everything and they performed their work professionally. The customer service was perfect. I will be having them back to replace the sewer pipe under the basement floor with full confidence. I would hire them again for any plumbing job in the future."
Msl
Msl
Msl
Msl
Msl

+39

Response time5 hrs
Recommended by90%of homeowners
Showing 1-10 of 23
Basement Waterproofing FAQs, answered by experts

You should plan on waiting at least a year and ideally two to three years after construction before finishing your basement. This will give the foundation time to settle in response to the weight of your home and the expansion of the surrounding soil. You can then repair your foundation and seal any cracks as needed before finishing it to reduce your risk of future leaks or other issues.

Yes, usually you will need some kind of vapor barrier on the exterior walls when the framing is attached to concrete and masonry surfaces.

The cost of basement waterproofing is $4,950 for the average homeowner. However, you could end up paying between $600 and $14,000, depending on factors like basement size, waterproofing method, and the region you live in. 

If you live in an area with heavy rainfall, you might be paying more for waterproofing than if you lived somewhere drier since waterproofing contractors would be in high demand. Likewise, a 500-foot basement costs between $2,500 and $5,000 to waterproof, but that price rises significantly for a larger basement.

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.

Although the two terms are closely related and often used interchangeably, pier and beam foundations and crawl spaces are different things. A pier and beam foundation is made up of concrete piers and wooden beams and creates a space under the home known as a crawl space. There are several types of foundations that create crawl spaces, often collectively known as “crawl space foundations,” but the crawl space itself is separate from the foundation. 

The Williamstown, WV homeowners’ guide to basement waterproofing services

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