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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
144 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
139 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%
26 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.

19 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

Yes, these services often increase home value by preventing moisture-related issues and enhancing the usable space in basements or crawlspaces.

Whether your homeowners insurance covers slab leak repairs depends on your specific policy and the cause of the leak. Many policies cover slab leaks resulting from a covered peril, such as a natural disaster, a falling tree, or pipes freezing and bursting within the slab. However, damage caused by invading tree roots, corrosion, or leaks from appliances may not be covered by a standard policy. It's a good idea to also check your home warranty plan for potential coverage if an appliance is the source. Contact your insurance provider for a full explanation of what your policy covers.

Plan on cleaning your crawl space at least once a year, though twice a year is ideal. During the cleaning, remove any debris or dust and check for potential issues like pest infestations or water damage. The sooner you catch these issues, the easier (and cheaper) it will be to fix them.

Underfloor insulation alone will not cause moisture and mold, but improper installation can. Although the purpose is to seal any drafts, your subfloor still needs ventilation. If you seal the area too tightly and prevent all airflow, this can cause moisture to get trapped. This moisture eventually leads to mold and—if your floors are wood—rotting.

If there is standing liquid on your concrete, remove it before attempting any of the above cleaning methods. For small amounts of water, use rags, a bucket, and a mop. For larger areas of liquid, lay down cat litter or baking soda to soak up the water first. If you have extremely large pools of water sitting on your concrete, break out the wet vac and get to work.

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.