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Best basement waterproofing pros near Barnwell, SC

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

Avatar for Groundworks
Groundworks
4.4(
341
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Barnwell, SC and surrounding areas

Approved (Corporate)

In business since 1986

Free estimates

Emergency services offered

"Mount Valley is the epitomy of an honest, fair, reliable, efficient, professional, and customer service oriented company. Our coordinator, Ryan McAlister, was extremely knowledgeable and informative during inspection of our crawl space water issues, and his subsequent repair recommendations. Ryan was like a professor explaining retrofitting encapsulation of the crawl space and basement water issues with a slab, along with discussing such encapsulation during a new build vs. standard floor insulation in a crawl space in a climate above 60% humidity. Fascinating and educational discussion for me as an homeowner with very limited knowledge of the subject. Ryan was patient and is truly an expert. He also provided additional advice on other ground water issues and recommendations for us as homeowners to try, outside the crawl space, in order to save us money. His crew was extraordinarily hard working and diligent, personable and friendly. They did a great job in every detail relative to trench digging, gravel, wrapping, wall insulation, sump pump, dehumidifier, and drainage. Very well done and much appreciated professionalism and expertise. Very impressed with the coordinated team work demonstrated by the whole crew, Damian (foreman), Mac, and David. Very impressive young men. My wife wanted to adopt them and Ryan upon completion of the project, which was done in grueling heat, humidity, and wet conditions. Job well done. Great company. Joe Morrash - Irmo, SC"
Foundation
Foundation
Foundation
Foundation
Foundation

+13

Response time1 day
94 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Lowcountry Foundation & Crawl Space Repair
Lowcountry Foundation & Crawl Space Repair
3.6(
24
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Barnwell, SC and surrounding areas

Approved

In business since 1995

Free estimates

Warranties offered

"Lowcountry Foundation Repair came highly recommended by our contractor and they did not disappoint. The team was AMAZING! Super responsive, professional, very hard working and diligent. The team worked clean and did a gorgeous job on our crawlspace encapsulation. Alex and his team (Francis & Dedric) were THE BEST. We really had a great experience and are so grateful for their expert work. They're really an impressive team."
SmartJack System
After Encapsulation
Response time11 hrs
82 neighbors recently requested a quote
Recommended by40%of homeowners
Avatar for Cantey Foundation Specialists
Cantey Foundation Specialists
4.0(
32
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Barnwell, SC and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"We found Cantey Foundations to be the solution to our sagging floors and cracking walls - even after speaking with some of the other popular alternatives. Our team, consisting of Dallas, Corey, David, Dallas and Alex((2 Dallases),were professional, knowledgeable, polite and efficient. Not only did we see a definite change in the sloping floors, but the cracks closed up and doors stopped sticking. When the crew was done, they cleaned up everything. Although it is only a week since the work, we do not have any concerns because of Cantey's warranty, which guarantees the work for 25 years. We were able to put off other recommended work for a later date, and plan to take advantage of that when our pocketbook allows. I will have no problem calling them back."
Before PolyLevel LIft
New Gutter Shutter System
Concrete Before Columbia, SC
Driveway Level & Lifted
This is just one of the foundation cracks we found on this foundation. It's what we call a stair-step crack.

+137

Recommended by90%of homeowners
Avatar for Hampton Enterprise LLC
Hampton Enterprise LLC
3.7(
9
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Barnwell, SC and surrounding areas

In business since 1989

Free estimates

Emergency services offered

"He was awesome.  He called back, but he was working in Reed field, North Carolina and he could not get to us for a couple of days.  By the time, he got to us we had already gotten the other estimates, and we were pleased with him.  Hampton guy was great.  He was really quick to get back to us, but he had other projects that he had already lined up.  The experience was very satisfactory.  He was very courteous, and prompt.  He was very honest in saying that he cannot get to us, and if we needed to have this work done now, then we need to have to get somebody else.  I appreciated that."
Additional Photos
Additional Photos
Recommended by60%of homeowners
Avatar for Statewide Dirt Works LLC
Statewide Dirt Works LLC
5.0(
1
)
Basement Drainage Channels - Install

Serving Barnwell, SC and surrounding areas

In business since 2018

Free estimates

Emergency services offered

Statewide Dirt Works, LLC ranges in a wide variety of residential and commercial construction projects. We specialize in concrete, clearing, grading, demolition, hauled debris, asphalt, parking lot stripping, building pads, sewer/sewer services, water/water services, water/sewer tie-ins, septic tanks, delivery of rock-dirt-sand-asphalt. We bring all our resources and expertise to get the job done right the first time. We strive to give our customers the best quality work for their hard earned money at an affordable price. We take pride in our work and want to grow with our community.

Recommended by100%of homeowners
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Basement Waterproofing FAQs, answered by experts

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.

Living in a finished basement is acceptable, but only if the space has the proper points of egress and includes smoke and carbon monoxide (CO) detectors to ensure the safety of the occupants. A good way to ensure your finished basement is suitable for use as living space is to get the basement finishing project properly permitted.

While it’s possible to seal a foundation yourself, it’s not recommended, as it’s a tricky and labor-intensive job. Foundation sealing is best left to the pros to save yourself time, remove the risk of doing it wrong, and keeping yourself safe. Call a foundation repair professional near you to see what the job will cost.

Walkout basements cost more than other kinds of basements, and can also increase your risk of leaks as well as a loss of insulation, leading to higher heating and cooling costs. Improperly installed walkout basements may lead to structural issues with your foundation, so ensure you’re working with a contractor who has extensive experience with this kind of basement.

Yes, water and water vapor can seep through cracks in your basement floor, which means you should address all basement floor cracks, even if they don’t indicate structural issues. Sealing settling cracks and shrinkage cracks is a good idea to keep water and moisture outside where it belongs. Doing so can improve your indoor air quality, reduce the risk of mold growth, make your home more comfortable, and help prevent pest infestation.

The Barnwell, SC homeowners’ guide to basement waterproofing services

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