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Verified Reviews for Basement Waterproofing pros in Bonneau, SC

*The Angi rating for Basement Waterproofing companies in Bonneau, SC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

*The HomeAdvisor rating for Basement Waterproofing companies in Bonneau, SC is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Basement Waterproofing needs.

Last update on October 07, 2026

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

Avatar for Groundworks
Groundworks
4.3(
84
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Bonneau, SC and surrounding areas

Approved (Corporate)

In business since 1986

Free estimates

Warranties offered

"Hello, we recently got an evaluation. Dylan was great and knowledgeable. He even found a diagnosis underneath our house about water running that we weren’t aware. He, with his awesome customer service, made us feel comfortable and confident on having him checking around our place to get our estimate done. Thanks s much Dylan and Mount Valley Foundation."
Foundation
Foundation
Foundation
Foundation
Foundation

+13

94 neighbors recently requested a quote
Recommended by66%of homeowners
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Avatar for Carolina Energy Conservation, LLC
Carolina Energy Conservation, LLC
4.2(
118
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Bonneau, SC and surrounding areas

Approved

In business since 2008

Free estimates

Small jobs welcome

"Very fast no mess looks amazing!"
Kitchen Solatube Before
Kitchen Solatube After
Leaky Can Light
Sealed Can Light
Master Bedroom (Before Solatube Install)

+22

Response time1 day
121 neighbors recently requested a quote
Recommended by90%of homeowners
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Avatar for Lowcountry Foundation & Crawl Space Repair
Lowcountry Foundation & Crawl Space Repair
3.6(
24
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Bonneau, SC and surrounding areas

Approved

In business since 1995

Free estimates

Warranties offered

"My project was crawl space renovation. Devante and Mario were hard working and did a very meticulous job on our crawl space renovation. My wife said to tell you these guys deserve a promotion."
SmartJack System
After Encapsulation
Response time11 hrs
79 neighbors recently requested a quote
Recommended by40%of homeowners
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Avatar for CNT Foundations
CNT Foundations
4.5(
37
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Bonneau, SC and surrounding areas

In business since 2003

Free estimates

Credit card accepted

"They were professionals from the estimate to the planning through the repair. Worked **** ** project to ensure my satisfaction."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+270

Recommended by84%of homeowners
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Avatar for Cantey Foundation Specialists
Cantey Foundation Specialists
4.0(
32
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Bonneau, SC and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"Everyone we dealt with from Cantey Foundation Specialists were very professional, timely, and caring throughout the entire process from job estimate to the actual work done. While the work done did not bring all areas back completely to their original states, with the exception of one area, they were all pretty close. Realistically, It's very difficult to fix in two days what has taken place over a period of years. I am very satisfied with the job done. Grayson (job estimator) and Estevan (crew leader) were very helpful and great to work with through the entire process."
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
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Avatar for The Fireplace Doctor
The Fireplace Doctor
3.9(
1,190
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Bonneau, SC and surrounding areas

In business since 1993

Emergency services offered

Credit card accepted

"Bought this in the spring to use before burning in the fall/winter.  Ended up moving in December and did not use it.
I'm wasn't sure how to score a company I didn't use (and not reviewing isn't really an option), so I just picked a score consistent with the average rating.
"
Recommended by78%of homeowners
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Avatar for JHS Construction & Paving
JHS Construction & Paving
4.4(
12
)
Basement Drainage Channels - Install

Serving Bonneau, SC and surrounding areas

"Replaced 3 sections of driveway with new concrete The work was completed efficiently and professionally. Finished product was excellent. I would definitely recommend JHS."
Tree Service Project
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+17

Response time7 hrs
Recommended by83%of homeowners
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Avatar for CNT Foundations, LLC
CNT Foundations, LLC
3.9(
67
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Bonneau, SC and surrounding areas

In business since 2004

Free estimates

Warranties offered

"CNT has performed multiple foundation repairs for me with excellent results. The work was completed fast and the jobs were well priced. I would recommend CNT to anyone with foundation issues."
Chimney Repair
Response time1 day
Recommended by81%of homeowners
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Avatar for A Plus Handyman Service
A Plus Handyman Service
4.4(
7
)
Basement Drainage Channels - Install

Serving Bonneau, SC and surrounding areas

Free estimates

Credit card accepted

"It was great. Thank you guys for your dedication and top quality work y'all did. I will be using this company again and again. A-Plus Service"
Working on the deck
Eight doors
Painting - Interior Project
Before pictures
Deck repair and painting

+60

Recommended by85%of homeowners
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Showing 1-10 of 25
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.

Crawl spaces are the more desirable option overall because they provide additional space for storage and utilities, but they are more expensive to install and maintain. Slab foundations are considered a better option in warmer climates where the depth of the frost line isn’t an issue because they’re more affordable, but crawl spaces are better in areas where the frost line is deep or where flooding can be an issue.

The best basement waterproofing method depends on the specific issue causing the water intrusion. For minor problems, simple solutions like installing a properly functioning gutter system to direct runoff away and grading the soil to slope away from your foundation can be effective.

If you have more significant water problems, the solution will need to be more robust:

  • For standing water on the basement floor, a floor drain or a sump pump system may be the best solution.

  • For water pooling around the foundation, installing an exterior French drain can intercept water before it reaches the basement walls.

Other effective waterproofing methods, which can be used depending on your home's specific needs, climate, and soil type, include sealing the interior walls, landscape alteration, installing interior drainage systems, and using a dehumidification system to control moisture levels.

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.

Anything having to do with the structure of your home, such as raising the ceiling, is usually the most expensive part of finishing a basement. Another project component that could be a surprisingly high expense is adding an exterior entrance. 

The cost of a walkout basement can be anywhere from $5,000 to $35,000.

The Bonneau, SC homeowners’ guide to basement waterproofing services

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

See all articles