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*The Angi rating for Basement Waterproofing companies in Westminster, 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 Westminster, 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 July 09, 2026

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

Avatar for Crawlspaces and More
Crawlspaces and More
4.7(
84
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Westminster, SC and surrounding areas

Approved

In business since 2005

Free estimates

Warranties offered

"They had to take out a portion of my front wall which was not planned on, and the conic quality of the concrete was not as good as I thought it should be they destroyed the brick wall that they said they would be able to save and I think they also damaged an additional plumbing line, which I’m going to have to have repaired But we did get the leaking stopped, which was the big part of the problem they had to dig up the entire front foundation down to the 8 foot footer and re-waterproof the wall put in a French drain system and a new drainage system for the gutter and a sump pump"
Mold Remediation
We install and replace foundation drains to properly seal the basement from the exterior.
Mold Remediation
Basement Waterproofing
Crawlspace Encapsulation

+10

Response time1 day
23 neighbors recently requested a quote
Recommended by92%of homeowners
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Avatar for CDG Waterproofing Services LLC
CDG Waterproofing Services LLC
5.0(
12
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Westminster, SC and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Will & Frank were great. They dug up an area from the outside and installed a French drain that went all the way to my backyard fence. No leak with today?s rain! Works splendidly!"
Commercial bowing wall replacement
NEW JOIST REPLACEMENT
Joist replacement
Joist replacement
Mold remediation and cleaning

+30

3 neighbors recently requested a quote
Recommended by20%of homeowners
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Avatar for Upstate Structural Repair LLC
Upstate Structural Repair LLC
5.0(
11
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Westminster, SC and surrounding areas

Approved

In business since 1999

Free estimates

Warranties offered

"The USR team did a wonderful job for us on our partial encapsulation. I would recommend them highly!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

3 neighbors recently requested a quote
Recommended by88%of homeowners
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Avatar for Groundworks
Groundworks
4.0(
151
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationBasement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Westminster, SC and surrounding areas

Approved (Corporate)

In business since 1986

Free estimates

Warranties offered

",basement water problem very good"
Foundation
Foundation
Foundation
Foundation
Foundation

+13

211 neighbors recently requested a quote
Recommended by75%of homeowners
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Avatar for Johnstone Restorations
Johnstone Restorations
4.6(
47
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Westminster, SC and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"Great company to work with!"
Drying with dehumidifiers and air movers
Water extraction
After 1 pic
After 2 pic
During 1 pic

+12

Response time1 day
1 neighbors recently requested a quote
Recommended by84%of homeowners
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Avatar for '58 Foundations
'58 Foundations
3.5(
40
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Westminster, SC and surrounding areas

Approved

In business since 1958

Free estimates

Warranties offered

"Project is on hold. Also I think I need to get better educated about this project."
Basement Waterproofing
Basement Waterproofing
Basement Waterproofing
Basement Waterproofing
Basement Waterproofing

+5

Response time1 day
1 neighbors recently requested a quote
Recommended by73%of homeowners
Request Quote
Avatar for Xpert Plumbing INC
Xpert Plumbing INC
4.8(
16
)
Basement Drainage Channels - Install

Serving Westminster, SC and surrounding areas

Approved

Super Service Award Winner

In business since 2016

Emergency services offered

Warranties offered

"Quick quote , replaced 2 outside faucets, nice people"
Septic Tank Project
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

Response time7 hrs
Response rate100%
4 neighbors recently requested a quote
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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 Westminster, 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
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Avatar for Crawl Space Brothers- SC
Crawl Space Brothers- SC
3.4(
5
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Westminster, SC and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

Crawl Space Brothers is a trusted family-owned company proudly serving Columbia, SC, and nearby areas, including Irmo, Lexington, Cayce, Forest Acres, Seven Oaks, Sandhills and West Columbia. We specialize in crawl space encapsulation, crawl space repair, waterproofing, vapor barrier installation, moisture remediation, mold removal, sump pump installation, drainage systems, and foundation repair. Our tailored services protect homes from water, humidity, mold, and structural damage. Backed by years of experience, advanced techniques, and our 5-Star Experience with lifetime warranties, we provide reliable, long-lasting results you can trust. Schedule a free inspection today and see why Columbia homeowners rely on Crawl Space Brothers.

Crawl Space Brothers
Crawl Space Brothers
Crawl Space Brothers
Crawl Space Brothers
Crawl Space Brothers

+2

Request Quote
Avatar for Corley Plumbing Air Electric Inc
Corley Plumbing Air Electric Inc
4.1(
5
)
Basement Drainage Channels - InstallBasement Drainage Channels - Repair

Serving Westminster, SC and surrounding areas

Approved (Corporate)

In business since 1986

Free estimates

Emergency services offered

At Corley, we focus on skills and relational training for our technicians to give them all the "tools" that they need to be successful. We use a combination of trade organization training programs, in house trainers, and other outside technical classes. Corley provides quality, state of the art equipment such as electronic leak detection, video pipeline inspection systems, and rolling warehouses. Vehicles stocked with most parts needed for the plumbing and electrical service and repair business. All of this is to offer you the services of the best plumbing, air and electric company in Greenville, SC. Also serving Mauldin, Simpsonville, Travelers Rest, Easley, Piedmont & Marietta, SC. \n

My jobs
My jobs
My jobs
My jobs
My jobs

+10

Recommended by50%of homeowners
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Showing 1-10 of 26
Basement Waterproofing FAQs, answered by experts

Whether to waterproof your basement from the interior or exterior depends on several factors, including your budget.

Exterior waterproofing is generally considered the superior method because it stops water at the source, preventing it from seeping into and damaging your basement walls. This approach offers the most protection, making it ideal if you use your basement for storage.

By contrast, interior waterproofing is often less expensive and requires less labor because the area is more accessible.

For maximum protection against water leakage and moisture, applying waterproofing measures to both the inside and outside is the best solution. However, if you must choose only one, stopping water from the outside is the most effective approach to preserve your foundation and prevent damage.

A leak under your foundation from a water supply line or sewage line is likely to lead to water pooling on certain areas of your property during rainfall, abnormally fast-growing or green grass in certain sections of your lawn, and differential settlement of your foundation, which can result in large foundation cracks, windows and doors failing to operate properly, a wavy or sloping roofline, or damages or irregularities in your interior walls, including cracks and bulging. If it’s a plumbing line embedded in your slab, you’ll also likely notice above-average water bills.

In most cases, yes, because the large majority of basements leak or will have moisture issues at some point, and waterproofing methods can mitigate that risk or eliminate it entirely. Plus, water and moisture issues can be quite problematic, as they can lead to mold growth, rotting of building materials, structural damage, poor indoor air quality, increased electric bills, and other problems.

Overwatering can cause issues like water pooling and drainage problems. To prevent overwatering, monitor your soil levels on a regular basis and change your watering schedule as necessary.

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.

The Westminster, SC homeowners’ guide to basement waterproofing services

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

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