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Best basement waterproofing pros near Irmo, SC

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TRUSTED BY IRMO, SC HOMEOWNERS

  • Average homeowner rating star icon5
    Average homeowner rating
  • Verified reviews icon23
    Verified basement waterproofing services reviews

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

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

Serving Irmo, SC and surrounding areas

Approved (Corporate)

In business since 1986

Free estimates

Emergency services offered

"The team, led by Trevor, and assisted by Kenny, Terrell and Garrett, worked very well together to accomplish the work we needed done to alleviate water coming into our crawlspace. They were courteous, friendly, professional, and did not hesitate to answer all our questions and explain the process thoroughly. Trevor and team brought other problems to our attention which we have decided to have Mount Valley repair also. Trevor and Shawn helped us get the process going to replace floor joist damaged by water. I would recommend Mount Valley if you have foundation issues that need expert repairs!"
Foundation
Foundation
Foundation
Foundation
Foundation

+13

Response time1 day
102 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Cantey Foundation Specialist
Cantey Foundation Specialist
3.6(
97
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Irmo, SC and surrounding areas

Approved

In business since 2011

Free estimates

Warranties offered

"Great work and good customer service! Nick and Sam leveled pool deck concrete slabs, cleaned and sealed seams, and repaired several cracks! Highly recommend and will use their service again for any future services around our home."
WE ARE ONE TEAM
Rotten Wood Replacement
One Team Meeting
Awards
The Gutter Shutter System

+37

Response time2 days
Response rate97%
50 neighbors recently requested a quote
Avatar for Lowcountry Foundation & Crawl Space Repair
Lowcountry Foundation & Crawl Space Repair
3.6(
24
)
Foundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Irmo, 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
78 neighbors recently requested a quote
Recommended by40%of homeowners
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 Irmo, 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

1 neighbors recently requested a quote
Avatar for All Dry Of The Carolinas Inc
All Dry Of The Carolinas Inc
4.3(
48
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Irmo, SC and surrounding areas

In business since 1991

Free estimates

Credit card accepted

"The workers were outrageously good. The guy that did the estimate was under what it should have been and it cost us double the amount, but the guys who did the work were fabulous and made it work. It cost more, but the basement does not have a smell or anything, so I can't blame them for it. They were done in a week. I was embarrassed, there wasn't a speck of dirt when they were done. It was clean as a whistle, and it wasn't like that when they walked in. They were really good. They recommended an electrician, and so even if they didn't do some part, they support you and help you find them. They check up and make sure everything is okay. They call back every time you call them. They did a great job."
Additional Photos
Extension
Multiple extensions
Underground extension with outlet
Before

+4

Recommended by90%of homeowners
Avatar for Vapor-X Crawlspaces
Vapor-X Crawlspaces
5.0(
7
)
Basement Drainage Channels - InstallBasement Drainage Channels - RepairFoundation, Basement or Crawlspace - Waterproofing / Encapsulation

Serving Irmo, SC and surrounding areas

In business since 2023

Free estimates

Emergency services offered

Will beat any competitors crawlspace waterproof pricing! \n\nDo you have moisture in your crawlspace? High energy bills? Want to better the air quality in your household? We can help you! What Vapor-X Crawlspaces brings is a moisture free zone in your crawlspace. Most homeowners spend 70 percent of their lives in their homes, so having a healthy air quality at home is essential for many health reasons. The services we provide are: encapsulations, vapor barriers, dehumidifiers, sump pump, interior and exterior French drain systems, crawlspace clean outs, fresh air systems, and moisture remediation. My name is Sean Williams, I am the founder and owner of Vapor-X Crawlspaces and have been serving homeowners like you for over 6 years. I truly believe making a healthier home is a healthier lifestyle. We are known for an unparalleled commitment to customer satisfaction. With our efficient work and smaller company size, we are able to provide quality services at a fraction of the cost of larger companies. We also offer payment plans so you can get your project completed ASAP. Call NOW for a free inspection and let us impress you.\n

Basement Waterproofing Project
Basement Waterproofing Project
Basement Waterproofing Project
Basement Waterproofing Project
Basement Waterproofing Project

+42

Recommended by100%of homeowners
Showing 1-10 of 43
Basement Waterproofing FAQs, answered by experts

Most houses will have vents in the crawl space. This allows for air passage and energy retention, which in many ways can help control the temperature inside the home. If you are able to consider the cost of a crawl space encapsulation, you may not need your crawl space vents at all. 

Yes, many repair services include reapplying waterproofing and UV-resistant coatings.

The primary reason homes have crawl spaces is so the foundation can reach down below the frost line to avoid dangerous soil movement and structural damage when the ground freezes. They’re more popular in colder climates where the ground freezes down to a few feet, and slabs are most popular in warmer areas where there is no frost line. Crawl spaces also provide a space for utility lines to run where they’re at less of a risk of freezing.

A plastic vapor barrier should completely cover your basement to prevent water from penetrating through the walls. This typically goes before installing insulation to prevent moisture from building up and becoming trapped on the inside of your insulation, where it can collect and lead to mold damage. Installing insulation after the vapor barrier allows for any moisture to exit the walls for better ventilation.

Standing water under your house can threaten its structural integrity. If water pools in your crawl space, it can damage the foundation and the structure above ground, causing wood rot, mold, and other problems. If you have a concrete foundation, standing water under your house can also make your foundation slabs crack.

The Irmo, SC homeowners’ guide to basement waterproofing services

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