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Verified Reviews for Basement Waterproofing pros in Custer, SD

*The Angi rating for Basement Waterproofing companies in Custer, SD 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 Custer, SD 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 December 06, 2025

Find Basement waterproofing pros in Custer

Avatar for Blackburn Foundation Repair, LLC

Blackburn Foundation Repair, LLC

4.64(
21
)
•Approved Pro

Blackburn Foundation Repair, LLC

4.64(
21
)
•Approved Pro
Customers say: Quality work
87 local quotes requested
33 years of experience

Blackburn Basement Systems has been providing the best in basement waterproofing, crawl space and foundation repair, concrete leveling, and radon mitigation in South Dakota, and Eastern Wy, since 1992. We offer a variety of solutions for the multitude of issues that result from below grade construction throughout South Dakota. Thousands of homes, businesses and government agencies have been serviced by our trained professional installers throughout South Dakota, and Eastern Wy. We are proud to say we have 500 reviews with 4.8 stars!

"Went through them for wall braces which the job was horrible. Then the final price was 3000 more then what my quote was. I do not recommend them for a first choice. "

Matt W on November 2025

Blackburn Basement Systems has been providing the best in basement waterproofing, crawl space and foundation repair, concrete leveling, and radon mitigation in South Dakota, and Eastern Wy, since 1992. We offer a variety of solutions for the multitude of issues that result from below grade construction throughout South Dakota. Thousands of homes, businesses and government agencies have been serviced by our trained professional installers throughout South Dakota, and Eastern Wy. We are proud to say we have 500 reviews with 4.8 stars!

"Went through them for wall braces which the job was horrible. Then the final price was 3000 more then what my quote was. I do not recommend them for a first choice. "

Matt W on November 2025

Avatar for Environmental Air Solutions, Inc.

Environmental Air Solutions, Inc.

4.00(
4
)

Environmental Air Solutions, Inc.

4.00(
4
)
Customers say: Quick response
17 years of experience

We offer a wide range of dependable services, such as air testing and mold control. With experienced and professional air quality consultants, you can count on us to make the air you breathe healthier and safer.

We offer a wide range of dependable services, such as air testing and mold control. With experienced and professional air quality consultants, you can count on us to make the air you breathe healthier and safer.

Avatar for Rapid Foundation Repair Inc

Rapid Foundation Repair Inc

4.91(
11
)

Rapid Foundation Repair Inc

4.91(
11
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Rapid Foundation Repair is a professional trained, Black Hawk, South Dakota based foundation repair and waterproofing contractor that specializes in the installation of steel foundation products and basement waterproofing products. We serve South Dakota and sections of Wyoming. For all foundation repair South Dakota and Wyoming, Rapid has your back. For any basement waterproofing South Dakota and Wyoming, Rapid has you covered there too! For all common problems related to these issues, you can call us.

"First of all, Nathan called me back, which doesn’t happen that often with contractors around here! Their price was very reasonable and I didn’t feel that I was being ripped off. The work was professional and timely. Won’t know until winter/spring if fixed problem but I’m confident it did or they will make it right."

Denise B on June 2018

Rapid Foundation Repair is a professional trained, Black Hawk, South Dakota based foundation repair and waterproofing contractor that specializes in the installation of steel foundation products and basement waterproofing products. We serve South Dakota and sections of Wyoming. For all foundation repair South Dakota and Wyoming, Rapid has your back. For any basement waterproofing South Dakota and Wyoming, Rapid has you covered there too! For all common problems related to these issues, you can call us.

"First of all, Nathan called me back, which doesn’t happen that often with contractors around here! Their price was very reasonable and I didn’t feel that I was being ripped off. The work was professional and timely. Won’t know until winter/spring if fixed problem but I’m confident it did or they will make it right."

Denise B on June 2018

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Basement Waterproofing questions, answered by experts

Topical sealers adhere to the surface of concrete to create a protective layer. In many cases, this is all you need for concrete that sees light to moderate traffic, such as your basement. Penetrating sealers, on the other hand, bond with the free lime in the top layer of concrete to form calcium silicate, which prevents liquid from passing through. This type of sealer protects the surface from water, oil, and gasoline spills.

Signs include persistent dampness, mold or mildew presence, musty odors, and visible water stains. If any of these occur, it is advisable to contact a professional for an inspection.

Yes, water coming up from the floor should be treated as an emergency. If you're unable to either identify or stop the source of the water on your own, contact an emergency plumber right away. In addition to harming your flooring, standing or pooled water can lead to water-damaged concrete.

Crawl space foundation problems can stem from a few different issues, but the most common are moisture and water problems and soil instability. Moisture and water issues are often a result of poor drainage, which can lead to water intrusion and soil expansion and contraction, leaving your foundation under added stress. A few things can cause soil instability, including poor drainage, karst landscapes and resulting sinkholes, and poorly compacted soil during construction.

Flooded basement cleanup can take anywhere from a few days to several weeks, depending on the extent of water damage, the type of water involved, and the need for repairs or mold remediation. Severe cases with structural damage or extensive mold may require longer timelines. Quick action and professional help can speed up the process and reduce overall damage.

The Custer, SD 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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