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Verified Reviews for Basement Waterproofing pros in Spearfish, SD

*The Angi rating for Basement Waterproofing companies in Spearfish, 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 Spearfish, 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 October 26, 2025

Find Basement waterproofing pros in Spearfish

Sunken Foundation Solutions

1925 Hill St
4.93(
7
)
•Approved Pro

Sunken Foundation Solutions

1925 Hill St
4.93(
7
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

When it comes to experienced services for foundation wall repair Rapid City, SD can trust, Sunken Foundation Solutions can help. Here are a few reasons to hire us: We take pride in our high-quality, cost-effective work We focus on customer service and satisfaction We're licensed and insured for your peace of mind We offer labor warranties and free quote for our work We extensively train every team member to ensure each project is completed with efficiency and expertise We stay up-to-date on the latest technologies and best practices in our industry Our Sturgis-native owner is on-site for every project

"Bill and his crew exceeded our expectations. Both our water damaged basement and our failing garage foundation required a change in course and they communicated options and provided excellent and economic solutions. They arrived early and stayed late 6 days a week to work around our weather. They provided extras as we went along and worked through some tough weather conditions. The daily communication was the best. Their prices saved us so much money. Their clean-up left our place in better condition than when they arrived. This company is going places. We will use them for any future needs."

Cheryl M on November 2022

When it comes to experienced services for foundation wall repair Rapid City, SD can trust, Sunken Foundation Solutions can help. Here are a few reasons to hire us: We take pride in our high-quality, cost-effective work We focus on customer service and satisfaction We're licensed and insured for your peace of mind We offer labor warranties and free quote for our work We extensively train every team member to ensure each project is completed with efficiency and expertise We stay up-to-date on the latest technologies and best practices in our industry Our Sturgis-native owner is on-site for every project

"Bill and his crew exceeded our expectations. Both our water damaged basement and our failing garage foundation required a change in course and they communicated options and provided excellent and economic solutions. They arrived early and stayed late 6 days a week to work around our weather. They provided extras as we went along and worked through some tough weather conditions. The daily communication was the best. Their prices saved us so much money. Their clean-up left our place in better condition than when they arrived. This company is going places. We will use them for any future needs."

Cheryl M on November 2022

Avatar for Blackburn Foundation Repair, LLC

Blackburn Foundation Repair, LLC

26071 Brower Cir
4.83(
20
)
•Approved Pro

Blackburn Foundation Repair, LLC

26071 Brower Cir
4.83(
20
)
•Approved Pro
Customers say: Quality work
100 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!

"Good job"

Dominik C on September 2024

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!

"Good job"

Dominik C on September 2024

Avatar for Sunken Foundation Solutions

Sunken Foundation Solutions

1925 Hill Street
No reviews yet

Sunken Foundation Solutions

1925 Hill Street
No reviews yet

Specialize in foundation repair, basement waterproofing, lifting sunken foundations etc.. our quality speaks for it self! I Billy Schlosser owner of Sunken Foundation Solutions have been in business for 5 years and am on site for every job

Specialize in foundation repair, basement waterproofing, lifting sunken foundations etc.. our quality speaks for it self! I Billy Schlosser owner of Sunken Foundation Solutions have been in business for 5 years and am on site for every job

Avatar for Environmental Air Solutions, Inc.

Environmental Air Solutions, Inc.

PO Box 9074
4.00(
4
)

Environmental Air Solutions, Inc.

PO Box 9074
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.

Dorian Visionheart Dyer

3560 South Brandon Street
4.80(
5
)

Dorian Visionheart Dyer

3560 South Brandon Street
4.80(
5
)
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

I am a self-taught artist, initially drawn to experiment with pastels and colored pencil, and now working with acrylic on canvas. My art speaks for itself.

I am a self-taught artist, initially drawn to experiment with pastels and colored pencil, and now working with acrylic on canvas. My art speaks for itself.

Showing 1-10 of 12
Basement Waterproofing questions, answered by experts

Interlocking garage tiles made with PVC are the most effective for garages with past issues of humidity and flooding because damp concrete is not suitable for paint. Epoxy coating is also water-resistant and can prevent mold buildup. Finally, porcelain tiles are a wonderful option for wet conditions if your budget allows.

If you don’t wish to dig it out and convert it into a finished basement, you can still encapsulate your crawl space to protect it from damage for an average cost of $5,500. Finishing a crawl space beyond this isn’t really worthwhile, as the low ceilings mean you won’t be able to use the area as living space.

External pressure on the basement wall can cause it to bow inward. Soil, heavy with water saturation, is commonly the main culprit. The soil exerts immense pressure on the wall, causing it to fail, at least partially. This is known as hydrostatic pressure—these situations can occur after rainfall or simply due to regular groundwater presence and may be temporary or more permanent.  

Mold and other fungi love moisture, so the best way to prevent mold growth after water damage is to remove as much moisture as possible. First, find the source of the water or moisture, such as a leak or clogged gutters, and correct the problem. Next, remove standing water, vacuum up puddles with a shop vacuum, and run blower fans and dehumidifiers for 24 to 72 hours. Once you've removed all traces of moisture, disinfect the area using either vinegar or bleach to kill any remaining mold spores.

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.

The Spearfish, 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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