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TRUSTED BY KEYSTONE, SD HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon23
    Verified foundation repairs reviews

Verified Reviews for Foundation Repair pros in Keystone, SD

*The Angi rating for Foundation Repair companies in Keystone, SD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Foundation Repair needs.

*The HomeAdvisor rating for Foundation Repair companies in Keystone, SD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Foundation Repair needs.

Last update on October 31, 2025

Find Foundation repair specialists in Keystone

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 Extreme foundation repair

Extreme foundation repair

P.O.Box 311
4.67(
3
)

Extreme foundation repair

P.O.Box 311
4.67(
3
)
13 years of experience

We are a minority family-owned business we have been in the construction industry for over 35 years so we have seen all so you can trust us. We have integrity we will not run from problems because they always happen this world is not a perfect world. We fix the problem not just put a band-aid on them

"All contract expectation were met to standard."

JIm F on August 2021

We are a minority family-owned business we have been in the construction industry for over 35 years so we have seen all so you can trust us. We have integrity we will not run from problems because they always happen this world is not a perfect world. We fix the problem not just put a band-aid on them

"All contract expectation were met to standard."

JIm F on August 2021

Kelly Construction LLC

14965 Eagle Ranch Rd
No reviews yet

Kelly Construction LLC

14965 Eagle Ranch Rd
No reviews yet

Kelly Construction is a veteran owned business located in the Black Hills area of South Dakota. We love our community and value the time and effort that we take to be of service. We would love to offer you the best contractor free estimate in the Rapid City, SD area. Take a look at the wide range of services we offer for your home or commercial property. Whatever you need done, we are here to help you.

Kelly Construction is a veteran owned business located in the Black Hills area of South Dakota. We love our community and value the time and effort that we take to be of service. We would love to offer you the best contractor free estimate in the Rapid City, SD area. Take a look at the wide range of services we offer for your home or commercial property. Whatever you need done, we are here to help you.

Double Barrel Contracting

21879 Iron Drive
No reviews yet

Double Barrel Contracting

21879 Iron Drive
No reviews yet
9 years of experience

We are a small respectful honest company with big aspirations regarding the future. Visual and professional references Respectful explanations Itemized statement of materials and labor No surprises We will never charge or use anything you don’t need Your property will be left tidy with no debris from the project completed

We are a small respectful honest company with big aspirations regarding the future. Visual and professional references Respectful explanations Itemized statement of materials and labor No surprises We will never charge or use anything you don’t need Your property will be left tidy with no debris from the project completed

marsh masonry

6819 Custer St.
No reviews yet

marsh masonry

6819 Custer St.
No reviews yet
21 years of experience

Small crew for better quality control generally only one other employee, Sub-contract or work directly with homeowner, Mason/Bricklayer for 20 years still very very motivated, projects over $1000 50%deposit usually required.

Small crew for better quality control generally only one other employee, Sub-contract or work directly with homeowner, Mason/Bricklayer for 20 years still very very motivated, projects over $1000 50%deposit usually required.

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Foundation Repair questions, answered by experts

Foundation repairs cost about $5,000, on average. Typically, prices range from $2,200 to $7,800, depending on the type and extent of repairs needed. Cost factors include foundation type, home size, soil stability, accessibility, and the ultimate cause of the problem and what methods and materials are required to fix it.

It can be safe to live in a house with minor foundation problems as long as the issues are checked and monitored by a professional. Minor cracks are rarely a cause for structural concerns, but signs of leaks, sinking, or bulging walls should be strongly scrutinized by a foundation specialist. Similarly, it's always smart to hire a professional when you're concerned about buying a house with foundation repairs.

Yes, all basement floors crack in response to the natural settlement of the soil around them and from concrete shrinkage as it cures, and you’ll see hairline cracks as a result. However, you should keep an eye on your basement floor to see if cracks continue to lengthen or widen or show signs of water intrusion. In any of these cases, the problem is likely not settling or shrinkage, and a professional repair is necessary.

If your foundation is unfinished, has surface damage, or is just plain unappealing, foundation refacing can be another great way to increase your curb appeal and give your foundation a fresh look. Used in conjunction with foundation planting, refacing can completely change the look of your foundation and your home. 

You have different options depending on the scale of repair needed. If you are repairing minor cracks that are between ¼ inch to 1.5 inch wide and less than half an inch deep, a self-leveling polyurethane sealant would be your best choice. Polyurethane sealants dry to the touch within one to two hours. Since they come in a tube applier, you also have the option to complete the repair without emptying out your garage.

The Keystone, SD homeowners’ guide to foundation repairs

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

See all articles

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