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"I wish I could give Innovative Basement Authority a negative rating. Run away from this company as fast as you can. Beware- they are changing their name to Ground Works. Probably because of all the negative reviews. We paid a substantial amount of money to install one of their basement systems after having water problems. The initial sales guy was a very high-pressure seller, trying to get us to sign a contract the same day he came out. Fast forward a year. They told us they needed to come out for an inspection. The sales guy ?found? $40,000 work of additional work that was ?urgent?. He used scare-tactics and tried to convince us we needed to sign on the dotted line immediately. Because of course mold is going to make my family sick. It seemed sketchy to me, but I was able to get the guy to leave without us signing that day. I immediately called our trusted home inspector, and he said the sales guy was trying to sell us things we did not need. He also said he had talked to others"

Meghan _ on October 2025

Groundworks ensures your home in North Dakota stays safe and healthy with expert foundation repair, concrete lifting, and crawl space services. Contact us for a free inspection and estimate!

"I wish I could give Innovative Basement Authority a negative rating. Run away from this company as fast as you can. Beware- they are changing their name to Ground Works. Probably because of all the negative reviews. We paid a substantial amount of money to install one of their basement systems after having water problems. The initial sales guy was a very high-pressure seller, trying to get us to sign a contract the same day he came out. Fast forward a year. They told us they needed to come out for an inspection. The sales guy ?found? $40,000 work of additional work that was ?urgent?. He used scare-tactics and tried to convince us we needed to sign on the dotted line immediately. Because of course mold is going to make my family sick. It seemed sketchy to me, but I was able to get the guy to leave without us signing that day. I immediately called our trusted home inspector, and he said the sales guy was trying to sell us things we did not need. He also said he had talked to others"

Meghan _ on October 2025


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
1992 years of experience
Free onsite estimate

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


Pro Concrete Raising

5.00(
2
)
Approved Pro

Pro Concrete Raising

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2018 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"They were quick, did great work and made sure to clean up when they were finished."

Jordan C on May 2023

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"They were quick, did great work and made sure to clean up when they were finished."

Jordan C on May 2023


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


EHM

4.50(
16
)

EHM

4.50(
16
)
Customers say: Quality work
1954 years of experience

EHM is a structural moving and elevating company that also specializes in foundation repair and replacement. We have been working in the Midwest since the Great Floods of 1993. We specialize in severely comprised foundation issues. We can elevate, level, pier or replace a wall or your entire foundation. We do not do mudjacking, waterproofing or minor crack repair.

"I did not get the service that we originally talked about I am very unhappy"

Donna S on August 2021

EHM is a structural moving and elevating company that also specializes in foundation repair and replacement. We have been working in the Midwest since the Great Floods of 1993. We specialize in severely comprised foundation issues. We can elevate, level, pier or replace a wall or your entire foundation. We do not do mudjacking, waterproofing or minor crack repair.

"I did not get the service that we originally talked about I am very unhappy"

Donna S on August 2021



Concrete Leveling questions, answered by experts

You should have at least 4 to 6 inches of compactable base under your concrete slab. Your contractor may recommend more depending on the structure.

Yes. Amongst the four most common types of septic tanks—plastic, fiberglass, concrete, and steel—those made of concrete are the most expensive. This is the case for a few reasons, including the fact that they’re very heavy, so pros have to use specialized equipment to install them. However, they’re also incredibly durable, making the price worth it if it’s in your budget.

Yes, you can seal an old concrete floor as long as you remove stains and repair damage before sealing. Remove everything from the garage and clear the floor throughout with a concrete cleaner and power washing. Fill in cracks larger than 1/8 of an inch wide and remove all grease and rust stains before sealing. Make sure your concrete is fully dried before applying sealer.

It’s best to avoid rain on freshly poured concrete for 48 to 72 hours for the best results, but you’ll see minimal losses of strength as long as your concrete remains dry for five hours after pouring. You can either wait for dry conditions to pour your concrete or cover the area with a tarp to help keep it dry.

Thicker concrete is less likely to crack due to extreme weather changes. At a minimum, concrete slabs should be at least 4 inches, but if you’re worried about the concrete cracking under the weight of heavy machinery or from the freeze-thaw patterns of your climate, you should use even thicker concrete. A professional concrete company near you will be able to advise on the best thickness for your climate and use case.

The Webster, SD homeowners’ guide to concrete leveling services

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