We had a radon mitigation system installed and have no regrets. Working with Blackburn was easy and…read morethe installer, DJ, was excellent. He made sure we understood the process, how it would be set up, and answered all questions as he went along and after. The price was comparable to others that install mitigation systems as well. Highly recommend.

Overpriced, poor workmanship, did not complete work, did not show up on date quoted, basement…read morecondition more dangerous than before. We had another contractor repair mistakes.

Reliable and friendly. Make sure payment options are discussed up front and be forward on asking…read moreabout all possible issues that could arise. Be thorough and double check work and invoices. Casey was very helpful, even providing pictures of possible problems.

You will not find a less responsive company anywhere in scity. They do not stand behind the…read morequality of their work. Their work comes with the red-light warranty.

We got this treatment done at our mother's home JUST IN TIME right before the historic September 30…read more2026 8" rainfall. Flash flooding all over the metro. In past years, we would have been dealing with water in the basement. The Thrasher system, installed just ONE WEEK AGO, kept the basement dry today. We can't say enough about this company, their work and their fair dealing. A+ RATING. My brother Art was voluntold by our father in 1972 to dig and work on the crack. We were both thrilled with the permanent fix done by Thrasher in 2026!

Very professional team. Completed work in a timely way. Here's to a dry basement going forward!read more

Both men who were helping to correct our sidewalk problem were industrious, professional, and…read morecourteous in accomplishing their tasks. We'd give them a TOP RATING. Regarding our first two attempts to complete your survey on line, however, we felt very compromised. Finally, this form is doable! Thanks! B. & J. English

The crew called and could actually come a couple days early if we were prepared. They showed up the…read morenext day, went over all the details so we knew everybody was on the same page regarding the work to be done. They.got right to work and did an outstanding job, not only did they work hard but very personable men. The materials that they used so we are confident they will last.They also went above and beyond and helped my husband with some dirt work that needed to be done around the poured retaining wall. We are confident our retaining wall will remain standing through the life of the concrete. It sure puts our mind at ease! Thank you!

Ivan and Jayden did an excellent job. They were friendly, very prompt and explained everything they…read morewere doing. I would highly recommend them.

Donald and Guiles came to complete a job at my home in Granby, MA in September 2026. They were…read moreextremely professional from start to finish. They arrived on time and took the time to thoroughly explain everything before beginning the project. Throughout the process, they kept me informed and made sure I understood what was happening every step of the way. They worked slowly, carefully, and thoughtfully to ensure the project was completed without causing any damage to my concrete slab. They also pitched my slab perfectly, which was very important to me. I truly appreciate the care, attention to detail, and professionalism they put into the entire job. I would highly recommend them!

Eric and his team were amazing! Knowledgeable and friendly! It's hard having ground water problems…read morebut Eric walked me through every step and answered all my questions. The gentleman on his team were all friendly and hard working. It was done in a snap! Plus he even called to check everything was going good after the next heavy rains. I do and will always recommend Dakota Basement Systems! Thank you

From the owner: Dakota Basement Systems (DBS) is a pioneering force in foundation repair and waterproofing. With…read morecutting-edge technology and a seasoned team, we address everything from cracked walls to structural stabilization. Our Foundation Posts offer a permanent, maintenance-free solution for bowed and cracked basement walls, actively correcting structural issues for long-term stability. In basement waterproofing, DBS excels with the Pressure Release System (PRS), preventing bowing, cracking, and collapse by relieving lateral pressure and managing hydraulic pressure. With over 300 years of legacy adapted from the Army Corps of Engineers, DBS is a trusted partner committed to excellence and innovation, ensuring resilient homes.