Find top-rated spray foam contractors and save up to 40% on energy bills
Compare 11 verified spray foam insulation contractors serving Rapid City, South Dakota, backed by 83 customer reviews averaging 4.6★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Rapid City contractors handle both open-cell and closed-cell spray foam. Homeowners here typically cut energy bills by around 40% — get free quotes and read verified reviews below.
Note: Actual savings vary based on home size, current insulation, energy rates, and climate conditions. These estimates are based on Department of Energy data for Subarctic.
Recent Reviews:
Integrity gutters did a wonderful job, The workers were very professional and efficient. They were polite and answered any questions we had. We got the best seamless gutters I’ve ever seen. I would highly recommend them to anyone. Thanks so much.
Recent Reviews:
Richard came out and sprayed my crawl space to aid with keeping my floors warm during the cold months. Very professional, I recommend all my friends.
Great job, super professional. Best spray foam insulator in Rapid City!
Couldn't have asked for better service. Did a great job
Recent Reviews:
They can do it all. I’d recommend them if you want quality work done. Was very very happy!!
Very polite and friendly staff excellent customer Service
They where on time, clean, polite, and quick. To my surprise when they where done they discounted my bill because it did not tale as long as they figured in there estimate. I told them not to worry about it they Insisted, any how I look forward to using them in the future on a bigger project in the future.
Recent Reviews:
The lady up front is the best!
They are professionals and the best in sunshine
Recent Reviews:
First class craftsmanship
There work always looks amazing and they are wonderful to work with, thanks 😀
Recent Reviews:
Black Rock did and outstanding job with insulating my building. From start to finish, their staff were professional, informative and explained parts of the process of i had questions on it. I could tell the crew knew what they were doing as team members worked their respective areas giving the taks the attention it needed. Im pleased I chose this company as the end result far exceeded my expectation and I felt fist hand the added benefit of the insulation I chose as my buildings temperature held while outside was in the teens. Thank you Black Rock. I will be referring my friends to you for their insulation needs.
Arrived on schedule, did an excellent job covering everything prior to spraying foam, sprayed foam in a manner to provide excellent insulation. Cleanup upon completion was very good. Employees were friendly and did an excellent overall job.
The employees were very professional and the coverage of insulation was perfect. The price was very competitive. I’d recommend Big Rock Insulation and would hire them again if I have future projects.
Recent Reviews:
These guys are great to work with and do an amazing job! I highly recommend them.
They were very dependable and and a very professional job.
Arrived quickly and were very efficient in getting the job done.
Recent Reviews:
Reliable and Great follow up. Very competitive rates. Will use company again for other properties.
These are the questions Rapid City homeowners ask most about spray foam cost, R-value, and open- vs. closed-cell foam — with context for local pricing and roughly 40% typical energy savings. Compare the 11 verified Rapid City contractors above for exact quotes.