Find top-rated spray foam contractors and save up to 35% on energy bills
Compare 4 verified spray foam insulation contractors serving Kansas City, Missouri, backed by 776 customer reviews averaging 4.8★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Kansas City contractors handle both open-cell and closed-cell spray foam. Homeowners here typically cut energy bills by around 35% — 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 Cold.
Recent Reviews:
Hey Koala just removed the old Cellulose insulation that was in our 50 year old house and replaced it with “White as snow “ blown in fiberglass that is 20 inches deep. It looks fluffy, but like one of the installers said, “ you would not want to roll in it”. This company and its people are friendly & professional, all well trained in customer service… Great communication from start to finish, I will be telling all my friends about Koala. Thanks from, Dan&Vicki - Stilwell, Kansas 11/19/25
What a wonderful experience! Excellent communication and overall a very professional outfit. They jumped on our project very quickly and left our 20x30 out building looking great! Would highly recommend Koala.
Great experience with Koala Insulation! They went above and beyond to do old insulation removal and new insulation placement, answering questions, and addressing special circumstances in my attic. The time between providing estimate and project completion was smooth and expeditious. Appreciate their excellence! Five star rating!
Recent Reviews:
First, many thanks to Dan, who really listened to our needs and captured key details in our proposal. Next, Brian and Ben worked on our attic insulation/re-insulation project. It is a very large space with several unique features. They worked methodically and diligently as a team. Both were experts in all phases of the job (air sealing, insulation wrapping, soffitt vent baffles/blocking, blowing new cellulose and extending all bath exhaust tubes to existing roof vents). They were efficient, professional and delivered exceptional results! I also want to mention Jason and CJ who were assigned to build a long walkway the length of the attic to allow easy access from the access point above the garage to the bath exhaust fans mentioned above. They asked for my input, brought quality materials and created a sturdy and safe walkway so we can maintain our home into the future. They coordinated well with Brian and Ben throughout the two-day project. We have used Hayes Insulation in the past and are truly pleased with the overall results this time, too!
I recenty changed my wood burning fireplace into a gas on. David helped me decide on the Canyon Lava log set and Julio installed them. I could not be more pleased. I shopped several places and these gentlemen offered great service and a good price. I am so happy!
Superior service and excellent customer service and workers! Brian, Ben, Zo, and others I can’t remember names, are great people, hard working, and all so nice! Dan found things that we didn’t even know about and fixed them! This insulation job was very much needed, and executed perfectly! I highly recommend them!
Recent Reviews:
Sean and his team (Caleb, Dillon, Mark, and Luke) did a great job insulating our home, as they went above and beyond what we expected. It felt like they were family, the way they were taking extra care to do everything "just right", as if it were their own home they were working on. They were super friendly and very knowledgeable, suggesting things I hadn't even considered. They took many pictures, before and after, for our reference and peace of mind. They even let me take their electric motor bike for a spin. :) Highly recommended.
The team were very professional in redoing my attic insulation. We started off with a R value in the 19-20 range and ended in the R48-49 range. First they foam sealed all the gaps from the attic to the living floor and then followed it with piping in the new installation. Photos were taken of before and after and provided for comparison and a blower door test was ran to confirm. Would definitely recommend this business. They took great care of my home and picked up / vacuumed all the mess. In February 2025, had them in again to seal the basement and replace the insulation with foam. Again a great job, would highly recommend them for energy efficiency improvements.
Had several quotes for insulating my attic and Green Improvement Consulting came in at the best price. Not only that, they were easy to work with, did a fantastic job, and had exceptional customer service. The crew the day of were very polite and friendly. Couldn't have asked for a better experience. Would highly recommend.
Recent Reviews:
A+ Spray Foam of Olathe insulated my attic, and it’s been the best home upgrade I’ve made. My home stays so much cooler in the summer, and the energy savings are already noticeable. The team was professional, quick, and left the space spotless!
A+ insulated two new additions in my home. A Plus Spray Foam in Olathe was there within 24 hours of our call for an estimate. The price was very good. We are grateful to have found a reputable and experienced company that could handle our large project. We would use them again.
A Plus Spray Foam Olathe installed additional insulation in our attic around November 2022. They arrived promptly after I contacted him to assess the attic and give an estimate. The two gentlemen that did the work were on time, friendly, knowledgeable, and able to answer all questions when needed. The payment process was handled professionally. This company is an excellent choice for anyone searching for similar services.
These are the questions Kansas City homeowners ask most about spray foam cost, R-value, and open- vs. closed-cell foam — with context for local pricing and roughly 35% typical energy savings. Compare the 4 verified Kansas City contractors above for exact quotes.
Not finding the right fit in Kansas City? Many spray foam contractors travel to nearby towns. These communities within about 60 miles all have verified contractors listed.