Find top-rated spray foam contractors and save up to 37% on energy bills
Compare 2 verified spray foam insulation contractors serving Boulder, Colorado, backed by 445 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 Boulder contractors handle both open-cell and closed-cell spray foam. Homeowners here typically cut energy bills by around 37% — 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 Very Cold.
Recent Reviews:
Koala Insulation of Boulder: I contacted Chris White from Koala Insulation of Boulder in late November and he was able to get me scheduled before the holidays. His spray technician Bernie and assistant Brandon showed up promptly on the morning of installation. They were both very professional, polite and friendly. I was communicated to exceedingly well, and knew from start to finish what was happening. Care in clean up was also done well. My back office and garage attic now feel much warmer and quieter and these efficiency improvements will add value to my home. I can now do some final wiring and finish work with confidence. I am quite pleased with the results and would recommend Koala Insulation to anyone. Money well spent! Mark W
UPDATE: It's been over a month now and I'm so happy I did this! I used to know how cold it was outside the second I put my feet on my bedroom floor, but now I have no idea because it's toasty warm! Thanks again guys! - - - I'm a hard guy to impress, but impress me they did! Devin was thorough when we went over my needs, and he was great with communication and getting me an estimate quickly. The price for the foam insulation job was very reasonable (I'd looked previously and had sky high estimates). The Job. My house has numerous rooms with cantilevers that overhang the level below, and they were poorly insulated in the late 70's. The floor over these cantilever areas was freezing all winter long! I had enough, time to fix it properly! Bernie was the specialist that was sent to do my job and he was great! He and his assistant were extremely courteous, professional and clean! They went above and beyond when hearing what was most important to me, and did an outstanding job! They were fast, polite and made a big effort to work cleanly. I'm extremely happy with the job that Koala Insulation of Boulder did, and will definitely call them back for the other insulation projects that my older house needs. Bring on the cold! Thanks guys! - Craig
Amazing service, the team was very quick, got us in earlier than expected and was in and out quickly. They added more insulation than I expected and left our house very clean. We opted for the solar fan and added a few soffits. Man was that the right move. After adding central air to our house we noticed the upstairs would not cool down when sun was shinning on house but after this service it is night and day difference. Our AC isn’t running all day, we are cool and saving tons of $$
Recent Reviews:
We hired EcoHandyman to install a radon mitigation system, new crawlspace vapor barrier, and insulation in our home's crawlspace. Overall, we had a very positive experience and would recommend their services. EcoHandyman was the most expensive of the bids we received, but we felt the quality materials and work justified the price for our primary residence. They used a thick 12 mil crawlspace vapor barrier, reinforced to 15 mil under stored items, exceeding the flimsier 6 mil plastic typically used by cheaper contractors. The radon system components were high quality and installed properly for energy efficiency and performance. Throughout the project, communication was clear and all crew members conducted themselves professionally in our home. They kept us informed during each step and were thoughtful about protecting our space during the messy crawlspace work. Most importantly, the crawlspace improvements have drastically reduced winter radon levels from over 8 pCi/L to around 1 pCi/L now. The vapor barrier and added insulation also seem to make the floor noticeably warmer this winter. The overall experience gives us confidence that the work was done right. While the price was high, we felt it was fair for the quality and expertise. For any major crawlspace or radon work needed in the future, EcoHandyman will be at the top of our list to call again.
We have used Eco Handyman for one project (attic insulation and sealing) and consulted with Nate to plan another (sealing a crawlspace for heat, radon, and mice mitigation). For both, Nate immediately had several good suggestions. The crew that did the insulation work were prompt, friendly, and paid attention to clean up. I think I even heard them singing, showing that they enjoy what they do, even though working in an attic clearly is not fun. The result is a house that hasn't been unbearably hot for the first summer in many years. We will be using them again for the radon project when the prep work is done. Thanks, Nate and crew!
I highly recommend working with Eco Handyman. Their team is incredibly insightful and professional. My wife and I felt at ease knowing they'd be installing our Radon Mitigation System and felt even more so once the work was completed. We spoke with several specialist in Radon mitigation when we purchased our home, and Eco Handyman far surpassed them all. Their attention to detail is superior and the installation process was timely and done in a clean way. After the job was completed, they explained how the system worked and provided us with a monitor to test for Radon levels. The entire process was smooth and efficient. Thanks again!
These are the questions Boulder homeowners ask most about spray foam cost, R-value, and open- vs. closed-cell foam — with context for local pricing and roughly 37% typical energy savings. Compare the 2 verified Boulder contractors above for exact quotes.
Not finding the right fit in Boulder? Many spray foam contractors travel to nearby towns. These communities within about 60 miles all have verified contractors listed.