Spray Foam Insulation in Ann Arbor, MI

Koala insulation did a fine job on my project that. I got estimates from 2 other companies, who bid 2x higher for, and didn't want to do what I wanted. They only wanted to spray foam, and not use batting. I needed to use batting between the floor joists, so I could have access for future duct work that I need. I appreciate Koala being honest, really pleasant to work with, and with very fair prices. For a first time home-owner, I appreciated Bob taking time to discuss options for the job, and treating me with respect. I didn’t get that from other companies. For the first section Bob, Nolan and Jay foam sprayed the edges and used batting between the joists. They had to enter the crawl space through a small opening where a window had been. For the other section, they had to fix what a previous company didin't do---that company sprayed the edges, but did not add batting between the floor joists. They moved the sofa, and crawled underneath, where they had very little wiggle room. They also did a great job cleaning up after themselves, and making sure I was happy with the carpeting and furniture put back in place. If you want honest, pleasant workers with fair prices, I highly recommend Koala. They came on time, and got the job done on time with smiles and good humor.

Koala did a great job from start to finish. They came out and gave us an estimate quickly. And from there they did the job just a week later. I think our attic being pretty small allowed them to squeeze us in. They did very thorough work and took good pictures. I would hire them again. One of the can housings for our recessed lights was loose and they even fixed that.

Greg, Bob, and Nolan did an amazing job and took care of my pole barn. They did it in a multi step process which i liked and gave me time to see the whole project progress from the estimate to the final spray. Pricing was great and Greg worked with me back and forth for the best option and for the best price. Once it came tome to spray Bob and Nolan came and moved everything out of the way, put plastic over everything and were not bothered by my big tool box or air compressor etc. then they filled all of the steel seams with a thinner foam and came back the next day to do the big spray, we let it air out over the weekend and they came back on monday to carefully and respectfully remove all of the plastic and scrape the surfaces where i plan to put up OSB for walls. If i ever move i will have another pole barn and Koala will insulate it. I tried uploading pictures but I'm not sure if it's working.

I can't recommend these guys enough, they did an awesome job. Our house is about 150 years old, has had multiple additions, and was a neglected rental for many years so no project is ever straightforward. Niko the owner came out and happily went into both attics to give us a very reasonable quote and answered all of my questions about cellulose, spray foam, and attic ventilation. With the spray foam we had to leave while it cured, so I just gave him my keys which is a lot of trust in a stranger. These guys were super knowledgeable and professional, made the whole process easy, took a bunch of before and after photos, and even vacuumed before they left. We had the roofing contractor come out to take care of some vents and he agreed that they did a great job with the insulation and putting in the baffles and plugs so we can add extra intakes. Anyway, I've been putting this project off for four years and I'm glad it worked out so well thanks to Thermal Building Solutions! ✨

We had a new roof installed after 25 years and decided to upgrade our attic insulation. I researched multiple companies but was so impressed with the information regarding the different types of insulation, the timeliness, and the personal attention of the owner Niko, that we chose his company. He came over and surveyed our attic, described our options and quoted us a very reasonable price for the work to done. He promptly scheduled an appointment and had his staff come to our home in under two weeks. They were fast and efficient, and did a great job cleaning up the involved area. The work was done in March 2025. In June 2025 I came across an opportunity to apply for a Home Energy Rebate. This offer required an invoice with very specific details. I contacted Niko to ask if would send me a revised invoice with the necessary information. He promptly and graciously took the time from his busy schedule to help me out. Niko and his company are truly outstanding with excellent work, stellar service and affordable prices. I give my highest recommendation for Thermal Building Solutions!

Got our attic insulated a few weeks back and they did a fantastic job! Niko, the owner, came to our house himself to give us a quote and we were able to use a rebate from the city to go towards the service. Niko was always available for questions and I’m so happy we went with this company! 10/10 would highly recommend!

Exceptional Service and Quality Insulation! I recently had the pleasure of working with Koala Insulation in Ann Arbor, Michigan, and I can confidently say they exceeded my expectations in every aspect. From the moment I reached out for a quote to the completion of the project, the team demonstrated professionalism, efficiency, and top-notch customer service. The insulation specialists were highly skilled and knowledgeable, taking the time to explain the process and recommending the best solutions for my home. They were punctual, respectful of my property, and ensured that the job was completed to perfection. Not only did Koala Insulation enhance the energy efficiency of my home, but they also left the area immaculate after their work was done. The difference in comfort and reduced energy bills have been noticeable since the installation. I wholeheartedly recommend Koala Insulation to anyone in need of insulation services in the Ann Arbor area. Their expertise, friendliness, and commitment to customer satisfaction are truly commendable. Without a doubt, a five-star experience!

I have personally worked with koala on multiple projects and can tell you they truly care about the outcome of the work that they do and the customer that’s receiving it.

Koala Insulation was efficient, knowledgeable, and trustworthy - our blown-in insulation was done quickly, cleanly, and at a great rate.

The building inspector just said, "Oh, Spink, they're the best. They do great work." He's right. We've used them several times with great results. They're also polite, punctual, easy to reach, responsive...

Excellent service at reasonable prices. We had several quotes to insulate our new build home and they had the best price. They were timely and efficient. Will use them again for future construction projects with my remodeling business!

After a kitchen remodel on our ~1950s home, we found ice forming on the tops of some of our recessed lighting cans in the attic during winter, meaning we did not have good insulation and air flow in our attic. We had both Home Depot and Spink come out and quote us on adding insulation and fixing air flow problems (installing baffles, clearing insulation from soffit vents). Both quotes were almost dead-on pricewise (within $10), but Spink's quote included more insulation, getting us to minimum R50 in our attic, whereas HD was less. Additionally, Spink was able to schedule the job within a week, whereas HD was booking 2+ weeks out. Finally, Spink also offered to do and submit the paperwork for DTE rebates, which is a nice bonus. The installers arrived and got right to the job. Joe got into our attic, poked around for a few minutes, and immediately explained everything, in intricate detail, to my wife and I. What they were going to do, the air flow issues they noted, how much insulation they were going to add, etc... They put down drop cloths to protect our newly-refinished hardwood floors, and they were careful to get the worst of snow/salt off their boots when coming inside (it was actively snowing outside). Within about 2 hours, they had completed the job and cleaned up. Again, Joe went through all the details of what they had done, and made sure we were happy. I took a peek up in the attic, and we ultimately ended up with close to 18" of insulation, which is even above R50 (R50 is about 15.5"). We were very happy with Spink, and would definitely recommend them for any insulation job in the Ann Arbor area.

My issue appeared to be an attic insulation issue, but after great listening April realized it was really an air quality issue. She plainly explained what would be best for us. She was clearly knowledgeable. And, while she definitely could have recommended work and made some money off of us, she didn't. She took a bit more of her time to explain what we needed to do and gave some product recommendations. I will always give someone like that 5 stars.

I scheduled April Rue, the owner of Ms. Green Construction to give us a quote on a couple of jobs. She looked at the areas and explained why we should not do them given the needs of the area. She was incredibly knowledgeable about the multiple needs of this complex space and gave us numerous, specific fixes that she would not benefit from. She blew me away and I wanted to leave a review because of that.

April was phenomenal. This company is so honest. They talked me out of the most expensive insulation and told me why less pricey solutions would actually be better for me.