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KAC Insulators does spray foam and other insulation, and on Google it holds a 4.9 from 110 ratings. Its BBB grade is A+. The company's website says it offers everything from blown-in to spray foam insulation. One recent customer with a turn-of-the-century home said KAC took pictures, discussed spray foam and sent an estimate, then the team showed up on a Monday morning and finished the attic by Wednesday. That customer's one negative was that the whole household had to be out of the house for the project. A customer who had an unfinished attic insulated said Randy explained the different insulation options before starting and the team was in and out in a couple of days. A customer who received spray foam and rockwool insulation said an area in scope was missed, and they came right back within a day to finish it. A customer who had an attic insulated after ice-dam damage gave four stars and said the area around the attic opening in the ceiling was not protected and now needs repainting; Jason and Dennis inspected it and acknowledged better precautions should have been taken. A 2025 customer said KAC spray foamed a damp fieldstone basement and a dirt crawlspace in an antique home, and that the crawlspace never dropped below 55 degrees during freezing temperatures. A 2026 customer said all the foam from a previous insulator's open cell job had to be removed and a fire retardant coating applied.
Did a great job! Got it done quick and for a reasonable price.
We live in a turn of the century home with old fiberglass insulation in the attic. We had reached out to Mass Save but given the age of the home they were unable to assist with updating our attic insulation. We then reached out to Rogers Insulation who were extremely helpful and referred us to Randy and the team at KAC Insulators. They stopped by to take pictures, discuss spray foam insulation, and provided an estimate shortly after. We were able to have them come in mid August 2026 and take care of the attic for us. The team showed up on a Monday morning and were finished by Wednesday. They uncovered areas of my attic I didn't even know existed! They communicated well throughout the process and we are extremely happy with the end result. My home office is on the same floor and already I can feel the difference. I'm excited to see the difference in the dead of winter and the first heat wave of next summer. And to see the impact on heating/cooling bills! The only negative is that all of us had to be out of the house for the project (big dog, 2 cats, 2 adults, and 2 young kids) but that's just because of the type of insulation.
Fantastic, thorough spray foam job. Did almost the whole house during a renovation including roof rafters and wall. Good attention to detail, respect for the property, efficient without skipping things or shortcuts. Easy to work with Randy and his crew. Highly recommend.
Great work, timely and clean
Randy and his crew did a fantastic job insulating 2 family. Top notch!
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1 change recorded — last scanned Oct 10, 2026.
Accurate pricing4.8
Storm and ice work4.3
Second-floor renovation into heated two-bedroom quarters3.8