4.5 
114 *The Angi rating for Insulation Service companies in Trumbull, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
*The HomeAdvisor rating for Insulation Service companies in Trumbull, CT is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Insulation Service needs.
Last update on December 03, 2025
Serving Trumbull, CT and surrounding areas
Approved
In business since 2009
Free estimates
Warranties offered
"the insulation they recommended saved me about 5000kw a year. the amount of money i am saving is far more the insulation payment on my Eversource bill. No money cost to me out of pocket and my electric bill dropped quite a bit. best move i ever did."
+1
Serving Trumbull, CT and surrounding areas
Approved
In business since 2009
Free estimates
Credit card accepted
"My experience with everyone was excellent. It started with an energy assessment followed up with spray foam insulation throughout my home. Good customer service and follow-up. All was explained thoroughly throughout the process and they welcomed my questions. I highly recommend this service."
+15
Serving Trumbull, CT and surrounding areas
Approved
In business since 2015
Free estimates
Warranties offered
"Great Experience from inspection to install. On time, clean, organized and completed job better than expected. Would and will recommend to anyone looking for insulation."
+21
Serving Trumbull, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2020
Free estimates
Warranties offered
"Very professional, great service, cleaned up perfectly, extremely honest did not blow insulation into walls that it was not needed and lowered the cost we are very satisfied."
+1
Serving Trumbull, CT and surrounding areas
Approved
Super Service Award Winner
In business since 2024
Free estimates
Warranties offered
"I was extremely impressed with the work from Koala insulation. I live in an older house and was having major energy drain issues and my house has always been cold. After the insulation, I could immediately feel the difference, and for the first time, I didn’t need to keep the heat pump running 24x7 to keep the temperature. I can wait to see the savings as I think this is going to cut my bills by a large amount."
+20
Serving Trumbull, CT and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"Small family business. Pleasant C.S.and scheduling experience with back office. Partners were very accommodating and their workers were friendly, neat and completed the full attic 50 year old insulation removal and new batt insulation install in a timely manner."
+5
Serving Trumbull, CT and surrounding areas
Approved
In business since 2015
Free estimates
Small jobs welcome
"Ecofoam insulated my attic with closed-cell spray foam and the results came out great. The space feels completely sealed and much more comfortable already. Sevi and the team were very professional, easy to work with, and kept me updated throughout the whole process. I would highly recommend EcoFoam for anyone looking for quality insulation work."
+29
Serving Trumbull, CT and surrounding areas
Approved
In business since 2015
Free estimates
Emergency services offered
"Arrived on time. Spent 2 1/2 hours doing preparation to protect our home prior to start to spray foam. Quality of the insulation installation is top notch. Very professional and respectful. I could not be happier with the final project!"
+26
Serving Trumbull, CT and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"Window & roof insulation quick, easy, & affordable!"
Serving Trumbull, CT and surrounding areas
Approved
In business since 2001
Free estimates
Credit card accepted
"I liked that the first questions we were asked was "Have you had a home energy audit done? Did you know you can get a rebate on your insulation project?" Before even knowing the scope of our project, they were looking to help make it more affordable for us."
From average costs to expert advice, get all the answers you need to get your job done.
New insulation can make your home more comfortable and boost energy efficiency. Use this insulation cost guide to get an accurate estimate for the installation.
Insulating your attic can massively improve your home’s efficiency and reduce electric bills. Use this guide to find out what attic insulation will cost you.
Your home's ceiling insulation cost will depend on several factors, including the project size, the type of insulation you use, and the R-value.
What is insulation? This behind-the-scenes home fixture will maintain comfortable temperatures in your home no matter the season. It’ll lower energy bills, to boot.
Use this DIY checklist for insulation repair to make your living space more comfortable and reduce your heating and cooling bills in the process.
There are 10 types of insulation you can use for your home. Read this guide to discover which insulation types could be best for the job.
