4.6 
20 *The Angi rating for Insulation Service companies in Key Largo, FL 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 Key Largo, FL 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 October 16, 2025
Serving Key Largo, FL and surrounding areas
Approved
In business since 2015
Free estimates
Credit card accepted
"Fantastic job from start to finish."
Serving Key Largo, FL and surrounding areas
Approved
In business since 1987
Emergency services offered
Warranties offered
"Very professional. The guy was knowledgeable and very professional."
+7
Serving Key Largo, FL and surrounding areas
In business since 2000
Free estimates
Warranties offered
"I had an excellent experience with this insulation company and their crew. From start to finish, they were professional, timely, and extremely organized. They explained all my options clearly, offered fair pricing, and followed through on everything they promised. The crew worked efficiently, respected my home, and completed the job exactly as scheduled. They also helped me secure an FPL rebate, which was a huge added benefit and showed how knowledgeable they are about available energy‑saving programs. Overall, the service was smooth, honest, and high‑quality. I highly recommend them to anyone looking for reliable insulation work."
+10
Serving Key Largo, FL and surrounding areas
In business since 2017
Free estimates
Small jobs welcome
"Insulation Master surpassed my expectations on the worked performed. The team came on time, explained the steps that would be needed and completed the insulation work in record time. Indeed a very professional and responsive team with lots of experience and eye to detail."
+5
Serving Key Largo, FL and surrounding areas
In business since 2024
Free estimates
Credit card accepted
"The best insulation company I have come by with the best prices. Start to finish they were extremely professional and knowledgeable. If you need insulation look no further, A1 insulation is the BEST in Miami. I recommend 100%."
Serving Key Largo, FL and surrounding areas
In business since 2022
Free estimates
Offers commercial services
"An incredibly reliable contractor. They were proactive, communicated extremely well, and their pricing was very competitive. I would recommend them to anyone."
Serving Key Largo, FL and surrounding areas
In business since 2019
Free estimates
Offers commercial services
With years of experience serving the area, we are your solution for all your home and office insulation needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Check out our 5 star reviews from happy customers. Call us today! Satisfaction guaranteed!
Serving Key Largo, FL and surrounding areas
In business since 2018
Free estimates
Offers commercial services
"MUY BUEN SERVICIO Y RAPIDO A BUEN COSTO"
+10
Serving Key Largo, FL and surrounding areas
In business since 1999
Free estimates
Emergency services offered
"Alex crew (Jovney and Josh) insulated 3 skylight tunnels, installed 3 exhaust fan vents out through the roof and re-insulated our entire attic. They along with alex also cleared our dryer vent, which probably hadn't been touched since the home was built. Like I started to say, this crew was top notch, explained the work being performed, kept us informed of progress and did an excellent cleanup job."
+12
Serving Key Largo, FL and surrounding areas
In business since 1986
Free estimates
Emergency services offered
"The space now is fully cooled without overworking any of the units. Very professional and quick turnaround. Nikolas always responded with rapid and helpful information on this project. Will definitely be using again for future projects."
+8
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.
