5 
10 *The Angi rating for Insulation Service companies in Jefferson, CO 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 Jefferson, CO 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 July 10, 2026
Serving Jefferson, CO and surrounding areas
Approved
In business since 2010
Free estimates
Emergency services offered
We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!
+2
Serving Jefferson, CO and surrounding areas
Approved
In business since 1989
Free estimates
Emergency services offered
"They cleaned up pretty well, but there was a little we had to clean up as well. We liked their professionalism and the way in which they answered all our questions before they commenced work."
Serving Jefferson, CO and surrounding areas
In business since 2006
Free estimates
Emergency services offered
"Excellent. The JE Mountain team was professional, timely, and did great work on the timeline they promised. Then cleaned up after themselves. They did both spray and batt insulation for me and I recommend them without reservation. They’ll definitely be my first call for my next project."
+10
Serving Jefferson, CO and surrounding areas
In business since 1976
Free estimates
Small jobs welcome
"It was messier than I had expected. There was insulation everywhere."
+19
Serving Jefferson, CO and surrounding areas
In business since 2003
Free estimates
"They did a good job."
+8
Serving Jefferson, CO and surrounding areas
In business since 2017
Free estimates
Credit card accepted
"They did a great job with our insulation project. They were easy to deal with and very professional during the planning stage. They arrived on time and completed the project within the timeline we had agreed upon."
+3
Serving Jefferson, CO and surrounding areas
In business since 2024
Free estimates
Credit card accepted
"juan was very good at his job I highly reccomend jc insulation . my project looked great !"
Serving Jefferson, CO and surrounding areas
In business since 2017
Free estimates
Credit card accepted
"It was excellent. They came out exactly and did a good job."
+6
Serving Jefferson, CO and surrounding areas
In business since 2015
Free estimates
Credit card accepted
"I had used Community Insulation to add insulation to the attic and was so pleased with their professional service that I requested them to add insulation to the crawl space. I have recommended them several times."
+6
Serving Jefferson, CO and surrounding areas
In business since 2018
Free estimates
Credit card accepted
"Tim was extremely professional from start to finish, as was his assistant. He made sure all remnants of insulation or trash were removed and my house was just, as clean as when he arrived. I have since had an energy assessment blow test of how much air is escaping from my attic. The test showed that there was a substantial change and less air was escaping. I was able to receive a rebate which was an added bonus. I would recommend Vail Valley Insulation for any insulation project."
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