4.5 
148 *The Angi rating for Insulation Service companies in Fort Collins, 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 Fort Collins, 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 23, 2026
Serving Fort Collins, CO and surrounding areas
Approved
In business since 1993
Free estimates
Credit card accepted
"Minimal clean up do after the job was done. Denver Insulation is using the very top grade foam glass insulation to perform the work"
+10
Serving Fort Collins, CO and surrounding areas
Approved
In business since 2020
Free estimates
Warranties offered
"Alvin and Jose did a wonderful job for us. They are conscientious and skilled and I would recommend this company to everyone needing insulation."
+25
Serving Fort Collins, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2021
Free estimates
Offers commercial services
"RL Insulation LLC has been an incredible partner on several commercial projects for my company. Their team is reliable, efficient, and consistently delivers high-quality work. They complete projects quickly without sacrificing attention to detail, and their professionalism makes them a pleasure to work with. If you're looking for an insulation company that gets the job done right the first time, I highly recommend RL Insulation LLC!"
+2
Serving Fort Collins, CO and surrounding areas
Approved
In business since 2001
Free estimates
Customers say: Quick response
"Dave and his crew did great with our garage insulation. I would hire them again"
Serving Fort Collins, CO and surrounding areas
Approved
In business since 2019
Free estimates
Credit card accepted
"Prompt, clean, courteous and a job well done. The two brothers do good work. I would use them again if I had insulation related home projects."
Serving Fort Collins, CO and surrounding areas
Approved
In business since 2021
Free estimates
Offers commercial services
"Alvin is a very good worker and takes pride in his work. The spray foam work is amazing and I definitely recommend it. I had insulation done as well and had no complaints. Everything from business to work is great with DINO insulation."
+15
Serving Fort Collins, CO and surrounding areas
Approved
Super Service Award Winner
In business since 2014
Free estimates
Emergency services offered
"Insulation Station did an excellent job removing and installing new cellulose insulation."
+20
Serving Fort Collins, CO and surrounding areas
Approved
In business since 2017
Free estimates
Customers say: Terrific value
"Great communication and value. Would definitely hire again!"
+4
Serving Fort Collins, 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 Fort Collins, CO and surrounding areas
Approved
In business since 2004
Free estimates
Emergency services offered
"Nathan was very nice and detailed on what I needed with my roof. He went through my attic and took several pictures and explained I didn't have enough ventilation in which I was pleased Jackie was very helpful however I wasn't able to get back in contact with her in which I had a couple of questions regarding scheduling The install itself was great and Darryl was great he explained why we were using boards instead of plywood and was very responsive and knowlegable about the install. Overall I'm very satisfied with home genius exteriors"
From average costs to expert advice, get all the answers you need to get your job done.
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