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  • Average homeowner rating star icon5
    Average homeowner rating
  • Verified reviews icon10
    Verified insulation services reviews

Verified Reviews for Insulation Service pros in Jefferson, CO

*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

Find Insulation pros in Jefferson

Avatar for USI Powers Insulation
USI Powers Insulation
3.4(
8
)
Blown-In Insulation - Install or UpgradeSpray Foam Insulation - InstallBatt, Rolled or Reflective Insulation - Install or Upgrade+2 more

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."
Response time1 day
Response rate100%
6 neighbors recently requested a quote
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Avatar for J H Insulation
J H Insulation
5.0(
1
)
Spray Foam Insulation - InstallBlown-In Insulation - Install or Upgrade

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!

Artisia NM project
Artisia NM project
Fort Lupton project
Fort Lupton project
RV

+2

9 neighbors recently requested a quote
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Avatar for JE Mountain Insulation LLC.
JE Mountain Insulation LLC.
5.0(
13
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

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."
Insulation Project
Insulation Project
Insulation Project
Insulation Project
Insulation Project

+10

Recommended by100%of homeowners
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Avatar for Community Insulation Drywall, LLC
Community Insulation Drywall, LLC
4.6(
34
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving Jefferson, CO and surrounding areas

In business since 2003

Free estimates

"They did a good job."
Insulation
Insulation
Insulation
Spray Foam
Spray Foam

+8

Response time40 mins
Recommended by62%of homeowners
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Avatar for Freeman Insulation and Construction Services
Freeman Insulation and Construction Services
4.2(
20
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install

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."
Stairs before soundproofing
Stairs after Soundproofing
Duct Wrap
Wrapping duct work
Walls and Ceiling

+3

Response time11 hrs
Recommended by93%of homeowners
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Avatar for JC Insulation, LLC
JC Insulation, LLC
5.0(
4
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

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 !"
Response time2 hrs
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Avatar for Precision Spray Foam
Precision Spray Foam
5.0(
9
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+2 more

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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Recommended by100%of homeowners
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Avatar for Spray Foam My Home
Spray Foam My Home
4.8(
35
)
Injection Insulation - InstallSpray Foam Insulation - Install

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."
FOAM
FOAM & BATTS
FOAM
FOAM
FOAM & CELLULOSE

+6

Response time3 hrs
Recommended by64%of homeowners
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Avatar for Vail Valley Insulation, LLC
Vail Valley Insulation, LLC
4.0(
4
)
Batt, Rolled or Reflective Insulation - Install or UpgradeBlown-In Insulation - Install or UpgradeInjection Insulation - Install+1 more

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."
Response time2 days
Recommended by100%of homeowners
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Showing 1-10 of 22
Insulation questions, answered by experts

Insulating windows with plastic works, but it can be time-consuming, and the end results can—and often do—end up lacking in aesthetics. Window film and caulking your windows to make sure there are no drafts are two options that increase the energy efficiency of your home in a low-cost way. Plastic can be a good strategy while you consider alternatives.

Yes, spray foam insulation can be applied to your ductwork and effectively insulate your ducts. Blanket insulation is the easiest insulation product to DIY since it is easy to wrap around ducts. However, spray foam insulation can also benefit your HVAC system if applied to air ducts.

Polyisocyanurate foam, or polyiso for short, has the highest R-value per square inch: 6.5 to 6.8. Polyiso is a rigid foam that comes with a reflective foil on both sides to serve as a radiant barrier. Given its high R-value, rigid foam is usually meant for foundations and basement walls.

Ideally, you can add new insulation to your existing insulation. However, some circumstances require you to remove old insulation before adding any new insulation: 

  • If the insulation is over 15 years old

  • If the insulation is wet or moldy

  • If it is vermiculite insulation

  • If you see signs of pest infestation

Removing old insulation is best left to a pro who can safely dispose of potential moldy or asbestos-ridden insulation.

Costs depend on insulation material, labor, accessibility, and whether existing insulation requires removal.

The Jefferson, CO homeowners’ guide to insulation services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles