Extra Care insulation
Verified Pro
11 mo online5.0(71)
Insulation Services in Boulder, CO
Compare 29 insulation services contractors near you in Boulder and surrounding area with an average rating of 4.9/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated March 23, 2026
Most pros respond within 2–24 hours
Verified Pro Installers
extracareinsulation.com
Efficiency Revolution, LLC
Verified Pro
12½+ years online4.9(53)
Eco Handyman
Verified Pro
~21 years online4.8(94)
Level Up Insulation LLC
Verified Pro
3½+ years online4.8(153)
Bestway Insulation LLC
Verified Pro
25 years online4.6(65)
Other Businesses in This Area
CR Spray Foam Insulation
10 mo onlineDenver Precision Spray Foam Insulation
5.05+ years onlineEcoTru Spray Foam Insulation
5.07 years onlineElite Insulation Contractors Westminster
5.02½+ years onlineMile High Denver Spray Foam Inc.
5.04½+ years onlineOnPoint Denver Spray Foam Insulation
5.05+ years onlineUnlimited Solutions
5.03½+ years onlineApex Group
4.93½+ years onlineEcoTru Spray Foam Insulation Boulder
4.97 years onlineKoala Insulation of Boulder
4.97+ years onlineSimple Home Energy Solutions
4.92½+ years onlineTrust Us Insulation LLC
4.9NetZero Insulation
4.810½+ years onlineRocky Mountain Insulators
4.89½+ years onlineThe Insulation Guys
4.8USA Insulation of Boulder – Fort Collins
4.821 years onlinePolarPak Foam
4.3Insulation Services in Nearby CO Cities
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About Insulation Services in Boulder
Insulation services cover attic, wall, floor, and crawl space insulation using materials like fiberglass batts, blown-in cellulose, spray foam, and rigid board. Proper insulation reduces heating and cooling costs and improves comfort year-round.
Typical costs: Attic insulation runs $1,500–$4,000 for a typical home. Spray foam for a crawl space or basement is $2,000–$6,000. Whole-home insulation upgrades can be $5,000–$15,000.
Common projects include:
- Attic insulation upgrade
- Spray foam crawl space or basement
- Wall cavity insulation
- Weatherization and air sealing
- Garage insulation
Simple insulation upgrades in existing walls and attics usually don't require permits. If the work involves modifying structure or electrical, permits may apply.
Frequently Asked Questions
- How much does insulation services cost in Boulder?
- Blown-in attic insulation to bring an older home up to current R-value standards runs $1,500–$4,000. Spray foam insulation for a crawl space or rim joist is $2,000–$6,000. Many utility companies offer rebates for insulation upgrades — ask your installer about available incentives.
- How do I find a reliable insulation services contractor in Boulder?
- A good insulation contractor starts with an energy audit or at least an R-value assessment of your current insulation. They should recommend the right material for each area (spray foam for air sealing, blown-in for attics, batts for accessible wall cavities).
- Do I need a permit for insulation services in Boulder?
- Adding insulation to existing spaces (attic blow-in, wall injection) typically doesn't require a permit. If the project involves structural access, like opening walls, permits may be needed.
About NeedInstall
NeedInstall helps connect customers with local installation professionals across Boulder and surrounding communities. Featured contractors have claimed their profile and verified their business information. Listings marked as "Verified Pro" have been confirmed by the business owner.