Insulation contractor in Boulder, CO
Spray foam, blown-in, and batt insulation for Boulder homes and businesses — installed by a local, family-owned crew with 23+ years of experience.
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Why insulation matters in Boulder
Boulder homeowners tend to be highly energy-conscious, and for good reason — the city's older housing stock and exposed foothills location combine to make insulation a high-impact upgrade. Homes near the foothills face strong downslope winds that find every unsealed crack, while older Boulder houses often have thin, settled attic insulation and drafty wall cavities that drive up both heating and cooling costs. Many Boulder customers pair attic insulation with air sealing to stop the wind-driven leaks that are so common here. Xcel Energy, which serves Boulder, frequently offers rebates for insulation and air-sealing improvements, making these upgrades more affordable. Our free on-site inspection measures your actual R-values, locates the thermal bypasses unique to your home, and lays out a clear plan — whether that's blown-in cellulose for an older attic, closed-cell spray foam for a crawlspace, or targeted air sealing to tame the foothills wind.
Rebates: Xcel Energy serves Boulder and frequently offers insulation and air-sealing rebates — we'll help you check current eligibility.
Insulation services in Boulder
From attics to crawl spaces, our family-owned crew handles every insulation need across Boulder with commercial-grade equipment and top-tier materials.
Why Boulder homeowners choose Everflow
Family-owned
A local, family-operated crew — never subcontracted.
Licensed & insured
Fully licensed and insured for your protection.
Free estimates
Free on-site inspections and honest, upfront pricing.
Local crew
Based in Fort Collins, we know Northern Colorado homes.
Neighborhoods & towns we serve in Boulder
We insulate homes and businesses throughout Boulder and the surrounding area, including:
Recent projects in Boulder
Real insulation work from our crew across Boulder and the surrounding region.
Precision wood stud batt insulation installation
Attic blown-in cellulose deep thermal fill
Attic rafter wall spray foam air & moisture barrier
Complete air sealing & vapor seal rim joists
What Boulder customers say
"Highly recommend. Best spray foam company I've used. Showed up when they said they would. Did what they said they would. Will be using again."
"Everflow insulated our home in Fort Collins. The temperature difference on our second floor was night and day within 24 hours. Super clean crew and courteous owners!"
"Professional, punctual, and extremely knowledgeable. They explained the difference between closed-cell and open-cell spray foam and saved us a bundle on our garage remodel."
Insulation FAQ for Boulder
Everflow Spray Foam serving Boulder, CO
Family-owned · Commercial-grade equipment · Top-tier materials
Get a free insulation quote in Boulder
Free, no-obligation estimate from your local Boulder, CO insulation experts.