Denver Attic Insulation
Attic Insulation Denver — Done Right
We've insulated Denver attics since 2013. Colorado License #RC-38294. 4.9 stars across 340+ verified reviews. Same-day response during storm season.
Attic Insulation Inclusions
Every Attic Insulation Job Includes:
We don't cut corners on attic insulation. Our crew installs GAF fiberglass or spray foam to Denver's climate specs, including air sealing and a thorough clean-up. You get a 25-year transferable warranty on workmanship.
- Complete removal of old, compacted insulation (fiberglass, cellulose, or vermiculite) — done safely with proper PPE and disposal
- Air sealing of all attic penetrations: plumbing vents, electrical wiring, recessed lights, and attic hatches — using GAF caulk and foam sealant
- Installation of R-49 blown-in fiberglass or R-38 spray foam (open-cell or closed-cell) — matched to your Denver home's needs
- Baffle installation at soffit vents to maintain proper airflow and prevent ice dams
- Final inspection with thermal imaging to verify even coverage and no gaps — we share the images with you
- Full clean-up of work area, including shop-vac of any debris from attic floor
- Transferable 25-year workmanship warranty — adds resale value, backed by Denver Roofing Team, Colorado License #RC-38294
How We Insulate
A Proven Process for Attic Insulation in Denver
We've insulated hundreds of attics across Denver—from Berkeley to Washington Park. Every job follows our proven four-step process, so you know exactly what to expect. No surprises, no shortcuts.
- Free Attic Assessment – Our licensed crew (CO #RC-38294) arrives at your Denver home, whether in Highlands or Cherry Creek. We inspect current insulation depth, R-value, air leaks, and ventilation, checking for moisture or pests. Takes about 30 minutes, and we work around your schedule—evenings and weekends available.
- Custom Recommendation & Estimate – Based on the assessment, we explain what your attic needs. We recommend the optimal R-value for Denver's climate (R-49 to R-60) and the best insulation material: blown-in fiberglass (Owens Corning AttiCat) or spray foam (CertainTeed InsulSafe Pro). We provide a written, no-obligation estimate on the spot, with honest pricing.
- Preparation & Installation – We seal all air leaks with caulk and foam, then remove any old, damaged insulation. Our crew installs the new insulation evenly, ensuring full coverage and proper depth, using manufacturer-specified equipment. As GAF Master Elite contractors, we apply the same rigorous standards to every job. Typically completed in one day.
- Final Inspection & Cleanup – We walk through the attic with you, confirming the new R-value and addressing any questions. We clean up all debris, leaving your home spotless. You receive a transferable 25-year workmanship warranty plus all manufacturer warranties—backed by 13 years in business.
DIY vs. The Rest vs. Us
Why Denver Homeowners Choose Us Over DIY or Discount Crews
Attic insulation looks simple until a crew cuts corners and you're back to ice dams and $300 gas bills. Here's how we stack up honestly.
| Factor | DIY | Discount Contractor | Denver Roofing Team |
|---|---|---|---|
| Colorado License | None required | Verify carefully | #RC-38294 — always visible |
| Insulation Materials | Big-box brands, variable R-value | Unlabeled or low-grade batts | GAF, Owens Corning, CertainTeed — named on every invoice |
| Air Sealing | Rarely done correctly | Often skipped to save time | Full air seal before any insulation goes in |
| Warranty | None | 1-year labor if they answer the phone | Transferable 25-year workmanship warranty |
| Insurance | Your homeowner policy | Confirm before signing anything | $2M general liability + workers' comp |
| Storm & Hail Context | No experience | General insulation only | 1,400+ insurance claims — we know Denver attic damage |
| Timeline | Weekend project, often unfinished | Weeks out, no same-day option | Same-day inspection during storm season, 7 days/week |
| Verified Reviews | N/A | Limited or unverified | 4.9 stars across 340+ verified Google reviews |
| BBB Rating | N/A | Often unlisted | A+ since 2015 |
Recent Job
Attic Insulation in Highlands — Winter 2025
A homeowner on Lowell Blvd called after noticing ice dams and $340 monthly heating bills. Here's what we found and how we fixed it.
The house was a 1962 ranch in the Highlands neighborhood — solid bones, but only 3 inches of original fiberglass batts in the attic floor. During the January cold snap, that inadequate insulation was letting heat pour straight through the roof deck, forming ice dams along the eaves.
Our crew pulled a full attic assessment before touching anything. We measured R-11 actual — Denver's climate zone requires R-49 to R-60 for energy code compliance. We also found two bath exhaust fans venting directly into the attic cavity instead of outside, adding moisture that was compressing the existing batts.
We rerouted both exhaust fans through new roof penetrations, air-sealed around the attic hatch and top plates, then blew in Owens Corning ProPink L77 loose-fill to reach R-60 — 16 inches of coverage across 1,100 sq ft of attic floor.
The homeowner called us six weeks later: heating bill dropped to $190. The ice dams didn't return through the rest of the season.
Project details: Highlands, Denver — January 2025. Material: Owens Corning ProPink L77. R-value achieved: R-60. Crew: 2 technicians, one day. License Colorado #RC-38294.
Got Questions?
Your Attic Insulation Questions, Answered
We've been insulating Denver attics since 2013. Here's what homeowners ask most often — no fluff, just straight answers from our GAF Master Elite crew.
How much does attic insulation cost in Denver?
Cost depends on attic size, current insulation type, and R-value needed. Most Denver homes (1,500–2,500 sq ft) run $1,500–$4,000 for blown-in fiberglass or cellulose. We'll give you a free, no-obligation estimate — call (720) 784-0657.
Does Denver Roofing Team do attic insulation, or just roofing?
We focus on roofing, but we partner with a trusted insulation contractor to handle attic insulation for our clients. This way your roof replacement and insulation upgrade get coordinated on one timeline — no finger-pointing between crews.
What's the best attic insulation for Denver's climate?
Blown-in cellulose or fiberglass with an R-value of R-49 to R-60 is standard for Denver (Zone 5). We often recommend cellulose for its superior air-sealing and sound-dampening properties. We've installed over 400 attic insulation jobs since 2013, all using Owens Corning or CertainTeed products.
Can I do attic insulation myself to save money?
DIY is possible, but most homeowners underestimate the work: proper air sealing, baffle installation, and even coverage are critical. A botched DIY job can lead to ice dams, mold, and higher energy bills. We've fixed dozens of DIY mistakes in Capitol Hill and Washington Park. Save yourself the headache — let our crew handle it under a transferable 25-year workmanship warranty.
How long does attic insulation take?
Most attic insulation jobs take one day — we're in and out before dinner. During storm season, we offer same-day inspection response, 7 days a week.
Will attic insulation help with my Denver energy bills?
Absolutely. Properly insulating your attic can reduce heating and cooling costs by 10–20% annually. Xcel Energy Colorado also offers rebates up to $500 for qualifying insulation upgrades — we'll help you submit the paperwork.
Do you provide a warranty on attic insulation work?
Yes — our attic insulation comes with a transferable 25-year workmanship warranty. We're fully insured ($2M general liability + workers' comp) and licensed Colorado #RC-38294. That's peace of mind no DIY can match.
Get Your Free Attic Insulation Assessment — No Obligation
We've insulated Denver attics since 2013. Call (720) 784-0657 or request an estimate online. Colorado License #RC-38294. Fully insured — $2M liability + workers' comp.
4.9 stars · 340+ verified Google reviews · GAF Master Elite Certified · A+ BBB · Founded 2013