Cenco Roofing provides attic insulation in Denver, Colorado — a Lakewood-based Owens Corning Platinum Preferred and GAF Master Elite contractor serving Denver County since 2013 (4.9 stars, 840+ reviews). Free on-roof inspections: (720) 776-8247.

Page data updated August 11, 2026 · Demographics: U.S. Census ACS · Storm history: NOAA/NWS reports

Small cream-colored ranch home with brown shingle roof and Cenco Building Services yard sign

Attic Insulation · Denver, Denver County

Attic Insulation in Denver, Colorado

Ice dams start in the attic, not on the roof. When attic heat melts snow that refreezes at the eaves, gutters and fascia pay the price — a pattern we see across Denver every winter. Cenco air-seals and insulates attics to Colorado-appropriate R-values (codes call for roughly R-49 to R-60) and checks ventilation in the same visit, because the roof, gutters, and attic are one system.

In Denver, that comes with crews who know Denver County building departments, HOA requirements, and the local hail patterns that hit the area’s 376,025 homes (median value $637,128). We are locally owned in Lakewood since 2013, BBB A+, 4.9 stars across 840+ reviews.

Book the free inspection — if the roof is healthy you get that in writing, and if it isn’t you get photos, a scope, and straight answers.

Learn more about how we approach attic insulation — materials, process, and warranties.

We also cover attic insulation across all of Denver County.

Why Denver Homes Need It

  • 383,821Housing units
  • 48.4%Owner-occupied
  • $671,332Median home value

Source: U.S. Census Bureau, American Community Survey 5-year estimates.

Frequently Asked Questions

What R-value does a Colorado attic need?

Colorado codes call for roughly R-49 to R-60 in attics for new work u2014 and many older Front Range homes measure far below that. We measure what your Denver attic actually has during the free assessment and quote the gap, not a guess.

Can insulation really prevent ice dams?

It's the root fix. Ice dams form when attic heat melts roof snow that refreezes at the cold eaves and gutters. Air-sealing plus proper insulation keeps the roof deck cold and even, which is why we treat insulation as part of the roof-and-gutter system rather than a separate trade.

Will more insulation lower energy bills in Denver?

Typically yes u2014 attic heat loss is one of the largest line items in a Colorado winter energy bill, and insulation is one of the few home upgrades that pays back in both comfort and dollars. The assessment is free and comes with a written scope.

What Homeowners Say ★ 4.9 · 840+ Google reviews

Reputation you can verify

4.8 across 1,222 reviews

See why Cenco Roofing has earned a 4.8-star reputation across 5 independent platforms. Explore real customer experiences, the projects behind them, and how our team approaches every situation — from quick repairs to full storm-damage restorations.

4.9★ 841 4.8★ 228 4.8★ 134 5.0★ 17 3.0★ 2
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Cenco Roofing (Cenco Building Services) 7400 W 20th Avenue, Lakewood, CO 80214 (720) 776-8247 · Open 24/7 for storm emergencies
  • Colorado Licensed & Insured
  • Owens Corning Platinum Preferred · GAF Master Elite
  • BBB A+ · Serving the Front Range since 2013

Get a Free Roof Inspection

Real inspection by a trained roofer — not a guess from the ground. Hail specialists on staff, Owens Corning Platinum installer, Class-4 impact-resistant options.

Request a Free Quote Call (720) 776-8247