Roofing & Siding Contractors in Denver

The threshold in Colorado is generally: hail stones of 1 inch (quarter-sized) or larger cause enough impact damage to asphalt shingles to trigger full replacement coverage under most Colorado insurance policies. Below that, spot repair may be appropriate. After a hail event, we recommend an inspection even if you don't see obvious damage from the ground — asphalt shingle bruising (granule displacement) is often invisible from street level but creates a pathway for moisture once the bruised area cracks under UV and freeze-thaw cycling. In Denver, we often find significant hidden damage in the spring following the previous summer's hail season.

The Front Range hail corridor is the strip of territory along the eastern slope of the Rockies from Cheyenne, Wyoming to Pueblo, Colorado — roughly following I-25. This corridor is the most hail-active zone in North America because the Rockies act as a lifting mechanism for Gulf moisture flowing north, creating extraordinarily strong updrafts in thunderstorms that can support very large hailstones. Denver sits near the middle of this corridor. The eastern suburbs (Aurora, Parker, Centennial) and northern suburbs (Westminster, Thornton, Brighton) are slightly more hail-active than central Denver due to the storm track from the southwest.

Yes — Denver requires a roofing permit for any full replacement. The permit requires compliance with current Denver Building Code wind and snow load requirements. Importantly, Denver does not allow simple re-roofing over existing shingles (lay-over) — full tear-off to the deck is required. Many suburban Denver jurisdictions (Arvada, Lakewood, Thornton, Westminster) have similar requirements. Working without a permit on a Denver roof replacement is a code violation and can affect insurance coverage if the unpermitted work is discovered during a claim.