
Thornton roofs, from Original Thornton to Heritage Todd Creek.
Roof repair, emergency leak service, replacement, and hail restoration across Thornton, from a family company licensed with the City of Thornton.
North metro roofs, same standard.
Thornton is a straight run up I-25 from our Centennial office, and we hold a contractor license with the City of Thornton, so the permit and the city inspection are ours to handle. Often the first call is about a repair: a leak after a storm, shingles lifted by wind, a stain spreading across a ceiling. We trace it from the roof side and fix the cause, and every repair carries a two-year craftsmanship guarantee.
The city was built in waves, and its roofs age the same way. Original Thornton went up in the 1950s, and roofs there often sit on older decking with more than one layer of shingles to take off. The neighborhoods that followed, Woodglen and Hunters Glen among them, are on their second roof or due for it.
North of 120th Avenue, around Eastlake and out to Fallbrook Farms, Trailside, and Heritage Todd Creek, the homes are newer and larger. Their original shingles have taken years of hail, and Class 4 impact-resistant shingles are the upgrade we install most often. Many carriers discount premiums for them.
Thornton's roofing standards draw the line between a repair and a re-roof. Replacing one square or less, 100 square feet, is a repair and needs no permit. Past that, the city requires a permit and every slope with damaged shingles is replaced in full. So we measure first. After hail we inspect for free, document every slope, and meet your adjuster on the roof, with gutters, siding, and window screens in the same scope.

Northglenn, next door to Thornton. Badly worn shingles, then new architectural shingles on a hip roof.
Emergency and leak repair in Thornton
Water does more damage every hour it runs. Call (303) 923-5039 and tell us what you see.
An active leak
We trace it from the roof side, stop it, and repair the cause: a cracked pipe boot, failed flashing, nail pops, or a slope of storm-damaged shingles.
A roof open to the weather
Hail, wind, or a fallen limb opened the roof? We cover it with secured tarps or temporary membrane the same day, then schedule the permanent repair.
After hours
Call the same number. If you reach voicemail, leave the address and a callback number, and we respond as fast as a crew can be dispatched.
Roofing services in Thornton
Free inspections and written proposals throughout Thornton and Adams County. Zip codes 80229, 80233, 80241, 80260, and 80602.
Roof Replacement
Full tear-off and replacement, retail or insurance, with a written scope first.
Roof Repair
Leaks, missing shingles, flashing, and wind damage fixed right, with a warranty.
Storm Damage Restoration
Hail and wind damage documented, repaired, and restored to pre-storm condition.
Hail & Insurance Claims
We document, meet the adjuster, and advocate for the full claim. No extra cost.
Emergency Roof Repair
Same-day tarping and temporary protection when the roof is open to weather.
Class 4 Impact-Resistant Shingles
UL 2218 Class 4 shingles that shrug off hail and may lower your premium.
Metal Roofing
Standing seam and metal panel roofs for homes and buildings that want 40+ years.
Commercial Flat Roofing & Coatings
TPO, EPDM, modified bitumen, and silicone coatings for flat and low-slope roofs.
Gutters, Siding & Exteriors
Gutters, siding, windows, and exterior paint from the same crew, one scope.
Recent work in and around Thornton
Photographs from GEN 3 crews, newest first.
Thornton roofing questions
Yes. When a roof is open to the weather, we cover it with secured tarps or temporary membrane the same day, then schedule the permanent repair. Call (303) 923-5039. After hours, leave the address and a callback number.
Most leaks are repairs: a cracked pipe boot, failed flashing, or a few wind-lifted shingles. Thornton treats one square or less, 100 square feet, as a repair that needs no permit, and we back it with a two-year craftsmanship guarantee. Above that, the city requires a permit and every slope with damaged shingles is replaced in full, so we measure the damage before we recommend either.
The City of Thornton, for addresses inside city limits. A permit is required when more than one square of roofing is replaced. The city inspects mid-roof from photographs sent by text and does the final inspection by video. GEN 3 holds a current contractor license with the city, pulls the permit, and handles both inspections. Unincorporated addresses nearby go through Adams County, where we are also licensed.
Most homeowner policies cover sudden hail and wind damage, less the deductible. We inspect for free, document every slope, and meet the adjuster on the roof. If the damage does not support a claim, we tell you before you file.
Yes. Northglenn borders Thornton and is on the same routes, and we hold a City of Northglenn license as well. The before and after on this page is a Northglenn roof.
Free inspections in Thornton.
Call or send a few details. We will walk the roof, document what we find, and put a real number on it.
