Cenco Roofing provides attic insulation in ZIP 80503 (Longmont, Colorado) — a Lakewood-based Owens Corning Platinum Preferred and GAF Master Elite contractor serving Boulder 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
Attic Insulation · ZIP 80503 · Longmont, Boulder County
Attic Insulation in ZIP 80503 (Longmont, Colorado)
ZIP 80503 covers 12 census-defined areas of Longmont and roughly 37,594 residents. Cenco delivers Attic Insulation across every one of them from the Lakewood headquarters — same crews, same 271-product catalog, same dual Owens Corning Platinum + GAF Master Elite credentials that unlock warranty tiers most roofers cannot register.
Most of the roughly 16,672 homes in 80503 were insulated to whatever the code minimum was the year they were built, and in older Front Range housing stock that measures far below what Colorado now calls for. We measure what your attic actually has during the free assessment and quote the gap — not a standard package sized to a truckload.
By the numbers, 80503 is about 16,672 housing units (65.9% owner-occupied), a median home value of $816,201, 12 census-defined areas. The ZIP also reaches into Niwot, Gunbarrel, Boulder. Crews dispatch daily from the Lakewood headquarters, pull Boulder County permits, and know how Longmont HOAs handle roof approvals. Boulder County recorded 1 hail and 15 wind events in the last 90 days (most recent: 2026-06-26).
Every project starts with a free on-roof inspection. If your roof is fine, you get that in writing.
Learn more about how we approach attic insulation — materials, process, and warranties.
ZIP 80503 at a Glance
- 37,594Residents
- 16,672Housing units
- 65.9%Owner-occupied
- $816,201Median home value
Source: U.S. Census Bureau, American Community Survey 5-year estimates.
Storm History
Boulder County recorded 1 hail and 15 wind events in the last 90 days (most recent: 2026-06-26). Largest hail: 1″ — big enough to bruise asphalt shingles even when nothing looks wrong from the street.
Source: NOAA/NWS storm reports, trailing 90-day window.
Other Services in 80503
Frequently Asked Questions
Does Cenco Roofing do Attic Insulation in 80503?
Yes u2014 ZIP 80503 is part of Cenco's Longmont service area, worked year-round by crews dispatching from the Lakewood headquarters across all 12 census-defined areas inside it. Yes u2014 Colorado licensed and insured, BBB A+ accredited, Owens Corning Platinum Preferred and GAF Master Elite (held by under 2% of roofers), serving the Front Range since 2013 with 4.9 stars across 840+ Google reviews.
How long does Attic Insulation take in 80503?
Most attics in 80503 are a single day u2014 air-sealing first, then insulation to the depth the measurement calls for. The free assessment comes before any of it: we measure what the attic actually has, check the ventilation, and quote the gap to Colorado-appropriate R-values in writing rather than selling a standard package.
Has there been hail near 80503 recently?
Boulder County recorded 1 hail and 15 wind events in the last 90 days (most recent: 2026-06-26). If a swath crossed 80503, get the free on-roof inspection before the claim window closes u2014 hail bruises the shingle mat without visibly tearing it, so the damage that totals a roof is routinely invisible from the street.
What Homeowners Say
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.
- 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.