A-1 Contractors, Inc. — Roofing contractor in Great Falls, MT
A-1 Contractors is one of a small number of GAF Master Elite-certified roofing companies in Montana. GAF awards that certification to the top 3% of roofing contractors in the United States, and earning it requires financial stability checks, adequate insurance, and a consistent record of customer satisfaction. The Great Falls company was established in 2006 and also holds Malarkey Emerald Pro, Owens Corning Preferred, and Pabco Preferred certifications, along with NRCA membership. Their work covers asphalt shingles, metal roofing, and flat roofs, backed by a 20-year no-dollar-limit warranty on flat systems.
Services
- Asphalt shingle roofing: New installs and re-roofs using GAF products with manufacturer warranty coverage; asphalt remains their highest-volume work
- Metal roofing: Corrugated panels, PBR, standing-seam, and Tuff Rib metal roof systems for residential and commercial applications where longevity is the priority
- Flat roofing: Flat and low-slope systems with 20-year no-dollar-limit warranty; 24-hour emergency service available for urgent repairs
Service area
Great Falls, MT and north-central Montana.
Why it’s on home.renovation.reviews
GAF Master Elite certification isn’t cosmetic — it requires ongoing performance verification and applies to fewer than 3% of US roofing contractors. A-1 Contractors is among a very small group of Montana roofers holding that credential, which makes them a meaningful differentiator in the Great Falls market when warranty protection and certified installation quality matter. The Owens Corning Preferred status adds a second manufacturer certification layer. Owens Corning Preferred contractors are required to maintain continuing education credits and pass installation quality checks, running parallel to the GAF Master Elite requirements rather than duplicating them.
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