A-1 Contractors, Inc.
A-1 Contractors, Inc.
A-1 Contractors, Inc. is a Great Falls roofing contractor serving North Central Montana with residential and commercial roofing, storm-damage repairs, gutter installation and foundation work. A third-generation roofer founded the company, which has grown since 2006.
Last Updated October 3, 2026.
Business Highlights
- A-1 Contractors, Inc. is locally owned.
- A-1 is a GAF Master Elite residential roofing contractor.
- A-1 is a Malarkey Emerald Pro Contractor.
- A-1 is an Owens Corning Preferred Contractor.
- A-1 is a Pabco Preferred Contractor.
- A-1 offers 24-hour emergency services.
- Military and return-customer discounts are available.
- A-1 offers a 20-year No Dollar Limit warranty on GAF flat-roof systems and five- or ten-year workmanship warranties, depending on the job.
Service Area
Great Falls and North Central Montana, including Augusta, Black Eagle, Chester, Choteau, Conrad, Cut Bank, Fairfield, Fort Benton, Havre, Lewistown, Lincoln, Monarch, Neihart, Shelby and Valier.
Local Business Taking Calls
A-1 Contractors, Inc. is one of 8 roofers ProsGrade lists in Great Falls, Montana.
10 services listed, including Residential roofing, Commercial roofing and Storm damage repair. Open weekdays, closed on weekends. Rated 4.8 from 59 reviews.
- Verified listing details
- Service information
- Customer review signals
- Photo gallery
- Public contact information
- Published local profile
How This Business Compares
How A-1 Contractors, Inc. compares with the other 7 roofers on ProsGrade in Great Falls, using public Google ratings and review counts.
- Ranks in the top half of the 8 Great Falls roofers on ProsGrade by Google rating and review volume.
- Has more Google reviews (59) than 6 of the 7 other Great Falls roofers on ProsGrade.
- One of 5 Great Falls roofers on ProsGrade rated 4.7 or higher from at least 10 reviews.
Services Covered
10 services- Residential roofinginstallation, replacement, repair and drone inspections
- Commercial roofingrepair, replacement and maintenance; EPDM, TPO and PVC systems
- Storm damage repairemergency roof repair, insurance claims, ice-dam removal, wind and hail damage
- Guttersinstallation; seamless, K-style and box-style gutters
- Sidingfiber cement, LP SmartSide, Hardie board, metal and composite
- Waterproofingcrawlspaces, waterproof membranes and French drains
- Foundation repairresidential and commercial properties; minor crack repair
- Asphalt shingle roofsthree-tab shingles in a variety of colors and styles
- Metal roofscorrugated, standing seam, Tuff Rib and PBR
- Low-slope and flat roofs
Reviews
What customers say
Customers praise the clean-up, with one saying the crew left no trace of the work. One customer credits estimator Chad with helping sort out insurance paperwork, while another describes A-1 inspecting a roof problem after its previous installer declined to return.
Customer Reviews
Diane Gudatis
Melanie Heckert
Props to A-1 for re-roofing my house during an epic week of wind. Everyone was so easy to work with; most definitely would hire A-1 again. Even my downwind neighbors were impressed with the cleanliness of the job.
kristine conover
Amy Loncki
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Frequently Asked Questions
How long does A-1 take to complete a residential roof replacement?
Most residential roof replacements are completed in under two days.
How does A-1 handle an emergency roof repair?
It sends someone immediately to assess the damage. In many cases, it starts by sealing the roof to keep water and debris out.
Can A-1 help with storm-damage insurance claims?
It can provide advice and documentation to support an insurance claim.








