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Business ProfileRoofers in Great Falls, Montana

A-1 Contractors, Inc.

Taking Calls in Great Falls Today 4.80 (59 reviews)(406) 319-3346

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.

Taking Calls
Taking calls through ProsGrade
Listing details

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

Str8pile (Ddub)

100% recommend A1 to do your roof. Insurance paperwork was a nightmare but their estimator Chad bent over backwards to help figure ot out and straighten it out for me and the Insurance. Roof of garage and house were done in 1 day and looked like thery were never there on the clean up. Awesome company.
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Diane Gudatis

Highly Recommended – Honest & Professional A-1 Contractors, Inc. truly saved the day! After another company installed a new roof that soon developed problems, the original installer refused to come back and look at it. A-1 was willing to come out, perform a thorough inspection, and provide professional insight. They were incredibly understanding, helpful, and highly skilled. They restored my trust in quality contracting. I cannot recommend them highly enough for their expertise and integrity.
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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

We highly recommend A-1 contractors! What professionals! And they aren’t kidding when they say no job too big or too small. We needed a new roof on a small home in the mountains, and we needed it before fall weather set in. Joe, Beau, Jacob, Jose, Sean and Bird fit us in and made the drive out to help us on a Sunday. With A-1 we didn’t have to worry about a thing. They were prompt, prepared, and there were no additional or unexpected costs added to our original estimate. The roof was completed as if by magic, and when they left there was no trace of them having been there at all, except for a beautifully installed roof. I love the fact that the company is family owned, now with their second or third generation of family members in charge, and also appreciate the fact that Joe, one of the owners, came out to work side by side, with the rest of his crew. The precision of their work was impressive. It seemed as if every move was finely orchestrated. With their attention to quality and detail, you can tell that this is a team who has worked together for a while, almost making me wish that I needed another roof so that I could call them again.
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Amy Loncki

They are amazing! My mother needed a last minute replacement on her roof for the sale of the house. Within 24 hours they had the estimate back to us and the job scheduled. They did everything they had to so they could squeeze us in last minute. They job was done within two days! We have had roofs replaced before and usually find nails and wood all over the yard after. I couldnt believe how clean the yard was after! They really came through for us in a critical moment. We appreciate them and their professionalism so much!
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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.