(406) 453-7000
(406) 453-7000North Central Montana’s Leading Roof Replacement Company
Providing Roofing, Gutter Installation, and Foundation Repair Services Since 2006
 24-Hour Emergency Services
Over 20 Years of Experience
 Military Discounts & Return Customer Discount
Quality Residential Roof Replacements in Great Falls
When repairs are no longer enough, A-1 Contractors, Inc. is your trusted partner for complete, high-quality roof replacements that stand up to Montana’s toughest conditions. For over two decades, we’ve helped Great Falls homeowners protect their investments with durable materials, expert craftsmanship, and honest service.
Our experienced Great Falls roofers don’t just replace what’s broken—we upgrade your home’s protection, energy efficiency, and curb appeal. With prompt scheduling, clear communication, and no cut corners, we ensure a smooth, stress-free experience from tear-off to final inspection.
Let’s build the roof your home deserves. Schedule your free estimate today.
Types of Roofs We Replace
No matter the style or structure, we’re equipped to replace a wide range of residential roofs with precision and care.
Asphalt Roof
We specialize in removing aging or storm-damaged asphalt shingle roofs and installing high-performance replacements built to resist wind, water, and sun exposure.
Metal Roof
When it’s time to replace your metal roof, we offer updated systems that provide even greater durability, energy savings, and longevity—perfect for Montana’s harsh climate.
Low Slope/Flat Roof
We replace aging flat and low-slope roofs with modern, watertight systems that prevent pooling and leaks, ideal for additions, garages, or modern home designs.
When Is It Time to Have Your Roof Replaced?
Ignoring roof damage can lead to bigger, more expensive problems. Here are signs it’s time to consider a full replacement:
Curled or Missing Shingles
Shingles that are lifting or falling off leave your roof vulnerable to moisture and rot.
Frequent Leaks
If patch jobs aren’t holding, your roof’s protective layers may be too compromised.
Widespread Granule Loss
Bare shingles can’t block UV rays or water, leading to quick deterioration.
Sagging or Soft Spots
A sagging roof may indicate serious structural damage below the surface.
Roof Age (20+ Years)
Even if problems aren’t visible, older roofs are more likely to fail suddenly.
What Are the Benefits of Having Your Roof Replaced?
Replacing your roof is a major investment—but it pays off in big ways.
Enhanced Protection
A new roof ensures your home is safe from storms, moisture, and temperature swings.
Increased Energy Efficiency
Modern materials and improved insulation can lower your heating and cooling bills.
Boosted Curb Appeal
A new roof instantly elevates the look—and value—of your home.
Peace of Mind
No more constant repairs, leaks, or emergency calls—just reliable protection.
Improved Warranty Coverage
New roofs come with updated warranties, offering added security for years to come.
Roof Replacement FAQs
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How long does a roof replacement take?
Most residential roof replacements take between 1–3 days, depending on the size of your home and the type of materials being installed. We work efficiently while maintaining strict quality standards to get your home protected quickly.
Will my old roof be removed before the new one is installed?
Yes. We always perform a full tear-off to properly inspect the roof deck and ensure your new system is built on a solid, damage-free foundation. This approach ensures longevity and helps prevent hidden issues.
Do I need to move out during a roof replacement?
Not at all. While roofing can be noisy, you can remain in your home throughout the process. We’ll communicate clearly about what to expect and keep the work area clean and safe.
Can you help with insurance claims for storm damage?
Absolutely. We have experience working with insurance providers to help homeowners navigate roof replacement claims after wind, hail, or storm damage. We provide clear documentation and advocate for your needs.
At A-1 Contractors, Inc., we’ve built our reputation on integrity, skill, and results. For over 20 years, Great Falls homeowners have trusted us to provide roofing solutions that are built to last.
Ready to protect your home for decades to come? Schedule your free estimate now.
The Best Roofing North Central Montana Can Provide
A-1 Contractors, Inc.
2755 Fern Dr, Great Falls
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Highly Recommended – Honest & Professional
A-1 Contractors, Inc. truly saved the day! After another company installed a new roof that soon developed … More 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. -
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 … More 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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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 … More 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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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 … More neighbors were impressed with the cleanliness of the job.
SCHEDULE YOUR FREE ROOF ESTIMATE TODAY!
Hire a Team of Roofing Experts You Can Trust