(406) 453-7000
(406) 453-7000North Central Montana’s #1 Commercial Roofing Company
Providing Roofing, Gutter Installation, and Foundation Repair Services Since 2006
Lifetime Product & Workmanship Warranties
Dedicated To Giving Back To Our Communities
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The Experts in Commercial Roofing Service in Great Falls
When your business relies on a solid, leak-free roof, there’s no room for guesswork. A-1 Contractors, Inc. is Great Falls’s trusted name in commercial roofing, delivering reliable, efficient, and long-lasting roofing solutions backed by over two decades of experience. We understand the demands of local weather, and we work around your schedule to minimize downtime.
Our expert Great Falls roofing team handles everything from complex flat roofing systems to energy-efficient membrane replacements—all with professionalism and precision. Whether you’re protecting a warehouse, retail space, or office building, we help make sure your business stays open, dry, and protected.
Protect your investment with Great Falls’s commercial roofing pros.
Types of Commercial Roofs We Install
We install a variety of high-performance commercial roofing systems built for durability and energy efficiency.
EPDM Roofing
EPDM (Ethylene Propylene Diene Monomer) is a cost-effective rubber membrane ideal for flat and low-slope roofs. It offers excellent UV resistance and performs well in cold climates, making it a smart choice for Great Falls businesses.
PVC Roofing
PVC (Polyvinyl Chloride) roofing is known for its long lifespan, chemical resistance, and strong waterproofing capabilities. It’s ideal for restaurants or businesses that deal with grease, oils, or harsh runoff.
TPO Roofing
TPO (Thermoplastic Olefin) is an affordable, reflective, and energy-efficient membrane that’s perfect for businesses looking to reduce cooling costs. It’s easy to install and maintain, with great performance in a range of weather conditions.
Roof Coatings
Roof coatings add an extra layer of protection to any roofing project so that your roof’s integrity is secure. They can also be used on older roofs that are becoming less effective against the climate. Rolled or sprayed roof coatings are a smart way to make sure your roof is and stays sealed year after year. Moreover, if the roof does start to wear thin, add another coat, and you’ll be ready for the next decade of wear and tear.
Flat Roofing
Flat roofing is popular in many commercial buildings due to the great protection and minimal maintenance they offer. Because flat roofs have almost no slope, a proper installation is required to avoid any future problems. We’ll be happy to walk you through your options to see whether or not a flat roof is right for your building, as well as how to best maintain your flat roof going forward.
Commercial Roofing Comparison Table
| Feature | EPDM Roofing | PVC Roofing | TPO Roofing |
|---|---|---|---|
| Lifespan | 20–30 years | 25–30 years | 20–30 years |
| Cost (Initial) | Lower | Higher | Moderate |
| Energy Efficiency | Moderate | High | High (reflective surface) |
| Chemical Resistance | Moderate | Excellent | Moderate |
| Installation Speed | Fast | Moderate | Fast |
| Ideal Use | Offices, warehouses | Food service, chemical exposure | Retail, mixed-use |
Roofing Services We Offer
Commercial Roof Installation
Our team designs and installs durable, energy-efficient commercial roofing systems that meet your building’s needs and budget while ensuring long-term performance.
Commercial Roof Repair
From emergency leaks to long-term wear and tear, we provide fast, accurate, and dependable commercial roof repairs that prevent disruptions and extend your roof’s life.
Commercial Roofing Replacement
When your roof is aging or failing, we offer full-system commercial roof replacement services that improve insulation, reflectivity, and durability, all with minimal downtime to your business.
Commercial Projects We Work On
From commercial buildings to multifamily apartment complexes, we provide commercial services to a wide variety of clients. This includes:
Commercial Roofing FAQs
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What type of roofing is best for my commercial building?
The best roofing system depends on your building’s structure, usage, and exposure to environmental stressors. We’ll help you choose between EPDM, PVC, or TPO based on performance, budget, and your long-term goals.
How long does a commercial roof typically last?
Most commercial flat roofing systems last between 20–30 years, depending on materials and maintenance. Regular inspections and timely repairs can significantly extend that lifespan.
Can you install a new roof without disrupting my business?
Yes. We work efficiently and can schedule work during off-hours or in stages to reduce disruption. Our crews prioritize cleanliness, safety, and clear communication to keep your operations running smoothly.
Do you offer commercial roof inspections and maintenance?
Absolutely. Regular inspections help identify minor issues before they escalate. We offer professional maintenance programs tailored to commercial buildings of all sizes.
Choose A-1 Contractors, Inc. as Your Commercial Roofing Company
With over 20 years of experience, a commitment to quality, and unmatched local expertise, A-1 Contractors, Inc. is the trusted choice for commercial roofing in Great Falls.
Let us help protect your business
The Best Roofing North Central Montana Can Provide
A-1 Contractors, Inc.
2755 Fern Dr, Great Falls
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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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This company was so great to work with! Every single person involved in the project conducted themselves in a professional and friendly manner.
From the … More initial conversation to the completion of the project, everything was handled beyond my expectations.
They were quick, communicative and respectful. We are impressed by how our project was handled and thrilled with the results.
Our roof looks great!!
I would recommend this company to anyone and can’t say enough good things! A few points that stood out to me the most:
- I knew I wanted to do business with A-1 Contractors Inc. immediately after reading through the first page of their bid. It was thorough, informative, and gave me confidence in their abilities.
- I was also impressed with their punctuality on the job site. The crew had arrived on time and within 5-10 minutes of their arrival our old roof was being taken off.
- Every single crew member addressed us as “Sir” and/or “Ma’am” and had a smile on their face the entire time. It was very apparent that they liked each other and their job. There was a sense of pride amongst their team and it showed in their work.
- Finally, our roof was completed in 2 days and our yard was left cleaner than when they arrived!! I couldn’t be more impressed. -
A-1 Contractors are the real deal! Danny and his crew made my roof replacement project a breeze. On time every morning, 7:15am. Every person that I dealt … More with, Danny, Amber, Sarah and everyone on the crew was polite, efficient and knowledgeable. They cleaned up at the end of every day and were attentive to the adjacent property owners as well.
I own a 100+ year old commercial building. I'm grateful for Danny and his crew's knowledge and experience. Also, Danny was able to reach out to his dad for his experience to address our unique roof.
A-1 Contractors went above and beyond to ensure that our roofing project was completed in a timely manner and done right!
I highly recommend A-1 Contractors for your roofing needs. -
Huge wind storm took off a section of roofing on a Friday night. Called A1 hoping someone would answer at 9 PM on a Friday and they did. Next morning they … More showed up and temporarily patched because they didn't have the correct color. Monday they show up with the correct color and completed the repair. I am super impressed, appreciative and thankful for their professionalism.
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