When you manage or own commercial property in the Flathead Valley, your roof needs to do more than just meet code—it has to stand up to Montana’s snow, wind, and wide temperature swings while maintaining a clean, professional look.
At Sisu Roofing, we specialize in commercial shingle roofing systems built for long-term performance, compliance, and minimal disruption to your tenants or operations.
Shingle roofs remain a practical and cost-effective solution for many multifamily, HOA, retail, office, and institutional buildings across the Flathead Valley. They offer an ideal mix of durability, curb appeal, and value, especially for steep-slope or mixed-slope properties.
As a Malarkey Certified Installer, Sisu Roofing uses premium shingles engineered for harsh climates, with impact-resistant and algae-resistant options to extend the life of your investment.
We handle everything from tear-offs and replacements to ongoing roof repairs and maintenance, ensuring every project meets manufacturer and Montana building standards.
Our commercial shingle services include:
Architectural and impact-resistant shingles are designed to withstand snow loads, ice, and hail, making them ideal for the Flathead Valley’s unpredictable climate. Our installations include proper underlayment, flashing, and ice/water barriers for full weather protection.
Compared to metal or flat systems, shingles offer a budget-friendly solution without sacrificing aesthetics. They come in dozens of color and style options to complement retail storefronts, office buildings, and residential complexes alike.
When installed correctly, commercial shingle roofs can last 25–30 years or more with simple routine maintenance. We also offer annual inspection programs to help extend lifespan and preserve warranties.
Malarkey’s sustainable shingle technology uses upcycled rubber and plastics, reducing waste and improving performance—helping your property meet modern environmental goals.
We inspect your property, document existing conditions, and provide a clear, itemized proposal—no surprises, no guesswork.
Our team coordinates with tenants, HOAs, and property managers to schedule work around your operations while keeping the site safe and clean.
We remove old materials responsibly and install new shingles, underlayment, and flashing systems according to Malarkey and manufacturer specs.
Every project ends with a thorough inspection, photo documentation, and magnet sweep so your property looks as good as it performs.
We provide commercial shingle roofing services throughout Kalispell, Whitefish, Columbia Falls, Bigfork, Lakeside, Evergreen, Somers, Kila, and surrounding areas.
Whether you manage a townhome community, retail plaza, or office complex, Sisu Roofing delivers the durability and peace of mind your property deserves.
How long does a commercial shingle roof last?
With premium materials and proper ventilation, most commercial shingle roofs last 25–30 years, even in Montana’s climate.
Do you work with HOAs and property managers?
Yes. We frequently coordinate schedules, communication, and documentation with HOAs, boards, and facility managers.
Can shingle roofs handle heavy snow and ice?
Absolutely. We use ice and water barriers, ventilation upgrades, and Class 4 impact-rated shingles to perform in tough conditions.
Do you help with insurance claims for storm damage?
Yes — our team documents conditions and provides reports to help streamline your claim process.
Can you re-roof while businesses or tenants remain open?
Yes. We specialize in occupied-site roofing, with daily cleanup, signage, and safe access maintained throughout the project.
Ready to protect your property with a dependable shingle roofing system?
Call (406) 885-6522 or contact us online to schedule a site assessment and detailed bid.
Sisu Roofing – Built for Montana’s Weather.
Homeowners call us when they want clear communication, clean job sites, and roofs that hold up to real Montana weather.
Malarkey Certified Installer – Access to upgraded shingle systems & manufacturer-backed warranties
Licensed & Insured – Proper coverage for your home and our crew
Local & Accountable – Based in Kila; serving all of the Flathead Valley
We believe great projects start with clear expectations. Here’s what you can count on every time we show up:
Straightforward Quotes – No upsells or hidden costs
Respect for Your Property – Clean job sites and full debris removal
Reliable Scheduling – We show up when we say we will
Follow-Through – We inspect every detail before we call it complete
Emma Robertson
Business Owner
Emma Robertson
Business Owner
Steve Cohen
Small Business Owner
Michael Dell
First-Time Homeowner
© 2025 Sisu Roofing - Designed by Finnspect
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