Trusted Roofing Company Serving Northwest Montana

With years of experience across the valley, Sisu Roofing has become one of the region’s most reliable names in roof repair, replacement, and installation. Our team understands the unique weather challenges of mountain towns like Kalispell, Whitefish, Bigfork, Lakeside, and Columbia Falls, and we tailor every roof for lasting performance.

As a Malarkey Certified Contractor, we combine top-tier materials with precision craftsmanship to protect your home and business for decades.

A residential roof replacement about to begin, with shingles loaded onto the roof.
A roofer installing a new skylight on a pitched roof.
A shingle roof replacement in progress
roofers installing new roofing underlayment
an aerial shot of a roof replacement
Aerial view of workers installing roof shingles on a house with roofing materials and tools spread out on the roof.
a new skylight installed during a roof replacement
Green metal roof with mounted solar panel rails and a person’s boots visible at the top right near green trees.

Our Specialties

Sisu Roofing provides high-quality roofing services for homes and businesses across the Flathead Valley, including:

Every roof we install reflects the same attention to detail and pride in workmanship that’s earned us our reputation. We’re Malarkey Certified, licensed, and locally owned, so you can count on top-tier products and installation backed by factory warranties.

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Local roots

We live and work where you do.

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Certified & insured

Peace of mind backed by credentials.

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Pride in every roof

Because your home deserves nothing less.

Frequently Asked Questions

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How do I know if my roof needs to be replaced or just repaired?

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What types of roofing does Sisu Roofing install?

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Do you work with insurance claims?

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How long does a typical roofing project take?

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Are your roofs covered by warranty?