Extensive Roofing Portfolio

Installed and warrantied over 2,000 flat roofs since 1983

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Duro-last® Flat Roofing Contractor

#1 in Wisconsin and Consistently Among the top in the nation

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Roof Repair + Replacement

Leaky roof? Not energy efficient? We can help.

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Commercial

Industrial

School

Government

Church

Apartment Complex

Healthcare

Restaurant

Commercial Roofing Contractor

Installing Commerical Roofing Solutions in Wisconsin and Michigan

Roofing Services

Free Roofing Estimates
Free Long-Term Budgeting
Free Bid Packets including specifications and bid form
Maintenance and Repair Services

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Commerical Roofing Systems

Discover long-lasting satisfaction and durability with a reliable commerical roof backed by the best warranties out there.

Nasi Roofing is an authorized commerical roofing contractor, installing commercial roofs throughout Wisconsin and Michigan since 1983. We have installed and warrantied over 20 million square feet of membrane.

Our commercial flat roofing company is consistently listed among the top roofing contractors in the nation.

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Metal Retro-fit Roofs

A Duro-Last roof installed over an aging metal roof by our Wisconsin roofing company will give you a better roof than you had to originally and save you money on heating costs.

The Duro-Last roofing system is quick to install because it goes right over your existing roof, eliminating the need for costly tear-offs and disposal.

Your new metal retro fit roof will not crack or leak around penetrations, rust or corrode, require periodic maintenance, creak with temperature changes, or radiate your plant's energy into outerspace.

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Don't worry, we've got you covered

The last thing you need to worry about is the roof over your head.

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