The #1 Commercial Roofing Contractor In Wisconsin
Zero Downtime Installation for Building Owners & General Contractors
Free Estimate Within 48 HoursProud Partners of Nasi Roofing
The Prefabricated Difference
Unlike traditional roofing methods, our Duro-Last prefabricated system means:
- Up to 85% fewer seams - factory-welded for superior reliability
- No building shutdown required during installation
- Faster, quieter installation process
- Custom-fit at the factory for your exact specifications
- Materials ready within two weeks
- Proposal delivered within 7-14 days
Versatile Expertise Across All Commercial Sectors
Healthcare Facilities
Educational Institutions
Food Service & Retail
Government & Municipal
Industrial & Manufacturing
Religious & Community
Why Wisconsin's Top Businesses Choose Nasi Roofing
- Over 2,000 successful installations since 1983
- 10+ million square feet of roofing completed
- Consistently rated #1 Duro-Last contractor in Wisconsin
- Platinum Contractor status with 95%+ quality scores
- Family legacy of roofing innovation
- Multi-location coverage across Wisconsin & Upper Michigan
.webp)
.svg)
Wisconsin's Most Awarded Commercial Roofing Contractor
Setting the Standard in Commercial Roofing Since 1983
9x Wisconsin Contractor of the Year
recognizing our commitment to excellence in commercial roofing solutions and customer service.
.svg)
8x Platinum Contractor
placing us in the top 3% of Duro-Last contractors nationwide. Awarded for superior installation quality and over 500,000 square feet installed annually.
.svg)
Golden Eagle Award
Consistently recognized for exceptional project execution with Golden Eagle Awards ($2M+ sales) from 2020-2023 and Chairman Awards ($1M+ sales) spanning 2015-2021.
.svg)
Edge-to-Edge Excellence Award
Awarded for outstanding large-scale installations including the 140,000 sq. ft. Rapid River Public Schools complex and energy-efficiency transformation at Crivitz High School.
Your Hassle-Free Roofing Project Timeline
Unlike traditional roofing methods, our Duro-Last prefabricated system means:
- Initial Contact (Day 1) Contact us for your commercial roofing needs
- Expert Assessment (Days 2-7) Comprehensive roof evaluation and measurements
- Detailed Proposal (Days 7-14) Receive your custom proposal and specifications
- Material Preparation (Days 14-28) Factory prefabrication of your custom roofing system
- Professional Installation Quick, quiet installation with zero business interruption
Complete Commercial Roofing Solutions
New Commercial Roof Installation
Custom Commercial Flat Roofs
Commercial Roof Replacement
Low-Slope Roof Installation
Industrial Roof Installation
Single-Ply Membrane Roofing
Factory Prefabricated Roofing
PVC Roofing Systems
Energy-Efficient Roofing Systems
Commercial Roof Repair & Maintenance
Emergency Roof Repairs
Warranty Service & Support
Roof Leak Detection & Repair
Annual Roof Assessments
Preventive Maintenance Programs
Storm Damage Repair
Commercial Roof Inspections
Roof System Evaluations
Specialized Commercial Services
Metal Roof Retrofitting
Roof Penetration Sealing
Flat Roof Restoration
Roof Drain Installation
Commercial Roof Coating
Commercial Gutter Systems
HVAC Unit Flashing
Parapet Wall Capping
Energy-Efficient Solutions
Cool Roof Installation
Energy Cost Reduction Systems
Thermal Roof Insulation
Solar-Ready Roof Preparation
Energy Star Certified Systems
Sustainable Roofing Options
Heat-Reflective Roofing
Green Building Solutions
Serving Commercial & Industrial Properties Throughout Wisconsin
Primary Service Regions
- Greater Appleton Area
- Fox Valley Region
- Green Bay Metropolitan Area
- Oshkosh
- Fond du Lac
- Milwaukee Region
Northern Wisconsin Coverage
- Minocqua Area
- Superior
- Rhinelander
- Hurley Region
- Ashland
- Eagle River
Upper Michigan Service Area
- Iron Mountain
- Houghton
- Menominee
- Marquette
- Escanaba
Additional Service Areas
- Madison Region
- Eau Claire
- Stevens Point
- La Crosse
- Wausau
- Select Areas of Minnesota & Iowa (Through General Contractor Partnerships)
.webp)
The Nasi Quality Guarantee
Industry-leading warranties up to 30 years
Double inspection process - internal and Duro-Last certified
Ongoing maintenance support
Expert repair services when needed
%20(1).svg)
Start Your Commercial Roofing Project
Free Detailed Estimate
Custom Project Timeline
Energy Savings Analysis
