Commercial roofing contractor in Metro Detroit.
iSwitch Roofs installs and repairs commercial roofing systems across Metro Detroit. TPO, EPDM, modified bitumen, and commercial metal for property managers, building owners, and general contractors across Oakland, Macomb, Wayne, and Livingston counties. Every installation backed by our 50-year material and workmanship warranty.
What is commercial roofing?
Commercial roofing covers low-slope and flat roof systems used on commercial buildings: warehouses, retail, office buildings, multi-family properties, and light industrial facilities. Unlike steep-slope residential systems, commercial roofing relies on membrane systems, coatings, and drainage design to manage water on near-flat surfaces.
- Typical slope: Under 2:12 pitch (low-slope or flat)
- Common systems: TPO, EPDM, modified bitumen, built-up roofing
- Lifespan: 15 to 30 years for membrane systems; 40 or more years for commercial metal
- Warranty type: 50-year material and workmanship from iSwitch
Built for Michigan. Built to last.
Commercial roofing protects your business, inventory, and tenants. The right system lasts decades with minimal maintenance.
Minimal business disruption
Commercial roofing is scheduled around your operations. Phased installation keeps weather protection intact while we work section by section.
Right system for your building
Flat roofs, low-slope roofs, and metal panel systems each have ideal applications. We recommend based on your building type, budget, and longevity goals.
Code-compliant installation
Michigan commercial building codes cover insulation R-values, wind uplift ratings, and drainage requirements. Every installation meets or exceeds those standards.
Extended manufacturer warranties
Commercial membrane systems carry 15 to 30-year material warranties. As an authorized installer, those warranties are valid and enforceable from day one.
Lower operating costs
A properly insulated and sealed commercial roof reduces heating and cooling loads. For large square footages, the energy savings are measurable year over year.
Preventive maintenance programs
Scheduled inspections and minor repair programs catch small issues before they become costly ones. Maintenance costs a fraction of what premature replacement does.
TPO vs. EPDM vs. modified bitumen.
Not all commercial roofing systems perform the same in Michigan winters. Here is how the common flat roof systems compare.
| Feature | TPO | EPDM | Mod Bitumen |
|---|---|---|---|
| Lifespan | 15 to 30 years | 20 to 30 years | 15 to 20 years |
| Energy Efficiency | High (reflective white) | Moderate | Moderate |
| Cold Weather | Good | Excellent | Good |
| Seam Type | Heat-welded | Adhesive or tape | Torch-applied |
| Installed Cost | $5-$12/sq ft | $4-$10/sq ft | $4-$10/sq ft |
| Maintenance | Low | Low | Moderate |
| Fire Rating | Class A | Class A | Class A |
Choose TPO when:
- Energy efficiency is a priority
- Large flat or low-slope roof area
- LEED certification or green building goals
- Heat-welded seams for maximum watertightness
- Long-term low maintenance over upfront cost
Choose EPDM when:
- Maximum cold-weather flexibility is the priority
- Budget is tighter but long-term durability matters
- Complex roof geometry or many penetrations
- Proven system with a 30-year track record in Michigan
Commercial roofing systems we install.
We work with property managers and building owners to select the right system for your building type, budget, and long-term goals.
TPO (Thermoplastic Polyolefin)
The current market leader in commercial flat roofing. Heat-welded seams create a watertight membrane with strong resistance to UV, punctures, and chemical exposure. Reflective white surface reduces cooling costs. Lifespan: 15 to 30 years.
EPDM (Rubber Roofing)
A synthetic rubber membrane with a 30-year track record in Michigan commercial applications. Highly flexible in cold temperatures, making it resistant to cracking in freeze-thaw cycles. Available in black or reflective white. Lifespan: 20 to 30 years.
Modified Bitumen
A multi-layer asphalt membrane system applied with torch, cold adhesive, or peel-and-stick methods. Strong impact resistance and suitable for roofs with foot traffic. Common on older commercial buildings and additions. Lifespan: 15 to 20 years.
Commercial Metal Roofing
Standing seam metal panels on low-slope or steep commercial roofs. Maximum durability, minimal maintenance, and strong wind uplift resistance. Ideal for industrial, warehouse, and modern commercial architecture. Lifespan: 40 to 60 years.
What to expect from iSwitch Roofs.
Free siding inspection
We evaluate your current siding condition, check for moisture intrusion, and discuss your goals for the upgrade. No pressure, no obligation.
Options and quote
Premium and best-value choices, explained clearly. Itemized pricing with no confusing add-ons. Financing options available if needed.
Professional installation
Protected work areas, correct flashing details, and a clean installation from every panel to every corner. Most projects completed in one to three days.
Final walkthrough and support
We inspect every panel for fit and seal, leave your property clean, and hand over documentation. Support available after install if anything comes up.
WHY ISWITCH ROOFS
Why Metro Detroit property owners choose iSwitch for commercial roofing.
Commercial roofing requires a different level of coordination than residential. Here is what separates our work.
GAF Certified Plus installer
iSwitch Roofs is a GAF Certified Plus installer, placing us in the top tier of Michigan roofing contractors. GAF Certified Plus requires consistent quality standards and verified customer satisfaction.
Michigan licensed and insured
We carry full Michigan contractor licensing and comprehensive general liability insurance. No liability gaps on your property.
Manufacturer-spec installations
We follow manufacturer installation requirements on every commercial job. This is what keeps your material warranty valid from day one.
Free estimates, no pressure
Get a detailed, itemized estimate for your commercial roofing project. We walk you through options and let you decide. No sales tactics.
FREQUENTLY ASKED QUESTIONS
Commercial roofing questions, answered.
How long does a commercial roof last?
Commercial roof lifespan depends on the system. TPO lasts 15 to 30 years, EPDM 20 to 30 years, modified bitumen 15 to 20 years, and commercial metal 40 or more years. Lifespan is heavily influenced by installation quality, drainage design, and maintenance frequency.
What is the best commercial roofing system for Michigan?
TPO and EPDM are both strong performers in Michigan. TPO offers better energy efficiency with its reflective white surface. EPDM has superior cold-temperature flexibility for freeze-thaw cycles. The best choice depends on your building type, energy goals, and budget.
Can a commercial roof be repaired instead of replaced?
In many cases, yes. Localized membrane damage, failed seams, and drainage issues can often be repaired without a full replacement. We always inspect and provide repair versus replacement options with cost comparisons before recommending a full system replacement.
How much does commercial roofing cost?
TPO and EPDM typically run $5 to $12 per square foot installed. Modified bitumen runs $4 to $10. Commercial metal is higher but lasts 40 or more years. We provide itemized estimates so you can compare total cost of ownership, not just installation cost.
How long does a commercial roof installation take?
Most commercial jobs take one to five days depending on roof size and system type. We schedule work to minimize business disruption and provide a clear timeline before work begins.
Does commercial roofing in Michigan require a permit?
Yes. Commercial roofing work requires a building permit in most Michigan municipalities. iSwitch Roofs handles all permit applications as part of the project.
What maintenance does a commercial roof need?
Commercial roofs should be inspected at least twice a year and after major storms. Key tasks include clearing drains and scuppers, inspecting seams and flashings, and resealing penetrations around HVAC equipment. We offer annual maintenance programs.
SERVICE AREA
Serving Southeast Michigan.
iSwitch Roofs installs and repairs commercial roofing across Oakland, Macomb, Wayne, and Livingston counties. Call (248) 997-5929 to discuss your commercial project.
Troy · Auburn Hills · Bloomfield Hills · Birmingham · Clarkston · Waterford · Lake Orion · Rochester · Pontiac · Royal Oak · Warren · Sterling Heights · Shelby Township · Utica · Farmington Hills · Novi · Livonia · Canton · Dearborn · Howell · Brighton · Milford · White Lake · Wixom · Walled Lake
Ready to get your commercial roof assessed?
Get a free inspection and itemized estimate from iSwitch Roofs. We serve commercial property owners and managers across Metro Detroit.