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Metro Detroit • 95 roofers profiles
Flat Roofing in Metro Detroit
Compare verified roofers for flat and low-slope roof repair and replacement. Get free quotes, check licenses, and hire with confidence.
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Featured flat roofing pros
Top Flat Roofing Pros in Metro Detroit
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Detroit Roofing Guy
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ISwitch Roofs
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Motor City Home Improvement
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Roof Advance
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Before you hire
Flat roofing in Detroit: what to expect
Flat roofing in Detroit, Hamtramck, Ferndale and other older Wayne and Oakland County neighborhoods covers porches, rear additions, garages, flats and mixed-use buildings. They do not shed water like a pitched roof, so drainage, seams and flashing decide how long they last. Common systems are EPDM rubber, TPO, and modified bitumen, with built-up tar and gravel on older buildings.
Ponding water, open seams, blistering and failed flashing at parapets and walls are typical problems. Freeze-thaw cycles work water into small defects fast. A good roofer checks the deck and the insulation below for trapped moisture before recommending a patch, coating or replacement. See rubber EPDM roofing and roof coating.
Ready for quotes? Compare flat roof contractors in Detroit, or see commercial roofing for larger buildings.
What a proper job includes
- Inspection of membrane, seams, drains and parapet flashing
- Moisture check of the deck and insulation below
- Removal of failed layers down to a sound deck when replacing
- Tapered insulation or crickets to improve drainage where needed
- New membrane with properly sealed seams and flashing
- Drain, scupper and edge metal details
- Permit, inspections and a written warranty
What drives the price
- Membrane type: EPDM, TPO or modified bitumen
- Roof size, access and height
- Wet insulation or rotted deck to replace
- Drainage fixes such as tapered insulation or new drains
- Parapet walls, penetrations and rooftop equipment
- Tear-off of old built-up or multiple layers
Rebuild Detroit does not publish price ranges. Get written quotes for the same scope and compare.
Permits and licensing in Michigan
The Michigan Residential Code does not list re-roofing among the work exempt from a building permit, so a tear-off or re-cover generally needs a building permit from the city or township where the house legally sits, which is not always the mailing city. In Detroit, BSEED issues it and inspects at tear-off and at final, and a roof that already has two or more layers must be stripped to the deck.
Michigan licenses home roofers through LARA as a Residential Builder or a Maintenance and Alteration Contractor, and roofing is one of the trade categories a Maintenance and Alteration license lists. A license is required when the contract price is above a threshold set by state law, so check the license number on the LARA lookup before you sign.
Verify: LARA license lookup Detroit BSEED Michigan AG: hiring a contractor How We Vet
How to compare quotes
- Ask each roofer which membrane they recommend and why for your roof.
- Ask how they will fix ponding, not just replace the membrane.
- Confirm tear-off versus recover and how wet insulation is handled.
- Check the license on the LARA lookup.
- Compare warranty length and whether it is from the roofer, the manufacturer, or both.
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Common questions
Flat Roofing in Detroit: FAQ
EPDM, TPO and modified bitumen all perform well when installed correctly. The right choice depends on the building, drainage, foot traffic and budget.
Small puddles that dry within a day or two are common. Water that stays longer stresses seams and should be corrected with better drainage.
Yes, if the membrane is sound and the insulation below is dry. Widespread seam failure or wet insulation usually means replacement.
Cost depends on roof size, the membrane (EPDM, TPO or modified bitumen), layers to tear off, wet insulation or rotted decking, drainage changes, parapet and wall flashing, and access.
Generally yes. Re-roofing is not exempt under the Michigan Residential Code, so BSEED in Detroit, or your local building department, issues a permit and inspects the work.
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