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โ˜…โ˜…โ˜…โ˜…โ˜… 4.9 Stars ยท 210+ Reviews

Thornwood Flat Roof Repair & Installation

Same-Day Appointments Available  ยท  24/7 Emergency Service

Thornwood Roofing & Maintenance | Professional Roofing Services in Thornwood, NY. Free Inspections.

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Same-Day Service Licensed & Insured Free Estimates
<60 Min
Response Time
14+
Years Experience
4.9
Star Rating
210+
Happy Reviews

Whether it's a residential flat section over a room addition, a garage with a flat top, or a full commercial building, Thornwood Roofing & Maintenance handles flat roofing in Thornwood with the same attention to detail. TPO for reflectivity, EPDM for budget, PVC for chemical resistance, modified bitumen for foot traffic.

TPO is our most-installed flat roof membrane. White reflective surface reduces cooling costs, hot-air welded seams create a watertight bond stronger than the membrane itself, and manufacturer warranties run 15-20 years. We install 60-mil and 80-mil TPO, fully adhered or mechanically attached over polyiso insulation.

flat roofing services in Thornwood

Our Flat Roofing Process

1

Membrane Assessment

Before recommending repair, coating, or replacement, we inspect the entire flat roof system. Membrane condition, insulation integrity, and drainage patterns all factor into our recommendation.

2

Your Options

Based on inspection findings, we recommend the right solution: targeted repair, a coating system, or full replacement. Each option is priced with material specs, warranty terms, and expected lifespan.

3

Expert Flat Roof Crew

Insulation board cut and installed with staggered joints. Membrane installed over insulation per manufacturer specs. All penetrations (pipes, vents, HVAC curbs) receive custom-fabricated flashing. Drains and scuppers cleared and properly connected to the new membrane system.

4

Final Inspection

After installation, we verify drainage by checking water flow to all drain points. No ponding. Every seam tested. Manufacturer warranty registered, 15-20 year coverage depending on system and build-up.

What Thornwood Customers Say

โ˜…โ˜…โ˜…โ˜…โ˜… 4.9/5 from 210+ reviews
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"We called expecting to wait days, but they were here the same afternoon. Fair pricing, quality work, and they kept us informed every step of the way."

L
Lisa M., Thornwood
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"From the first phone call to the final walkthrough, everything was seamless. The team was courteous and efficient. Already recommended them to two friends."

C
Chris W., Thornwood
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"Responded fast and got the job done right the first time. Crew was polite, professional, and cleaned up everything. Would absolutely hire again."

C
Chris R., Thornwood
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Why Choose Thornwood Roofing & Maintenance for Flat Roofing?

All Flat Roof Systems

TPO, EPDM, PVC, modified bitumen, built-up roofing, and coatings. We install the right system for your building, not whatever we have on the truck.

14+ Years Flat Roof Experience

Thornwood Roofing & Maintenance has been installing and repairing flat roofs in Thornwood for 14 years. Residential flat sections, commercial buildings, and everything in between.

Maintenance Programs

Semi-annual flat roof inspections keep your warranty valid and catch problems early. Drain clearing, seam checks, and flashing inspection, all documented.

Drainage Solutions

We solve ponding water with tapered insulation systems. Minimum quarter-inch per foot slope to drains or edges. Ponding is the number one flat roof killer. We eliminate it.

Flat Roofing FAQ

Usually, yes. Most flat roof leaks originate at seams, flashings, or penetrations, all repairable. If the leak is from widespread membrane failure or waterlogged insulation, replacement is the better long-term solution.

It depends on the application. TPO is great for energy efficiency. PVC resists grease and chemicals. EPDM is proven and affordable. Modified bitumen handles foot traffic well. We recommend based on your building's specific needs and budget.

Yes. Semi-annual inspections checking seams, flashings, drains, and membrane condition prevent small issues from becoming expensive repairs. Drain clearing is especially important. Clogged drains cause ponding that damages the membrane.

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24/7 emergency service. Most appointments available within 48 hours.

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โ˜…โ˜…โ˜…โ˜…โ˜… 4.9/5 from 210+ Reviews  ยท  Licensed  ยท  Insured

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