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★★★★★ 4.9 Stars · 462+ Reviews

Professional Flat Roofing | Doty Roofing & Maintenance

Same-Day Appointments Available  ·  24/7 Emergency Service

Doty Roofing & Maintenance | Professional Roofing Services in Doty, WA. Free Inspections.

Call (877) 349-1553
📞 (877) 349-1553

Storm damage? We deploy tarps and temporary repairs within hours.

Same-Day Service Licensed & Insured Free Estimates
<60 Min
Response Time
20+
Years Experience
4.9
Star Rating
462+
Happy Reviews

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

Our Flat Roofing Process

1

Free Evaluation

Our inspector checks every detail: ponding areas, seam separations, flashing failures, clogged drains, UV degradation, and blistering. Core samples test insulation moisture content. You get photos and an honest assessment.

2

Detailed Proposal

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

Membrane Installation

Our flat roof crew installs per manufacturer specifications and NRCA guidelines. TPO seams hot-air welded and probe-tested. Modified bitumen torch-applied in two plies. EPDM fully adhered with proper lap adhesive. Tapered insulation installed to create positive drainage.

4

Completion & Warranty

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 Doty Customers Say

★★★★★ 4.9/5 from 462+ reviews
★★★★★

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

M
Mark M., Doty
★★★★★

"Our neighbors recommended them and now we understand why. Meticulous attention to detail and they treated our home like it was their own."

J
Jennifer R., Doty
★★★★★

"After getting several quotes, these guys stood out with their honesty and knowledge. No pressure, just straightforward advice and excellent workmanship."

A
Andrew J., Doty
Join 462+ Happy Customers — Call (877) 349-1553

Why Choose Doty 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.

Electronic Leak Detection

We use electronic testing to pinpoint flat roof leaks without destructive investigation. Find the source, fix the source, move on.

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.

20+ Years Flat Roof Experience

Doty Roofing & Maintenance has been installing and repairing flat roofs in Doty for 20 years. Residential flat sections, commercial buildings, and everything in between.

Flat Roofing FAQ

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.

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.

A roof coating is a liquid-applied membrane, usually silicone or acrylic. That extends the life of an existing flat roof by 10-15 years. It works when the existing membrane and insulation are in reasonable shape. We core sample and moisture test to determine if your roof qualifies.

Have More Questions? Call (877) 349-1553

SAME-DAY APPOINTMENTS AVAILABLE

Doty Storm Season Is Here. Is Your Roof Ready?

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

Call Now — Free Estimate
📞 (877) 349-1553

★★★★★ 4.9/5 from 462+ Reviews  ·  Licensed  ·  Insured

About Our Doty Flat Roofing Services

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.

Call (877) 349-1553 for a free flat roof assessment. We inspect the membrane, seams, flashings, drains, and overall condition. Core samples check the insulation for moisture. You get an honest recommendation and a written estimate.

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