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★★★★★ 5 Stars · 291+ Reviews

Onset Commercial Roofing | TPO, EPDM, Modified Bitumen

Same-Day Appointments Available  ·  24/7 Emergency Service

Onset Roofing & Maintenance — GAF-Certified Roofing Contractor in Onset, MA. Licensed, Bonded & Insured.

Call (877) 349-1553
📞 (877) 349-1553

Hail hit Onset? Free damage inspections — limited availability this week.

Same-Day Service Licensed & Insured Free Estimates
<60 Min
Response Time
22+
Years Experience
5
Star Rating
291+
Happy Reviews

Onset Roofing & Maintenance has been installing and repairing commercial roofs in Onset for 22 years. Retail strip centers, warehouses, office buildings, restaurants, multi-family complexes. Our commercial crew handles buildings from 2,000 to 100,000 square feet.

Our Commercial Roofing Process

1

Building Inspection

We inspect the entire commercial roof: membrane condition, seam integrity, flashing details, penetration seals, drain function, and insulation condition. Core samples reveal moisture levels in the existing system. You receive a detailed written report.

2

Scope & Estimate

We present options when they exist: repair vs. replace, TPO vs. PVC, 15-year vs. 20-year warranty. Each option is priced so you can make an informed decision based on your budget and building plans.

3

Professional Installation

Factory-trained crews using proper equipment, hot-air welders for TPO/PVC, torch equipment for modified bitumen, and adhesive systems for EPDM. Every seam, flashing, and penetration detail inspected before we leave.

4

Warranty Activation

Final roof inspection with photo documentation. Warranty paperwork provided. We recommend an annual maintenance plan to catch issues early and maintain warranty compliance.

What Onset Customers Say

★★★★★ 5/5 from 291+ reviews
★★★★★

"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."

J
James S., Onset
★★★★★

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

A
Alex K., Onset
★★★★★

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

K
Karen J., Onset
Join 291+ Happy Customers — Call (877) 349-1553

Why Choose Onset Roofing & Maintenance for Commercial Roofing?

Emergency Response

Commercial roof leaks damage inventory, equipment, and operations. Emergency response within 24 hours for active leaks on commercial buildings in Onset.

Manufacturer Certified

Certified installer for major commercial membrane manufacturers including Carlisle, Firestone, GAF, and Johns Manville. Factory training and warranty authorization.

Maintenance Programs

Annual and semi-annual inspection contracts catch problems early and keep your warranty valid. Preventive maintenance costs a fraction of emergency repairs.

Honest Assessments

If a repair or coating extends your roof's life 10+ years, we recommend that over a full replacement. We save you money when the roof allows it.

Commercial Roofing FAQ

Inadequate slope, clogged drains, compressed insulation, or settling of the building structure. Ponding water degrades membrane faster and voids some warranties. We solve it with tapered insulation systems that create positive drainage.

Yes. Annual and semi-annual inspection contracts. We check seams, flashings, drains, and penetrations. Fix small issues before they become expensive ones. Regular maintenance also keeps your manufacturer warranty valid.

It depends on your building. TPO is popular for its reflectivity and energy savings. PVC resists chemicals and grease, best for restaurants. EPDM is proven and cost-effective. Modified bitumen handles foot traffic well. We recommend based on your specific conditions.

Have More Questions? Call (877) 349-1553

SAME-DAY APPOINTMENTS AVAILABLE

Protect Your Home — Call Onset Roofing & Maintenance Today.

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

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

★★★★★ 5/5 from 291+ Reviews  ·  Licensed  ·  Insured

About Our Onset Commercial Roofing Services

TPO is our most-installed commercial membrane in Onset. White reflective surface for energy efficiency, hot-air welded seams that are stronger than the membrane itself, and 15-20 year manufacturer warranties. We install 60-mil and 80-mil systems, fully adhered or mechanically attached, over polyiso insulation.

Call (877) 349-1553 for a free commercial roof assessment. We inspect the membrane, flashings, drainage, penetrations, and overall condition. You get a written report with photos and our honest recommendation, repair, coat, or replace.

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