Roof Repair & Replacement in Diablo, CA
Same-Day Appointments Available · 24/7 Emergency Service
Owens Corning Preferred Contractor. 13+ years experience. Free roof inspections in Diablo.
Call (877) 586-1316Free estimates · Financing options available
O Neals Roofing & Maintenance provides full-service roofing to homeowners and businesses in Diablo, CA. Our crews work in Diablo regularly and know the area well: the building codes, the HOA requirements, and the weather patterns that wear roofs down.
Our Services in Diablo
What Diablo Customers Say
"Had a bad leak around the chimney flashing after a storm. O Neals Roofing & Maintenance came out next day, found the failed step flashing, replaced it, and sealed everything properly. No more dripping. Solid work."
"What sold me was the inspection report. Detailed photos of every damaged area, measurements, written explanation of what needed repair versus replacement. No other company gave us anything close to that level of documentation."
"Hail punched through half our shingles last spring. O Neals Roofing & Maintenance handled the entire insurance claim — met the adjuster, filed the supplement, and we paid nothing out of pocket besides the deductible."
Why Diablo Residents Choose O Neals Roofing & Maintenance
Manufacturer-Certified Installation
We hold certifications from GAF, Owens Corning, and CertainTeed. That means the manufacturers have trained and vetted our crews and will back our installations with their strongest warranties. Your Diablo roof gets factory-level quality control.
No Subcontractors
Every Diablo roof is installed by our own trained crews, not subcontractors pulled from a labor pool. That means consistent quality, accountability, and a crew that knows our standards from the first nail to the last drip edge.
4.8/5 Stars | 378+ Reviews
Our reputation is built one roof at a time. 378+ homeowners across O Neals, Diablo, and surrounding areas have rated us 4.8/5 stars. We earn every review. No incentives, no discounts for feedback.
13+ Years of Experience
We've been installing and repairing roofs for over 13 years. That experience shows in how we handle complex roof lines, unexpected deck damage, and insurance claim disputes. We've seen everything and know how to handle it.
About Our Diablo Roofing Services
Our Diablo roofing services include full tear-offs, re-roofs, repairs, emergency tarping, ventilation upgrades, gutter replacement, and skylight installation. If it's on or attached to your roof, we do it.
Ready to get your Diablo roof handled? Call (877) 586-1316 for a free estimate. We respond to every inquiry within a few hours and schedule inspections within 48 hours, often sooner for storm damage situations.
Diablo is one of our most active service areas. We have jobs running in Diablo constantly, which means quick response times and crews that know the area.