Roof replacement at Grannis Roofing & Maintenance means a clean start. We tear off everything to bare decking, inspect the entire surface for damage, and rebuild using manufacturer-approved materials at every layer. Our Grannis crews do this every day. Most homes are finished in a single day.
Material selection makes a real difference. We install GAF Timberline HDZ, Owens Corning Duration, and CertainTeed Landmark, all architectural shingles with Class A fire ratings and 130+ mph wind warranties. We walk you through the options so you pick the shingle that fits your budget.
Our Roof Replacement Process
Free Roof Inspection
We climb up, walk the entire roof, and take photos of everything we find. Shingle condition, flashing, vents, gutters, and signs of moisture damage underneath. You get a full written report, free, no obligation.
Transparent Pricing
We email or text the proposal so you can review it at home. Material options, warranty details, project timeline, and one flat price. Questions? Call us at (877) 586-1316. We don't do high-pressure sales.
Installation Day
Our crews average 8+ years experience each. Tear-off, decking inspection, ice and water shield, underlayment, drip edge, starter strip, field shingles, hip and ridge caps, and ridge vent, installed in the correct sequence per manufacturer requirements.
Warranty Activation
Our project manager inspects the finished roof against the manufacturer checklist. You get a written workmanship warranty from Grannis Roofing & Maintenance plus the manufacturer warranty registered directly with GAF, Owens Corning, or CertainTeed.
What Grannis Customers Say
"Best experience we've ever had with a home service company. On time, on budget, and the results exceeded what we expected. Truly top-notch."
"Responded fast and got the job done right the first time. Crew was polite, professional, and cleaned up everything. Would absolutely hire again."
"From the first phone call to the final walkthrough, everything was seamless. The team was courteous and efficient. Already recommended them to two friends."
Why Choose Grannis Roofing & Maintenance for Roof Replacement?
No Hidden Fees
The number on your estimate is the number you pay. We price by the square and itemize everything. No surprise charges on installation day.
Clean Job Sites
Three magnetic nail sweeps, tarps on the landscaping, dump trailer in the driveway. Your property looks the same (or better) when we leave.
One-Day Installation
Most residential replacements finished in a single day. Our crews are efficient without cutting corners. Start at 7 AM, done by end of day.
Financing Available
12-month same-as-cash and low-interest options. A new roof is a big investment. We make it manageable without cutting corners on materials.