Our Services
Full-service roofing contractor in Grannis — from asphalt shingle roof replacement and emergency hail damage repair to metal roofing, flat roof systems, and gutter installation. Every project is installed by manufacturer-certified crews with workmanship warranties.
Trusted by homeowners and businesses across Grannis.
We get on the roof, take photos, and give you an honest assessment. If you don't need work, we'll tell you. No charge, no obligation, no high-pressure sales pitch.
GAF Master Elite, Owens Corning Preferred, CertainTeed SELECT ShingleMaster. We carry certifications from the big three. That means factory-trained crews and the best available warranties.
Only 3% of roofers earn this certification. It means we can offer the Golden Pledge warranty: 25-year workmanship plus 50-year materials. Best warranty in roofing, full stop.
Storm damage? We work with your insurance company directly. Free inspection, Xactimate documentation, adjuster meeting on-site. We fight for full replacement when your roof qualifies.
Simple Process
Before we quote anything, we inspect everything. Shingles, flashing, pipe boots, ridge vent, soffit, gutters. You get a full written report with photos.
You get a written proposal with material specs, labor breakdown, timeline, and total cost. The number on the quote is the number you pay. No change orders, no hidden fees.
Our crews average 8 years of experience each. They tear off the old roof, inspect the decking, replace any damaged boards, and install your new system from the deck up.
Before we leave: magnetic nail sweep across the entire yard, driveway, and walkways. Dump trailer hauled off. Gutters cleaned out. Your property looks better than when we arrived.
Verified Reviews
"I got a new metal roof. Standing seam in charcoal. Not cheap, but it looks like a completely different house. Their metal crew clearly knows what they're doing. Seams are dead straight."
"Got three quotes for a roof replacement. Grannis Roofing & Maintenance was the middle price but the only one who actually got on the roof and showed me photos. Everyone else just eyeballed it from the driveway."
"Used Grannis Roofing & Maintenance for a leak repair over our bathroom. Turned out to be a cracked pipe boot — $425 fix. Honest guys, could have told me I needed a new roof but they didn't."
Service Areas
From Grannis to Harrison, Kingsland, Mccaskill, Onia, Redfield. We've replaced roofs on every street. Ask your neighbor. Chances are we did theirs.
Meet the Owner
Owner & Lead Contractor
Larry has been serving Grannis for over 20 years, building a reputation on honest work, fair pricing, and crews that treat every home like their own. What started as a one-truck operation has grown into a full-service Roofing company — but the values haven't changed.
"We don't cut corners. Every job gets the same attention to detail whether it's a small repair or a complete replacement. That's how you earn 347+ five-star reviews."
