Grand River Roofing & Maintenance | Diagonal Roofing Services
Same-Day Appointments Available · 24/7 Emergency Service
GAF & CertainTeed certified. 20 years in business. Protecting Diagonal roofs from Grand River.
Call (877) 349-1553Free estimates · Financing options available
If your Diagonal home needs a new roof or a repair, Grand River Roofing & Maintenance is the contractor to call. We're based in Grand River and our crews are in Diagonal every week, inspecting roofs, replacing shingles, and handling storm damage claims.
Our Services in Diagonal
What Diagonal Customers Say
"Had a bad leak around the chimney flashing after a storm. Grand River Roofing & Maintenance came out next day, found the failed step flashing, replaced it, and sealed everything properly. No more dripping. Solid work."
"I called about a small leak and expected a hard sell on a full replacement. The inspector showed me it was just a cracked pipe boot — $300 repair instead of a $12,000 roof. Honest company."
"Emergency tarping after a windstorm ripped our ridge cap off. Grand River Roofing & Maintenance had a crew out within three hours and tarped the exposed section before rain moved in. Saved us from interior water damage."
Why Diagonal Residents Choose Grand River Roofing & Maintenance
Free Inspections & Honest Estimates
We don't charge for inspections and we don't pad estimates. If your Diagonal roof needs a repair, we'll tell you. If it needs a replacement, we'll explain exactly why. No high-pressure sales, no scare tactics.
Licensed, Bonded & Insured
Grand River Roofing & Maintenance carries full liability insurance and workers' compensation for every crew member. We're licensed across IA and pull local permits for all Diagonal projects. Your property and your investment are protected.
No Subcontractors
Every Diagonal 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.
4.7/5 Stars | 407+ Reviews
Our reputation is built one roof at a time. 407+ homeowners across Grand River, Diagonal, and surrounding areas have rated us 4.7/5 stars. We earn every review. No incentives, no discounts for feedback.
About Our Diagonal Roofing Services
We don't just install roofs. We inspect them first and give you a straight answer about what you actually need. Sometimes it's a $500 repair, not a $15,000 replacement. Grand River Roofing & Maintenance earns repeat business in Diagonal by being honest.
Call (877) 349-1553 to schedule a free roof inspection in Diagonal. We'll send one of our certified inspectors to assess your roof, document any issues with photos, and deliver a written estimate, usually the same day.
We're just a short drive from Diagonal. Our Grand River crews head out to Diagonal every week for inspections, installations, and repair calls.