Our Roofing Services | Grinnell, IA
Grinnell Roofing & Maintenance provides residential and commercial roofing services throughout Grinnell and Elberon, Greene, Kesley, Malvern, Nemaha. Free estimates on every service listed here.
Roof Replacement
Full roof replacement starts with a complete tear-off down to the deck. We inspect every board for rot or soft spots. In Grinnell, we find decking damage on about 30% of tear-offs. Damaged sections get replaced with CDX plywood before anything else goes on. Then we build up: ice and water shield in valleys and at eaves, synthetic underlayment across the full deck, new drip edge on every edge, starter strip, field shingles, hip and ridge caps, and ridge vent. Dumpster, permits, and cleanup included.
Get a Free Quote →Roof Repair
Our roof repair process: inspect the issue, identify the root cause, quote the fix, do the work, warranty the repair. Simple. If the root cause is widespread (poor ventilation causes ice dams, for example), we'll recommend addressing that too. But the choice is always yours.
Get a Free Quote →Storm Damage Repair
After a major storm in Grinnell, we mobilize quickly. Emergency tarping within 24 hours to prevent secondary water damage. Then a full damage inspection once conditions allow. We use drone photography on larger commercial roofs to document everything the adjuster needs.
Get a Free Quote →New Roof Installation
New construction underlayment per IRC R905 and ASTM D226 (felt) or ASTM D6757 (synthetic). Ice barrier per ASTM D1970 required at eaves in climate zones with average January temperature below 25°F. We install ice and water shield regardless. It's cheap insurance against ice dams and wind-driven rain. Drip edge per IRC R905.2.8.5 on eave and rake edges. Proper starter strip with factory sealant for wind resistance from day one.
Get a Free Quote →Metal Roofing
We install 24-gauge and 26-gauge steel standing seam panels in Galvalume and pre-painted finishes. Concealed fastener clips allow the panels to expand and contract with temperature changes without stress on the fasteners. That's why standing seam doesn't leak. The clips float.
Get a Free Quote →Shingle Roofing
Designer shingles like GAF Camelot II, Owens Corning Berkshire, and CertainTeed Grand Manor mimic premium materials. Slate, cedar shake, heavy wood. They cost 30-50% more than standard architectural shingles but the curb appeal is worth it for higher-end Grinnell homes. Full manufacturer warranties included.
Get a Free Quote →Flat Roofing
Modified bitumen is the best choice for residential flat roofs and low-traffic commercial applications in Grinnell. We torch-apply SBS-modified base and cap sheets in a two-ply system. Granulated cap sheet handles foot traffic and UV exposure. 15-20 year warranty.
Get a Free Quote →Commercial Roofing
Commercial roofing in Grinnell means flat and low-slope systems: TPO, EPDM, PVC, modified bitumen, and built-up roofing. We install and repair all of them. Retail, warehouse, office, restaurant, multi-family. Our commercial crew handles buildings from 2,000 to 100,000 square feet.
Get a Free Quote →Gutter Installation
Half-round copper gutters with round downspouts are the premium install for historic and high-end homes in Grinnell. We solder every joint on-site with 50/50 tin-lead solder. Copper weathers to a green patina in Iowa's climate over 5-7 years. For modern aluminum installs, we use Spectra Metals .027 gauge seamless stock in 25+ color options with Raytec hidden hangers rated to 25 lbs per linear foot of combined debris and ice load.
Get a Free Quote →Roof Inspection
Annual inspections catch small problems early. A cracked pipe boot is a $150 repair. A year of water leaking through that crack causes $3,000+ in ceiling, insulation, and drywall damage. We recommend an inspection every 2-3 years for newer roofs, annually for roofs over 15 years.
Get a Free Quote →Emergency Roof Repair
Emergency tarping is step one. Stop the water. We secure heavy-duty poly tarps over the damaged area using 2x4 nailer boards attached to the deck. Once the immediate threat is contained, we schedule the permanent repair within 48-72 hours.
Get a Free Quote →Skylight Installation
Skylight replacement on existing curbs: VELUX FCM curb-mount units install directly on the existing curb frame. No structural modification, no interior disruption. The FCM sits on the curb with a built-in sill pan and integrates with a new QCM flashing kit. Low-E4 laminated glass with argon fill provides R-value improvements over older skylights. Solar-powered blinds and venting available on VSS models. The 10-year No Leak Installation Warranty requires VELUX-certified installation with the complete flashing system. We're certified in Grinnell.
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