★★★★★ 4.8 Stars · 458+ Reviews

Grinnell Roof Installation, Repair & Storm Damage

Same-Day Appointments Available · 24/7 Emergency Service

Winthrop Roofing & Maintenance — GAF Master Elite Certified. Licensed. Insured. Serving Grinnell from Winthrop.

Call (877) 349-1553

📞 (877) 349-1553

Storm damage? We prioritize emergency calls

Same-Day Service Licensed & Insured Free Estimates

<60 Min

Response Time

22+

Years Experience

4.8

Star Rating

458+

Happy Reviews

Looking for a licensed roofer in Grinnell? Winthrop Roofing & Maintenance has been serving Grinnell from our Winthrop location for 22+ years. We handle everything from small leak repairs to full roof replacements with manufacturer-backed warranties.

Our Services in Grinnell

FREE INSPECTION

Roof Replacement

Full tear-off and replacement with GAF Timberline HDZ, Owens Corning Duration, or CertainTeed Landmark shingles. Includes ice and water shield, synthetic underlayment, new drip edge, and ridge ventilation. Most Grinnell roofs completed in a single day.

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SAME-DAY ESTIMATE

Roof Repair

Leak repairs, missing shingle replacement, flashing reseals, pipe boot replacement, and valley repairs. We diagnose the actual problem with a hands-on inspection — no guessing from the ground. Written estimate before any work starts.

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EMERGENCY TARPING

Storm Damage Repair

Hail damage, wind damage, and rain intrusion repair for Grinnell homes. Free storm damage inspections with photo documentation. We handle the insurance claim process from filing through supplement negotiation.

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FREE CONSULTATION

New Roof Installation

New construction and addition roofing with manufacturer-certified installation. We work from architectural plans, coordinate with your builder, and install to factory specs so your warranty is valid from day one.

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40-70 YEAR LIFESPAN

Metal Roofing

Standing seam and exposed fastener metal panels in steel and aluminum. 40 to 70 year lifespan with minimal maintenance. Energy-efficient cool-roof coatings available for Grinnell heat.

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AVAILABLE

Shingle Roofing

Shingle Roofing services for Grinnell — call for details.

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COMMERCIAL & RESIDENTIAL

Flat Roofing

TPO, EPDM, and modified bitumen systems for flat and low-slope roofs. Proper drainage, flashing details, and penetration sealing to prevent ponding water. Commercial and residential flat roofs in Grinnell.

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MAINTENANCE PLANS

Commercial Roofing

TPO, EPDM, PVC, and built-up roofing for Grinnell commercial properties. Office buildings, retail centers, warehouses, and multi-family. Preventive maintenance contracts available to extend roof life.

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AVAILABLE

Gutter Installation

Gutter Installation services for Grinnell — call for details.

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AVAILABLE

Roof Inspection

Roof Inspection services for Grinnell — call for details.

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AVAILABLE

Emergency Roof Repair

Emergency Roof Repair services for Grinnell — call for details.

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AVAILABLE

Skylight Installation

Skylight Installation services for Grinnell — call for details.

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What Grinnell Customers Say

★★★★★

"Hail punched through half our shingles last spring. Winthrop Roofing & Maintenance handled the entire insurance claim — met the adjuster, filed the supplement, and we paid nothing out of pocket besides the deductible."

— Susan W., Grinnell

★★★★★

"Their crew showed up at 7 AM, tore off the old roof, replaced eight sheets of plywood, and had new shingles down before dinner. Jobsite was cleaner when they left than when they arrived."

— William K., Grinnell

Join 458+ Happy Customers — Call (877) 349-1553

Why Grinnell Residents Choose Winthrop Roofing & Maintenance

GAF Master Elite Certified

Only 2% of roofing contractors in the country hold GAF Master Elite certification. That gives Grinnell homeowners access to the Golden Pledge warranty: 25 years on workmanship, 50 years on materials. It's the strongest warranty in the industry.

22+ Years of Experience

We've been installing and repairing roofs for over 22 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.

4.8/5 Stars | 458+ Reviews

Our reputation is built one roof at a time. 458+ homeowners across Winthrop, Grinnell, and surrounding areas have rated us 4.8/5 stars. We earn every review. No incentives, no discounts for feedback.

Licensed, Bonded & Insured

Winthrop Roofing & Maintenance carries full liability insurance and workers' compensation for every crew member. We're licensed across IA and pull local permits for all Grinnell projects. Your property and your investment are protected.

Grinnell Roofing FAQ

You get two warranties: the manufacturer's material warranty (30-50 years depending on the shingle) and our written workmanship warranty. As a GAF Master Elite contractor, we can offer the Golden Pledge. That's 25 years on workmanship plus 50 years on materials.

Most inspections are scheduled within 48 hours. For storm damage or active leaks, we prioritize and can usually get a crew out same-day or next-day. Call (877) 349-1553 and we'll give you a specific timeframe.

Yes. We handle commercial flat roofs (TPO, EPDM, PVC), metal panels, and steep-slope commercial systems. We work on office buildings, retail centers, warehouses, and multi-family properties in Grinnell and surrounding areas.

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SAME-DAY APPOINTMENTS AVAILABLE

Winthrop Roofing & Maintenance Is Booking Grinnell Inspections This Week. Call (877) 349-1553.

24/7 emergency service. Most appointments available within 48 hours.

Call Now — Free Estimate

📞 (877) 349-1553

★★★★★ 4.8/5 from 458+ Reviews · Licensed · Insured

About Our Grinnell Roofing Services

We've completed hundreds of roofing projects across Grinnell, from single-story ranch homes to multi-story commercial buildings. Every project gets a dedicated project manager, a written estimate before work starts, and a final walkthrough when we're done.

Call (877) 349-1553 to schedule a free roof inspection in Grinnell. 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.

Distance from Winthrop to Grinnell means nothing to us. Our crews are already working there. No extra fees, no delays, no subcontractors.

Other Areas We Serve

Kimballton, IA → Manning, IA → New Hampton, IA → Prairie City, IA → Sheldon, IA → Van Horne, IA → Albert City, IA → Boxholm, IA →