Services | Duncan Roofing & Maintenance | Duncan, AZ
Duncan Roofing & Maintenance provides residential and commercial roofing services throughout Duncan and Douglas, Goodyear, Laveen, Nogales, Pomerene. Free estimates on every service listed here.
Roof Replacement
We replace roofs. It's what we do more than anything else. Our Duncan crews average 15-20 complete tear-off and replacements per month. That kind of volume means we've seen every situation: steep pitches, multiple layers, rotted decking, improper ventilation from the last guy. We fix all of it and install a roof system that's warranted for decades.
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
Wind speeds above 60 mph cause shingle tab lift and adhesive seal failure per ASTM D7158 testing protocols. Our Duncan inspectors check the entire windward exposure. Not just the obvious damage. Poor ventilation causes ice dams which cause water intrusion under the shingle field during freeze-thaw cycles. We document all contributing factors so your insurance claim covers root-cause repairs, not just surface patches.
Get a Free Quote →New Roof Installation
We handle new construction from permits through final inspection. Our Duncan office coordinates with your builder on scheduling, material delivery, and inspection timing. Typical install time is 1-3 days depending on size and complexity.
Get a Free Quote →Metal Roofing
Color options in metal roofing are virtually unlimited. Matte black, charcoal, forest green, copper penny, barn red, slate blue. We order custom colors from Sheffield Metals and McElroy Metal with 40-year fade warranties. Your house, your style.
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 Duncan homes. Full manufacturer warranties included.
Get a Free Quote →Flat Roofing
The number one cause of flat roof failure is ponding water. Standing water that doesn't drain within 48 hours after rain. We solve ponding by installing tapered insulation systems that create positive slope to drains, scuppers, or roof edges. Minimum 1/4" per foot of slope eliminates standing water.
Get a Free Quote →Commercial Roofing
TPO is our most-installed commercial membrane in Duncan. 60-mil thickness, hot-air welded seams, mechanically attached or fully adhered over polyiso insulation. The weld is stronger than the membrane. 15-20 year manufacturer warranties depending on system build-up.
Get a Free Quote →Gutter Installation
Gutter sizing matters more than most homeowners realize. We calculate the effective roof area, local rainfall intensity, and the number of downspout outlets needed to handle peak flow. Undersized gutters overflow. Undersized downspouts back up. We size everything to handle Duncan's worst rain.
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
Our trucks carry 20x30 reinforced tarps, 2x4 lumber, plywood sheets, pipe boots, ridge cap shingles, flashing stock, roofing cement, and neoprene screws. We show up ready to secure your roof, not ready to schedule a follow-up appointment.
Get a Free Quote →Skylight Installation
Skylights done right bring natural light into spaces that need it most. Bathrooms, hallways, closets, kitchens with limited windows. We install VELUX and Fakro units with manufacturer flashing kits that integrate with your existing shingle field. Proper flashing is everything. Bad skylight installs are a leading cause of roof leaks.
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