What We Do | Derry Roofing & Maintenance Roofing Services
Derry Roofing & Maintenance handles every roofing job from a single-shingle repair to a full commercial re-roof. Here's what we do in Derry.
Roof Replacement
Replacement cost depends on your roof size, pitch, and material choice. We quote by the square (100 sq ft) and itemize everything so you can compare apples to apples. In Derry, most residential replacements fall between $8,500 and $24,000. We offer financing if that helps.
Get a Free Quote →Roof Repair
We repair asphalt shingle, metal, flat membrane, and tile roofs. Our trucks carry common repair materials so most fixes happen same-visit. Shingle repairs, flashing replacement, pipe boot swaps, ridge cap fixes, valley re-flashing. All routine for our Derry crews.
Get a Free Quote →Storm Damage Repair
We handle storm damage claims from start to finish: inspection, documentation, claim filing, adjuster meeting, supplement if needed, repair or replacement, and final inspection. Our supplement team has recovered thousands in additional coverage for Derry homeowners that adjusters initially missed.
Get a Free Quote →New Roof Installation
New construction means we get to do everything right from scratch. No compromises, no working around someone else's mistakes. Ice and water shield where it belongs, properly lapped underlayment, correct nailing patterns, and ventilation sized to the space. That's a roof that lasts.
Get a Free Quote →Metal Roofing
Corrugated metal and R-panel (exposed fastener) at $5-$8/sq ft installed for agricultural buildings, shops, carports, and covered patios in Derry. 29-gauge is budget, 26-gauge is standard. For residential, we recommend 24-gauge standing seam at $12-$22/sq ft. The aesthetics and longevity justify the premium. DaVinci composite shake and slate profiles offer the look of natural materials with metal's performance. Perfect for Derry HOA neighborhoods that restrict metal roofing appearance.
Get a Free Quote →Shingle Roofing
GAF Timberline HDZ. The best-selling shingle in North America. With StrikeZone nailing area for consistent fastener placement. Class A fire rating per UL 790, Class 4 impact resistance per UL 2218 (when installed in the GAF Roof System), and Class H wind rating per ASTM D7158 (130 mph). We install Timberline in the full GAF system to qualify for Golden Pledge warranty: 25-year non-prorated workmanship plus 50-year materials with WindProven limited wind warranty (no max speed). That warranty is why we recommend GAF for most Derry homes.
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
We install Carlisle SynTec and Firestone TPO membrane systems in 60-mil and 80-mil thickness over minimum R-25 polyiso insulation (more in climate zones requiring it). Seams hot-air welded at 900°F+ and tested with a seam probe. Fully adhered systems for wind uplift zones per FM I-90 or I-120. Mechanically attached for re-roofs over existing insulation. NRCA member, trained per manufacturer specifications.
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 Derry's worst rain.
Get a Free Quote →Roof Inspection
Commercial and flat roof inspections include infrared moisture scanning with Flir E8 thermal cameras. Trapped moisture in the insulation layer shows as temperature differentials on the thermal image. No need to cut core samples everywhere. We identify wet zones, then core sample the suspect areas to confirm. This approach gives you a precise repair scope at a fraction of the cost of exploratory tear-offs.
Get a Free Quote →Emergency Roof Repair
After we secure the tarp and stop the leak, we photograph and document everything while the damage is fresh. This documentation is critical for insurance claims. Adjusters want to see the damage before any repairs are made.
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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