Free Estimate 📞 (877) 586-1316 24/7
Professional Roofing hero
โ˜…โ˜…โ˜…โ˜…โ˜… 5/5 from 338+ reviews

Derry Roofing Contractor. GAF Certified

16+ years installing asphalt shingle roofs, metal roofing, and flat roof systems across Derry and New Hampshire. Free estimates, no pressure. Ever.

16+
Years
500+
Projects
5
Rating
16+
Years Experience
500+
Projects Completed
5
Star Rating (338+ Reviews)
โœ“
Licensed & Insured

Our Services

Our Roofing Services

Full-service roofing contractor in Derry โ€” from asphalt shingle roof replacement and emergency hail damage repair to metal roofing, flat roof systems, and gutter installation. Every project is installed by manufacturer-certified crews with workmanship warranties.

roof replacement
FREE ESTIMATE

Roof Replacement

We don't do shortcuts on replacements. Tear off the old roof, check the decking for soft spots, install synthetic underlayment, drip edge, starter strip, shingles, ridge vent. The whole system. Your roof is only as good as the layers underneath.

roof repair
SAME-DAY

Roof Repair

Roof repairs get worse when you ignore them. A $400 flashing repair turns into $4,000 of water damage inside the wall. Our Derry crew can usually get there within 48 hours for non-emergency repairs.

storm damage repair
LICENSED

Storm Damage Repair

HAAG Certified Inspector on every storm claim we handle in Derry. HAAG certification is the insurance industry standard for forensic roof inspection. Adjusters trust our reports. We document hail hits per square, wind creasing, and granule displacement. FM 4473 hail resistance ratings determine whether your roof qualifies for full replacement or spot repair.

new roof installation
TOP RATED

New Roof Installation

New roof installation on new construction means getting the ventilation right from the start. We calculate intake and exhaust requirements based on attic square footage and install the right combination of soffit vents and ridge vent. Saves you money on cooling bills in New Hampshire.

metal roofing
GUARANTEED

Metal Roofing

Standing seam metal roofing with Kynar 500/Hylar 5000 PVDF finish. The coating that keeps color for 40+ years without fading or chalking. We install Sheffield Metals and McElroy Metal panels in 24-gauge Galvalume steel with concealed Z-clips. UL 2218 Class 4 impact resistance. UL 790 Class A fire rating. Wind uplift tested to ASTM E1592. The only roof you'll ever need in Derry.

shingle roofing
INSURED

Shingle Roofing

Your shingle choice determines your warranty, your curb appeal, and how your roof handles New Hampshire weather. We'll show you samples, explain the differences, and let you pick what fits your budget. No pressure.

flat roofing
FREE ESTIMATE

Flat Roofing

PVC roofing membrane for Derry restaurants, commercial kitchens, and any rooftop near grease exhaust. PVC resists animal fats and chemical exposure that destroys TPO and EPDM. We install IB Roof Systems and Duro-Last PVC with heat-welded seams and custom-fabricated accessories. Built-up roofing (BUR) with 3-4 plies of fiberglass felt in hot asphalt is still the longest-proven flat roof system with a 30+ year track record in New Hampshire.

commercial roofing
SAME-DAY

Commercial Roofing

Flat roofs on commercial buildings are a different animal. We install and repair TPO, EPDM, modified bitumen, and built-up systems. Our Derry commercial crew handles retail, warehouse, office, and multi-family buildings.

gutter installation
LICENSED

Gutter Installation

We install 5" and 6" seamless aluminum gutters in Derry. Standard homes get 5", high-volume areas and steeper pitches get 6". Downspouts every 30-40 ft of gutter run with splash blocks or underground drains.

roof inspection
TOP RATED

Roof Inspection

Our Derry roof inspections cover shingles, flashing, pipe boots, ridge vent, soffit, gutters, and decking condition. You get a written report with photos. If nothing's wrong, we tell you that.

emergency roof repair
GUARANTEED

Emergency Roof Repair

Fallen tree limb damage requires structural assessment before repair. We check rafter integrity, decking condition, and whether the ceiling joists below were impacted. If structural members are cracked or displaced, you need a framing carpenter before we re-roof. We coordinate with trusted Derry contractors for structural work. Insurance carriers require separate line items for structural vs. roofing repairs. We document both.

skylight installation
INSURED

Skylight Installation

Tubular skylights bring light into tight spaces. Closets, laundry rooms, interior bathrooms. They use a reflective tube through the attic space, so they work even when the roof is far from the ceiling. Installed in a few hours.

Why Choose Derry Roofing & Maintenance?

Trusted by homeowners and businesses across Derry.

Clean Job Sites

We run magnetic nail sweeps three times. Once during tear-off, once after install, once before we leave. Tarps on the ground, dump trailer in the driveway. Your yard looks the same when we're done.

5-Star Google Rating

338+ homeowners reviewed us. We don't pay for reviews or offer discounts for them. Those are real people who hired us and took the time to say we did a good job.

Manufacturer Certified

GAF Master Elite, Owens Corning Preferred, CertainTeed SELECT ShingleMaster. We carry certifications from the big three. That means factory-trained crews and the best available warranties.

Insurance Claims Handled

Storm damage? We work with your insurance company directly. Free inspection, Xactimate documentation, adjuster meeting on-site. We fight for full replacement when your roof qualifies.

Our Work

Recent Projects

roof replacement project
roof repair project
storm damage repair project
View All Projects โ†’

Simple Process

How It Works

1

Roof Evaluation

Our inspector walks the roof looking at shingle condition, flashing integrity, vent function, and signs of moisture underneath. 30-45 minutes for most Derry homes.

2

Written Estimate

We email or text the proposal so you can review it at home. Questions? Call us. No pressure, no expiration date tricks, no "today-only" pricing.

3

Installation Day

Our crews average 8 years of experience each. They tear off the old roof, inspect the decking, replace any damaged boards, and install your new system from the deck up.

4

Inspection & Cleanup

Our project manager does a final inspection against the manufacturer's installation checklist. We register your warranty the same day. You get the paperwork within a week.

Verified Reviews

What Our Customers Say

โ˜…โ˜…โ˜…โ˜…โ˜… 5/5 from 338+ reviews
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"Asked for a second opinion because another company said I needed a full replacement. Derry Roofing & Maintenance said I only needed valley flashing repair and some shingle replacement. Saved me about $14,000. I trust these guys."

C
Crystal V.
Derry
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"We were quoted $18,500 for a 32-square replacement with Timberline HDZ. They hit the number exactly. No change orders, no surprise fees. That's rare in this business."

K
Kevin O.
Derry
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"Our roof was 22 years old and starting to curl. They did a full tear-off and installed Timberline HDZ in Weathered Wood. Looks incredible. Crew was fast and cleaned up everything."

J
Jeff S.
Derry

Service Areas

Areas We Serve

Derry Roofing & Maintenance provides roofing services throughout Derry and the greater NH area. Free estimates everywhere we serve.

Center Tuftonboro Effingham Grantham Keene Milton Mills North Woodstock Sanbornville Warner Andover Center Harbor
G

Meet the Owner

Gary Mitchell

Owner & Lead Contractor

Gary has been serving Derry for over 16 years, building a reputation on honest work, fair pricing, and crews that treat every home like their own. What started as a one-truck operation has grown into a full-service Roofing company โ€” but the values haven't changed.

"We don't cut corners. Every job gets the same attention to detail whether it's a small repair or a complete replacement. That's how you earn 338+ five-star reviews."

License #198181 16+ Years Experience Locally Owned & Operated

FAQ

Frequently Asked Questions

We install GAF Timberline HDZ, Owens Corning Duration, and CertainTeed Landmark. The three most popular architectural shingles in the country. All three are solid choices. GAF gives us access to the Golden Pledge warranty (25-year workmanship). Owens Corning Duration has SureNail technology for wind resistance. CertainTeed Landmark is a reliable mid-range option. We help you choose based on budget, color preference, and warranty goals.

Common signs: curling or cracking shingles, missing shingles after wind events, granule loss (look in your gutters), daylight visible through the attic, sagging roof deck, and age. Most asphalt roofs last 20-30 years in New Hampshire. If you see any of these, call (877) 586-1316 for a free inspection. We'll be honest about whether you need a replacement or just a repair.

Most residential roof replacements in Derry cost between $8,500 and $24,000. The price depends on your roof size (measured in squares, where 1 square = 100 sq ft), pitch, accessibility, and material choice. Architectural shingles are $350-$550 per square installed. We give free estimates with exact pricing.

One day for most homes. Our crews are experienced and we pre-stage materials the day before install. Bigger or steeper roofs can run to two days. The dumpster shows up at 7 AM and leaves when we're done. Your life gets back to normal fast.

Manufacturer warranties range from 30 years to lifetime depending on the shingle line. Our workmanship warranty covers our labor and installation for the term stated in your contract. The best combo is the GAF Golden Pledge: 50-year material plus 25-year workmanship. That's what being a Master Elite contractor gets you.

Have more questions? Call (877) 586-1316

SAME-DAY APPOINTMENTS AVAILABLE

Get Your Free Roof Inspection Today

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

📞 Call (877) 586-1316

โ˜…โ˜…โ˜…โ˜…โ˜… 5/5 from 338+ Reviews  ยท  Licensed  ยท  Insured