REFRESH YOUR HOME: 50% Off Installation + Financing up to 20 Years + $250 Online Booking Bonus
Portsmouth, NH · Local Install Crew
GAF architectural shingle systems installed by Master Elite crews.







About this product
We install GAF architectural shingle roof systems — deck-to-cap — as a GAF Master Elite contractor, a designation held by fewer than 2% of U.S. roofers. That certification unlocks the Golden Pledge® warranty, which covers workmanship for 25 years. Every roof includes proper attic ventilation, ice-and-water shield at the eaves and valleys, and a full-tear-off (never a lay-over).
Our process
Free roof inspection, measurement, and attic-ventilation assessment
Written scope and shingle color selection
Property protection — tarps over landscaping, siding, and walkways
Full tear-off down to the deck and inspection for rotted sheathing
Ice-and-water shield, synthetic underlayment, shingles, and ridge ventilation
Magnetic nail sweep, cleanup, final inspection, and GAF warranty registration
How it compares
| Feature | GAF Master Elite System | Basic 3-Tab Reroof |
|---|---|---|
| Shingle | GAF Timberline HDZ® architectural | 3-tab |
| Underlayment | Synthetic + I&W shield | 15# felt |
| Tear-off vs. lay-over | Full tear-off | Often lay-over |
| Workmanship warranty | 25-year Golden Pledge® | 1–2 years |
| Shingle life expectancy | 30–50 years | 15–20 years |
Before & After

Gallery

Reviews
★★★★★
"It was time to be proactive on an aging roof and skylights. Coastal offers a GAF Golden Pledge Presidents club warranty to ensure that we are protecting our home. Communication from the beginning to the punctuality and hard work from the crew was top notch. The architectural shingles with black trim, seamless black gutters and leaf guards look incredible. Solar vented skylights from Velux, remote operated with power blinds allowed us to toss the operating pole for the old crank version in the dumpster. Everything was tarped, cleaned and a Magnet nail sweep at completion. Follow up for customer satisfaction solidified the communication from start to finish. Thank you Coastal!"
★★★★★
"My husband and I found massive rot damage under our vinyl siding while in the process of building a new deck. After several quotes and chats with contractors we spoke with Dave Barresi who came out and evaluated everything from top to bottom offering different solutions at different price points and never pressuring us. We ended up replacing all of our windows with Harvey Tributes, all siding with a beautiful fiber cement James Hardie siding, and new gutters. They made it easy, painless, and affordable. I can't recommend them enough. My husband works in the construction field and recognizes high quality work. Coastal was the only company we wanted to work with and Dave was the only guy we trusted. Our friends all want referrals!"
★★★★★
"We recently worked with Coastal Windows & Exteriors to have our siding, roof & gutters replaced. We met with Ryan who was terrific, very professional, thorough, detail-oriented and low pressure. Can’t thank him enough for all the time he took to make sure all aspects of the project were covered to our liking in the contracts. The teams that were sent to do the work were great, very polite, courteous and hard working. They would show up every day (weather permitting) promptly at 7am and work until dark, always cleaning up any debris at the end of the day. The finished product looks great and we're happy with the transformation."
FAQ
Recent projects

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Also in Portsmouth
Cost
Roof pricing comes down to roof size in squares, pitch, the number of layers being torn off, and complexity — valleys, dormers, chimneys, and skylights all add flashing work. Rotted decking found during tear-off, and any ventilation the roof is missing, factor in as well. We inspect and measure the roof before quoting, and the estimate spells out what's included so there are no surprises mid-project.
Current offer
50% Off Installation + Financing up to 20 Years + $250 Online Booking Bonus
Financing
Affordable monthly payments on full-exterior projects, with approved credit.
Service Area
Local crews, same-day dispatch. Not sure if we cover your street? Call 978-818-1503.
ZIP codes served
Roof Replacement in nearby towns
Why Portsmouth chooses Coastal
Award-winning
7,000+ New England homeowners served
Factory-trained installers
James Hardie Elite Preferred
ProVia certified doors