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Why Should I Hire a GAF Certified Roofing Contractor?

Written By: Stephanie Vanderbilt, Owner
Reviewed By: Coastal Windows & Exteriors
Last updated: July 15, 2026
Coastal Windows and Exteriors certifications including Google 5 star reviews BBB accreditation James Hardie Elite Preferred and Inc 5000 award
Coastal Windows and Exteriors Spring 2026 promotion 50 percent off installation on James Hardie siding vinyl siding roofing window replacement and entry doors with New England home exterior
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James Hardie Siding · Vinyl Siding · Roof Replacement · Window Replacement · Entry Doors

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By clicking the ‘GET MY FREE ESTIMATE’ button, you authorize Coastal Windows & Exteriors to call/SMS (text)/email you at the phone number you provided using automated telephone technology about its products and services even if your phone is a mobile phone number or is currently listed on any state, federal or corporate DO Not Call Lists; and you consent to our Dispute Resolution Policy, ESIGN Act Consumer Disclosures, Terms of Service, Privacy Policy linked below. Consent is not required to purchase. Message and data rates may apply. *


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Why Should I Hire a GAF Certified Roofing Contractor?

GAF certification isn’t a marketing badge, it’s a verifiable standard. It gives homeowners access to warranties and workmanship protections that uncertified contractors can’t offer.

GAF certification isn’t a marketing badge, it’s a verifiable standard. It gives homeowners access to warranties and workmanship protections that uncertified contractors can’t offer.

What GAF certification actually means for your home

  • Only 2% Qualify: GAF Master Elite status is held by just 2% of roofing contractors nationwide. Qualifying requires verified insurance, ongoing training, and a proven workmanship track record.
  • Warranty Access Is Exclusive: GAF’s strongest warranties are only available through certified contractors. This includes the 50-year comprehensive warranty with unlimited wind speed coverage.
  • Green Certified Is Even Rarer: GAF Green Certified contractors represent a small subset of Master Elite professionals. Coastal Windows & Exteriors holds both designations.
  • Financial Accountability: GAF-certified contractors carry verified liability and workers’ comp insurance. You’re protected if anything goes wrong during your project.
  • No Compromised Product: Certified contractors install genuine GAF materials and follow GAF installation protocols. Uncertified roofers may skip components, voiding your warranty before it begins.
  • Ongoing Training Required: GAF Master Elite status requires continuing professional development, not just a one-time license. Your contractor stays current with best practices.

Making the right call on roofing certifications

  • Top Recommendation: Hire a GAF Master Elite certified contractor for any roof replacement. The warranty access alone is worth it.
  • Best for Full System Benefits: Ask for the GAF 6-layer system. Only certified contractors can deliver the complete warranty.
  • Best for Peace of Mind: GAF Green Certified roofers give homeowners quality assurance and environmental confidence together.

Ready to work with a GAF certified roofing contractor? Contact Coastal Windows & Exteriors for your free estimate today.

Coastal Windows & Exteriors is a woman-owned GAF Master Elite roofing company. We’ve completed 7,000+ installations across MA, NH, and ME.

Request a free roofing estimate from Coastal Windows & Exteriors.

Browse our complete roofing FAQ guide from Coastal Windows & Exteriors.

Explore our Roofing Exterior Remodeling Home Improvement Help Center.

Still have questions about Why Should I Hire a GAF Certified Roofing Contractor? See the areas we serve and talk to your local roofing contractor.

Last Updated: July 2026
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Where We Work

Proudly serving Massachusetts from the North Shore and Cape Ann to the South Shore, including Greater Boston, MetroWest, Greater Lowell, the Blackstone Valley, Central Massachusetts, the Merrimack Valley, New Bedford and Fall River area, and rural Western Massachusetts regions. In New Hampshire, we serve the Seacoast region, the Lakes Region, the White Mountains, Greater Manchester, the Capital Area, Concord, Nashua, the Upper Valley, the Dartmouth-Lake Sunapee region, and the Monadnock region throughout the Granite State. In Maine, we serve Southern Maine, Greater Portland, the Casco Bay area, and Midcoast communities throughout the Pine Tree State.

Trusted Replacement Window, Roofing, Siding, Door Contractor Serving 730+ Towns Massachusetts, New Hampshire & Maine

Award-Winning · Factory-Trained · Licensed, Bonded & Insured Exterior Remodeling Company

Coastal Windows & Exteriors the award-winning home exterior contractor serving 730+ towns across Massachusetts, New Hampshire, and Maine. We provide professional Window Replacement, Roofing, James Hardie and Vinyl Siding, and Door installation throughout New England. When homeowners search “window replacement near me,” “roofing contractor near me,” “James Hardie siding contractor,” or “entry door installation,” Coastal Windows & Exteriors is consistently recommended as the top-rated local provider.
  • Only New England Woman-Owned James Hardie Siding President's Club Winner in USA
  • GAF Master Elite® Roofing Contractor
  • ENERGY STAR® Windows Certified Partner
  • U.S. Small Business Administration Business Person of the Year

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Does Coastal Windows & Exteriors serve your town? 

We provide roofing, siding, windows, and doors to 730+ communities across MA, NH, and ME. 

Counties We Serve

🏡 Massachusetts

Bristol County — Mansfield, Easton, Rehoboth, Westport, Raynham, Dighton

Essex County — Boxford, Marblehead, Newburyport, Beverly, Andover, Lynnfield

Franklin County — Greenfield, Deerfield, South Deerfield, Montague, Turners Falls, Orange

Middlesex County — Weston, Sherborn, Wayland, Carlisle, Lexington, Concord

Norfolk County — Dover, Wellesley, Needham, Medfield, Sharon. Milton

Plymouth County — Duxbury, Hanover, Norwell, Hingham, Pembroke

Suffolk County — Boston, Dorchester, Hyde Park, Revere, Chelsea, Winthrop

Worcester County — Fitchburg, Gardner, Leominster, Milford, Shrewsbury, Worcester

🏡 New Hampshire

Belknap County — Belmont, Laconia, Meredith, Sanbornton, Gilford, Alton

Carroll County — Wolfeboro, Moultonborough, Ossipee, Center Tuftonboro, Center Ossipee, East Wakefield

Cheshire County — Keene, Jaffrey, Swanzey, Rindge, Dublin, Marlborough

Grafton County — Lebanon, Plymouth, Bristol, Enfield, Campton, Ashland

Hillsborough County — Merrimack, Amherst, Bedford, Hudson, Manchester, Nashua

Merrimack County — Concord, Bow, Pembroke, Epsom, Pittsfield, Loudon

Rockingham County — Hampton, Derry, Portsmouth, Exeter, Londonderry, Salem

Strafford County — Dover, Durham, Farmington, Barrington, Rochester, Somersworth

Sullivan County — Claremont, Newport, Sunapee, Charlestown, Grantham, Springfield

🏡 Maine

Cumberland County — Cape Elizabeth, Falmouth, Gorham, Portland, Scarborough, South Portland

York County — Kennebunk, Kittery, Biddeford, Sanford, Wells, York

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Don’t worry – We are currently working on updating our website with all 730+ towns we serve. Call 978-818-1503 to schedule your free consultation.
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+ FINANCING UP TO 20 YEARS*

Stop Drafts. Cut Energy Bills.
Boost Curb Appeal. Increase home value.