Look for certification, verified reviews, and a long warranty when choosing a company for roof replacement. Since 2011, Coastal Windows & Exteriors has completed 7,000+ installations across 730+ towns in Massachusetts, New Hampshire and Maine as a woman-owned exterior remodeling company and GAF Master Elite contractor. We encourage homeowners to check our credentials, reviews and warranty terms before they sign anything. Here are the trust signals worth verifying.
Trust Signals Worth Verifying
- Manufacturer Certification: GAF Master Elite status belongs to only 2% of contractors nationwide. That credential requires proper insurance and a documented record of satisfied homeowners.
- Review Volume: A 4.8-star average across 1,000+ reviews carries far more weight than a few kind comments. Consistency across that many jobs reveals true reliability.
- Warranty Strength: Our 50-year comprehensive warranty includes unlimited wind speed coverage. Weak or vague warranty language is often the first red flag.
- Replacement Timing Guidance: A trustworthy company tells you when repairs no longer make sense. GAF recommends professional evaluation for roofs over 20 years old with recurring issues.
- Realistic Cost Conversations: Asphalt replacement averages $35,701 across New England, while metal averages $56,282. An honest estimator explains where your home lands in that range.
- Tax Credit Clarity: A good company can explain whether a new roof qualifies for a federal energy tax credit. Clear answers help you plan the full budget.
Narrowing Your Shortlist
Top Recommendation: A GAF Master Elite contractor with 1,000+ reviews and a 50-year comprehensive warranty.
Best for Budget: Companies offering flexible financing alongside itemized, line-by-line estimates.
Best for Long-Term Value: Full system replacement with ventilation, leak barrier, and ridge cap installed together.
Ready to meet a company that earns trust instead of asking for it? Compare roofing companies, starting with a free inspection from us. You’ll get a written scope before any commitment.
Request a free roofing estimate from Coastal Windows & Exteriors.
Browse our complete roofing FAQ guide from Coastal Windows & Exteriors.
Explore the Coastal Windows & Exteriors Roofing Exterior Remodeling Home Improvement Help Center.
Still have questions about how to find a trusted company for roof replacement? See the areas we serve and talk to your local roofing contractor.
Last Updated: September 2026
Sources:
- The average cost to replace an asphalt roof is $35,701 in New England. JLC 2025 Cost vs. Value: New England, regional project cost data for roofing replacement. (2026)
- A metal roof costs an average of $56,282 in New England. JLC 2025 Cost vs. Value: New England, regional averages for metal roofing projects. (2026)
- Roofs more than 20 years old with extensive damage or recurring issues should be evaluated by a roofing professional. GAF Residential Roofing FAQs, GAF’s advice on replacement timing for aging roofs. (2025)
