For older homes with drafts, fiberglass entry doors by ProVia are excellent at stopping air leakage. Coastal Windows & Exteriors is a woman-owned exterior remodeling company with 7,000+ installations completed since 2011, serving 730+ towns across Massachusetts, New Hampshire and Maine.
These doors feature engineered channels in the side rails and header to accommodate a larger polyurethane core. A computer-controlled process fills every crevice with foam, resulting in unprecedented insulation and an industry-lowest recorded heat conduction measurement (U-Factor of up to 0.09). To fit more insulation, these doors are 2.5″ thick, which is 43% thicker than standard exterior doors.
What Draft-Prone Homes Need to Know
- Certified savings: ENERGY STAR certified doors and windows can cut heating and cooling bills up to 13%. Request a free estimate to check your entry.
- Sealing gaps: Sealing minor gaps and holes cuts home air leakage by 25% to 30%. Older frames leak most in winter, so tight entry door installation matters.
- Fiberglass value: A grand fiberglass entry door returns about 87% at resale, averaging about $11,953 in New England. This grand tier sits at the premium end, not standard pricing.
- Steel compares: Steel entry doors deliver about 216% resale return nationally, averaging $2,547 in New England. That price sits well below the grand fiberglass tier.
- Top priority: Durability and longevity rated important by 100% of door professionals surveyed. Maintenance ranked a priority for 78% of them.
Option | Resale Return | Est. New England Cost | Best For |
Grand fiberglass entry door | About 87% | About $11,953 (grand tier) | Homeowners wanting a premium entry |
Steel entry door | About 216% (national) | About $2,547 | Homeowners prioritizing resale and budget |
Choosing Your Door
Top Recommendation: Fiberglass suits older homes wanting a premium entry with strong 87% resale return. Book a free estimate to compare finishes.
Best for Resale: Steel delivers about 216% return nationally at a much lower cost. Ask us for a steel quote.
Smart for Drafts: Any ENERGY STAR certified door, sealed tightly, controls drafts and trims bills. Schedule an entry assessment.
Ready to stop the drafts? Start with a free door assessment and tight, certified installation. Coastal Windows & Exteriors is a woman-owned, family-run company founded in 2011. Our team brings 7,000+ installations across MA, NH, and ME, backed by a 4.8-star rating with 1,000+ reviews.
Request a free door estimate from Coastal Windows & Exteriors.
Browse our complete door FAQ guide from Coastal Windows & Exteriors.
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Still have questions about Are Fiberglass Entry Doors Better for Older Homes with Drafts? See the areas we serve and talk to your local doors contractor.
Last Updated: August 2026
Sources:
- Installing ENERGY STAR certified windows, doors, and skylights can shrink energy bills by up to 13% on heating and cooling costs nationwide, versus non-certified products. ENERGY STAR Residential Windows, Doors, & Skylights, the official page on certified product energy savings. (Accessed August 2026)
- A grand fiberglass entry door returns about 87% at resale and averages about $11,953, while a steel door averages about $2,547 in New England. JLC 2025 Cost vs. Value Report, New England, regional entry-door cost and resale figures. (2026)
- Steel entry doors return about 216% at resale. JLC 2025 Cost vs. Value Report, national resale return data for entry-door projects. (2026)
- Durability and longevity is the top priority, rated important by 100% of professionals surveyed, with maintenance a priority for 78%. Fixr Windows and Doors Industry Report, 2026 survey of windows and doors contractors and specialists. (2026)
