Vermont climate, wind & energy-code drivers
- ENERGY STAR climate zone: Northern — coldest climates, U-factor priority (U ≤ 0.27 in coldest tier)
- IECC climate zone: 6A
- Maximum U-factor: 0.27 (IECC 2021 + state amendments)
- Maximum SHGC: No limit (cold climate)
- ASCE 7-22 design wind speed: 105 mph (Risk Category II)
- Hurricane impact-rated requirement: No statewide impact-rated requirement
- Dominant residential frame material: Vinyl frame — dominant in most climates, lowest cost-per-window
- Historic-preservation overlay prevalence: Moderate — selected metro historic districts with review
- EPA RRP lead-safe trigger (pre-1978 housing share): Very high — 60%+ pre-1978 housing share, mandatory EPA RRP lead-safe certification on every replacement
Vermont licensing, lead-safe & permits
- License status: No statewide trade license
- License board: Vermont has no statewide residential builder license — Vermont Office of Professional Regulation oversees specialty trades only (official site)
- Permit: town or municipal building permit required for window opening modification; no state license; Vermont Residential Building Energy Standards (RBES) above-IECC-baseline U-factor mandatory at U-0.27 maximum window U-factor; replacement-only same-size installs typically permit-exempt
How window replacement costs vary in Vermont
State-specific code or insurance rule: Vermont has no statewide residential builder license — Vermont Office of Professional Regulation oversees only specialty trades like plumbers, electricians, and oil-burner installers, leaving window contractor competency and bond entirely to municipal building departments and homeowner due diligence, plus Vermont Residential Building Energy Standards (RBES) §30 V.S.A. §51 separately mandates above-IECC-2021-baseline U-0.27 maximum window U-factor on every Vermont residential installation, making Vermont one of the few small states with mandatory Stretch Code-equivalent window U-factor with very-high pre-1978 housing share driving mandatory EPA RRP lead-safe certification.
Cities in Vermont
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Compare local window replacement pricing in Burlington.
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