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Window Replacement Cost in Maine (2026)

Window replacements in Maine typically run $6,200–$16,400 for a 10-window 1,500 sq ft single-story full-house window replacement, with vinyl-frame double-hung the dominant residential choice and ENERGY STAR Northern climate-zone glazing requirements (U-factor ≤ 0.27, no SHGC limit). Maine's combination of 60-inch frost depth across the northern half (Aroostook, Penobscot, Piscataquis counties), -30°F winter low temperatures driving Maine state energy code U-0.27 maximum-U-factor mandate, persistent Atlantic salt-spray on every Cumberland, York, Lincoln, Knox, Waldo, Hancock, and Washington county exposure driving aluminum-clad-wood frame replacement at 5-7 year intervals, F3 freeze-thaw cycling, and very-high pre-1978 housing share driving EPA RRP lead-safe certification drives extreme cold-climate-and-historic-housing-driven glazing selection.

State Maine
Cities Covered 1
Typical 10-window 1,500 sq ft single-story full-house window replacement $6,200 – $16,400
BLS carpenter wage $23.34/hr

Maine 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-7
  • Maximum U-factor: 0.27 (IECC 2021 + state amendments)
  • Maximum SHGC: No limit (cold climate)
  • ASCE 7-22 design wind speed: 115 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

Maine licensing, lead-safe & permits

  • License status: No statewide trade license
  • License board: Maine has no statewide residential builder license — Maine Office of Professional & Financial Regulation oversees specialty trades only (official site)
  • Permit: town or municipal building permit required for window opening modification; no state license; Maine MUBEC adoption mandates IRC + IECC compliance with Maine state energy code amendments requiring U-0.27 minimum window U-factor; replacement-only same-size installs typically permit-exempt

How window replacement costs vary in Maine

State-specific code or insurance rule: Maine has no statewide residential builder license — Maine Office of Professional & Financial 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 Maine Uniform Building & Energy Code (MUBEC) since 2010 separately mandates U-0.27 maximum window U-factor on every Maine residential installation as one of the lowest mandatory U-factor mandates in the lower 48 to address 60-inch frost depth across Aroostook County and -30°F winter low temperatures, with very-high pre-1978 housing share (65%+ across the state, second-highest in the country) driving mandatory EPA RRP lead-safe certification on every Maine residential window replacement.

Cities in Maine

Compare window replacement pricing for 1 city across Maine.

Portland, ME

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More state guides

Pricing ranges reflect Maine market labor (BLS OEWS carpenter (window installers) mean $23.34/hr) and Woogoro regional cost modeling. For the most localized estimate, see your nearest city page above.