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Window Replacement Cost in New Hampshire (2026)

Window replacements in New Hampshire typically run $6,200–$15,400 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 ≤ 0.3, no SHGC limit). New Hampshire's combination of 48-inch frost depth across the southern half plus deeper frost in the White Mountains, F3 freeze-thaw cycling driving aggressive sealant degradation, persistent Atlantic salt-spray on every Rockingham county exposure, very-high pre-1978 housing share driving mandatory EPA RRP lead-safe certification, and ENERGY STAR Northern climate zone driving low-U-factor (≤0.30) glazing requirement statewide drives extreme cold-climate-and-historic-housing-driven glazing selection.

State New Hampshire
Cities Covered 3
Typical 10-window 1,500 sq ft single-story full-house window replacement $6,200 – $15,400
BLS carpenter wage $23.84/hr

New Hampshire climate, wind & energy-code drivers

  • ENERGY STAR climate zone: Northern — coldest climates, U-factor priority (U ≤ 0.27 in coldest tier)
  • IECC climate zone: 5A-6A
  • Maximum U-factor: 0.3 (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

New Hampshire licensing, lead-safe & permits

  • License status: No statewide trade license
  • License board: New Hampshire has no statewide residential builder license — NH Office of Professional Licensure & Certification oversees specialty trades only (official site)
  • Permit: town or municipal building permit required for window opening modification; no state license; New Hampshire State Building Code 2018 IRC + IECC mandatory; replacement-only same-size installs typically permit-exempt

How window replacement costs vary in New Hampshire

State-specific code or insurance rule: New Hampshire has no statewide residential builder license — NH Office of Professional Licensure & Certification 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 very-high pre-1978 housing share (60%+ across NH, third-highest in the country) driving mandatory EPA RRP lead-safe certification on every New Hampshire residential window replacement, particularly in Manchester, Nashua, Concord, Portsmouth, and Dover historic neighborhoods.

Cities in New Hampshire

Compare window replacement pricing for 3 cities across New Hampshire.

Concord, NH

Compare local window replacement pricing in Concord.

Manchester, NH

Compare local window replacement pricing in Manchester.

Nashua, NH

Compare local window replacement pricing in Nashua.

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More state guides

Pricing ranges reflect New Hampshire market labor (BLS OEWS carpenter (window installers) mean $23.84/hr) and Woogoro regional cost modeling. For the most localized estimate, see your nearest city page above.