Planning a home project in New Hampshire? This page brings together every cost guide we publish for the state — installed prices, yearly savings and payback for 2026 — plus the verified New Hampshire rebate programs that can cut the bill.
In New Hampshire, the long heating season shapes the energy year, and installation costs here sit close to the national average — both are built into every range below.
Published New Hampshire Guides
- Heat Pump Cost in New Hampshire (2026 Guide): Prices, Savings & Rebates
- Attic Insulation Cost in New Hampshire (2026 Guide): Prices, Savings & Rebates
Home Project Costs in New Hampshire at a Glance
| Project | Typical cost in New Hampshire | Yearly savings | Simple payback | Guide |
|---|---|---|---|---|
| Central AC Replacement | $5,000–$10,000 | $180 | — | Coming soon |
| Heat Pump | $6,800–$16,250 | $740 | 15.6 years | Read the guide |
| Attic Insulation | $1,450–$3,350 | $440 | 5.5 years | Read the guide |
| Roof Replacement | $7,550–$18,150 | $30 | — | Coming soon |
| Solar Panels | $14,950–$22,150 | $1,645 | 11.3 years | Coming soon |
| Tankless Water Heater | $2,750–$5,100 | $130 | 30.2 years | Coming soon |
| Replacement Windows | $6,150–$12,850 | $325 | 29.2 years | Coming soon |
Verified Rebates & Incentives in New Hampshire
- NHSaves Heat Pump Rebate — $250 per ton standard; up to $2,000 per ton for systems replacing electric-resistance heat. Customers of participating NH utilities (Eversource, Liberty, Unitil); the enhanced rate needs pre-verification before installation and is capped at 5 tons per account. Covers: Heat Pump. Source: NHSaves
- NHSaves Central Air Conditioner Rebate — $70 per ton for ENERGY STAR certified central air conditioners. Customers of participating NH utilities; equipment must be ENERGY STAR certified. Covers: Central AC Replacement. Source: NHSaves
Amounts and rules change — confirm eligibility with the program before you sign a contract, and note that several programs require action before installation.
Figures compiled from public sources, updated October 2026. Local quotes vary — get 2–3 estimates.