Planning a home project in Idaho? This page brings together every cost guide we publish for the state — installed prices, yearly savings and payback for 2026 — plus the verified Idaho rebate programs that can cut the bill.
In Idaho, the swing seasons and real winters and summers shapes the energy year, and installation costs here sit close to the national average — both are built into every range below.
Published Idaho Guides
- Heat Pump Cost in Idaho (2026 Guide): Prices, Savings & Rebates
- Attic Insulation Cost in Idaho (2026 Guide): Prices, Savings & Rebates
Home Project Costs in Idaho at a Glance
| Project | Typical cost in Idaho | Yearly savings | Simple payback | Guide |
|---|---|---|---|---|
| Central AC Replacement | $4,550–$9,150 | $325 | 21.1 years | Coming soon |
| Heat Pump | $6,250–$14,900 | $805 | 13.1 years | Read the guide |
| Attic Insulation | $1,300–$2,950 | $435 | 4.9 years | Read the guide |
| Roof Replacement | $6,900–$16,550 | $60 | — | Coming soon |
| Solar Panels | $13,250–$19,650 | $1,125 | 14.6 years | Coming soon |
| Tankless Water Heater | $2,400–$4,450 | $115 | 29.8 years | Coming soon |
| Replacement Windows | $5,800–$12,100 | $335 | 26.7 years | Coming soon |
Verified Rebates & Incentives in Idaho
- Idaho Power Heat Pump Rebate — Up to $800 for qualifying heat pumps. Idaho Power customers; efficiency minimums apply. Covers: Heat Pump. Source: HomeUpgradeCheck state rebate index
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.