Home energy rebates in Charlestown, NH
What NHSaves pays in Charlestown this year, what these houses actually need first, and how to hire a contractor who can claim it.
Charlestown at a glance
Charlestown runs along the Connecticut River south of Claremont, with one of the longest and most intact historic main streets in New Hampshire and a rural hinterland of farms and woodlots behind it.
Electric service: Liberty Utilities, with Eversource in parts of town. Rebate program: NHSaves. Income-qualified weatherization: Southwestern Community Services. ZIP: 03603.
What Charlestown houses need
The Main Street houses are early — a lot of Federal and Greek Revival — and share the usual problems of that period: no wall insulation, an unsealed attic plane, central chimneys, and cellars that were never meant to be dry. Outside the village, farmhouses and later additions dominate, and attached ells are common. Ells are routinely the coldest part of these houses and the part most often left out of a retrofit scope.
Local detail worth knowing
Charlestown households qualify for Sullivan County programs through Southwestern Community Services. The town also has a relatively high share of older residents on fixed incomes, for whom the 100% income-qualified weatherization program — not the 75% one — is usually the right door.
The 2026 rebate schedule for Charlestown
Charlestown is in Sullivan County, NH, which means NHSaves sets what you can claim — 75% off insulation and air sealing, and up to $6,250 on a heat pump if you are leaving electric resistance heat.
| Upgrade | NHSaves pays | Notes |
|---|---|---|
| Air sealing & insulation | 75% of installed cost | Cap generally $6,000–$8,000; 100% for income-qualified households |
| Home energy assessment | $100 copay | $400–$600 value, plus $150–$400 of free direct-install items |
| Heat pump — from fossil fuel | $250/ton, max $1,250 | ENERGY STAR Cold Climate, R-32 or R-454B refrigerant |
| Heat pump — from electric resistance | $1,250/ton, max $6,250 | Pre-verification required before installation |
| Central air conditioner | $70/ton | ENERGY STAR certified |
| Wi-Fi thermostat | $85 | With a qualifying heat pump |
2026 installs must be completed by December 30, 2026 with rebate forms postmarked by January 30, 2027.
Income-qualified households in Charlestown access free weatherization — 100% of the cost, not 75% — through Southwestern Community Services, the Community Action Agency for Sullivan County. Receiving fuel assistance is usually enough to establish eligibility.
Where to start
- Get an assessment. A $100 copay buys a $400–$600 diagnostic workup plus free direct-install items. How audits work →
- Do the envelope. Air sealing and insulation carry the biggest rebate on the board. Insulation & air sealing →
- Then size the equipment. A tightened house needs a smaller, cheaper system. Heat pumps → · Mini splits →
- Use a contractor enrolled in the right network — NHSaves participating. This is the part we handle for you.
Near Charlestown
See the full Sullivan County rebate guide or every town we cover.
Figures checked July 2026. Rebate programs change their amounts, caps and equipment requirements during the year, and several are capped by available funding. Confirm the current offer with the program or your contractor before you sign anything.
Charlestown rebate questions
What home energy rebates can I get in Charlestown?
Charlestown is in Sullivan County, NH, so your rebates come from NHSaves: 75% of the cost of air sealing and insulation to a cap generally between $6,000 and $8,000, a $100 home energy assessment, and $250–$1,250 per ton on heat pumps to a maximum of $6,250 for households leaving electric resistance heat.
Who does free weatherization in Charlestown?
Income-qualified households in Charlestown access free weatherization — 100% of the cost, not 75% — through Southwestern Community Services, the Community Action Agency for Sullivan County. Receiving fuel assistance is usually enough to establish eligibility. There is generally a waiting list, so it is worth applying well before the heating season rather than during it.
Do I have to use a New Hampshire contractor?
You have to use a contractor enrolled in the program, which in practice means an NHSaves participating contractor. Plenty of them are based on the Vermont side and hold both credentials — what matters is the enrollment, not the address on the truck. We check this before we introduce anyone.
Is a heat pump worth it in Charlestown?
For most houses here, yes — particularly if you are currently on electric resistance heat, propane, or oil, and especially once the envelope has been tightened. ENERGY STAR Cold Climate equipment produces heat well below 0°F, and most local designs keep a backup for the coldest nights. The cooling you get in July is increasingly not a side benefit. More on heat pumps.
Check your Charlestown rebates
Free and specific to your address. We will confirm what NHSaves pays for your house and introduce you to a contractor enrolled to claim it.