HVAC Cost in Alstead, NH in 2026
Most HVAC projects in Alstead, NH cost between $5,000 and $16,000. The typical price is $9,000.
Alstead prices track the national average closely. Costs here are close enough to the national picture that the adjustment barely moves the number.
What drives the price
- System size in tons and efficiency rating
- Heat pump versus furnace plus AC
- Ductwork condition and whether it is replaced
- Electrical or gas line changes
Usually included
- Equipment and refrigerant lines
- Installation, startup and commissioning
- New thermostat
- Haul-away of the old unit
Usually extra
- Duct replacement
- Electrical panel upgrades
- Permits and inspections
HVAC contractors in Alstead, NH
Businesses listed on Google near Alstead, NH. We are not affiliated with them and do not vet them — always confirm licensing and insurance before hiring.
Triumph Home Services
4.9(114 reviews)
428 Main St Ste 8, Keene, NH 03431
Kierce Heat Pumps and Mechanical LLC
5.0(44 reviews)
355 Fitzwilliam Rd, Richmond, NH 03470
ALL Weather HVAC
4.7(33 reviews)
429 Calavant Hill Rd, Charlestown, NH 03603
Everett E. Houghton Co. Inc.
4.9(16 reviews)
279 Main St, Walpole, NH 03608
Matt Beam Plumbing & Heating LLC
4.6(16 reviews)
59 Library Ave, Alstead, NH 03602
Climate Control Mechanical, LLC
5.0(12 reviews)
32 Vessel Rock Rd, Gilsum, NH 03448