HVAC Installation in Claremont, NH
A new system here will heat from September through May and cool from July through July every year. Tell us about the house, and a licensed contractor who covers Sullivan County will get in touch.
Tell us about the job
It takes about a minute.
Claremont asks a lot of a heating and cooling system
Winter nights here average 13°F from December through February. A furnace or heat pump has to hold a house against that kind of cold, and it has to do it for nine months, September through May, before the season turns. Cooling asks less of the system, just July, when afternoons average 77°F.
Nearly half the homes in the area heat with fuel oil, so an oil furnace or boiler is a familiar setup here, and a new system has to fit what the house already runs on. Winters in this part of New Hampshire also bring real storms, 37 of them over the last ten years, along with 58 damaging wind events. Statewide, 22% of households lost power for 24 hours or more in 2024, and a system that depends on electricity to run its igniter or blower only works when that power is there.
- 9 months
- September through May, your system heats
- 1 months
- July through July, it cools
- 13°F
- the average winter night it heats against
- 77°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
New Hampshire has no state license for HVAC contractors.
There is no state list of HVAC contractors here and nothing to check a name against. New Hampshire does not test contractors, does not register them, and keeps no record of who does this work in Sullivan County or anywhere else in the state.
On this job, the protection comes from the local building office instead of any state license. In most cities and counties, putting in a new furnace, air conditioner or heat pump needs a permit, and the finished work gets an inspection before it is signed off. That inspection is what catches a bad gas connection or a system that was not installed to code, since New Hampshire has no license standing behind the person doing the work.
Source: New Hampshire General Court
- When should I replace my HVAC system?
- Replace it when it can no longer get you through a Claremont winter without breaking down, or when the repairs keep adding up. Furnaces here run from September through May, nine months of the year, so a failure at 13 degrees is not a small inconvenience. If your system is old and you are already calling for repairs more than once a season, replacing it before it fails on a cold night is the safer bet than waiting for it to quit.
- Should I replace my furnace and air conditioner at the same time?
- If both are old, yes, it usually makes sense to plan for it. A furnace and air conditioner installed together are matched to work as one system, and replacing one while keeping a much older unit on the other side can mean the newer part is held back by the old one. That said, if your air conditioner is still young and only the furnace has failed, there is no reason to replace a unit that is working fine. A contractor can look at the age and condition of each and tell you honestly whether pairing them makes sense for your house.
- What happens during an HVAC installation?
- A contractor removes the old equipment, sets the new furnace, air conditioner or heat pump in place, and connects it to your ductwork, gas line or electrical circuit and, if needed, a condensate drain. Once it is running, they check refrigerant charge or gas pressure, airflow, and that the thermostat is talking to the system correctly. In Claremont this work needs a permit from the local building office, and the job is not finished until the town inspects it. That inspection is there for your protection, so do not skip it even if a contractor suggests you can.