Emergency HVAC Repair in Londonderry, NH
No heat on a January night or no AC in an August swelter — request service from an available licensed technician.
AreaLondonderry + nearby
ChoosePhone or online
PrepareIssue · property · timing
Get a Local Callback
Name, number, town — details can wait.
Emergencies Move at Phone Speed
If your Londonderry home is unsafe — freezing, sweltering, or smelling of gas — don't type, dial. Calls to (603) 506-4389 get answered and routed to an available tech ahead of every routine appointment.
Emergency Checklist
- No heat below freezing — act before pipes do
- No AC in dangerous heat with kids, seniors, or pets home
- Propane or gas odor — leave, call your supplier or 911, then arrange repair
- CO alarm — out of the house and 911 first, always
- Burning smell or visible smoke from HVAC equipment
While the Tech Is En Route
- No heat: confirm thermostat, switch, breaker — and check your propane gauge if you're on a tank
- No cool: breaker, filter, and fan-only mode if the lines have iced
- Never run a generator or grill indoors or in the garage
Get a Tech Moving
One call starts a service request with licensed emergency help.
Request Service in Londonderry
Tell us what the system's doing and a pro on the I-93 corridor will be in touch.
Londonderry Resources for This Service
Other Jobs on the Londonderry List
When half a street replaces equipment the same year, it pays to know every option first.