Heating and cooling for Nashua, NH
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Emergency HVAC Repair in Nashua, NH

No heat when it's 10°F outside. No AC when it's 95°F and humid. Some problems should be described by phone. A visit still depends on the schedule.

Call Now: (603) 932-6437

Request HVAC Service

By submitting, you agree that your information may be shared with a local HVAC contractor who will contact you about your service request. Privacy.

Prefer to talk it through? Call (603) 932-6437

When It Can't Wait, Call — Don't Fill Out a Form

For urgent problems, always call (603) 932-6437 instead of submitting a form. A call describes the problem directly. A visit still depends on the schedule.

Four checks before calling for emergency service: thermostat setting and batteries, the switch at the unit, the breaker, and the air filter — plus a warning to call 911 or the gas utility first for gas odor, a carbon monoxide alarm, or a burning smell.
Run these four first. If one of them is the answer, you have just saved yourself an after-hours call-out charge — and we would rather tell you that than send someone.

What Counts as an HVAC Emergency?

  • No heat in freezing weather — risk of frozen and burst pipes on top of an unsafe home, especially overnight
  • No AC during a heat wave — dangerous for infants, seniors, and anyone with health conditions
  • Suspected gas smell near your furnace — leave the house first and call your gas utility or 911, then arrange repair
  • Carbon monoxide alarm going off — get out and call 911 first; repair comes after the home is cleared
  • Burning or electrical smells from your furnace, air handler, or condenser
  • Water pouring from your air handler, boiler, or condensate system

What Happens When You Call

  • 1. Describe the problem. A quick rundown of what the system is (or isn't) doing, and your town.
  • 2. Contractor response. An independent local HVAC contractor reviews the service request and follows up.
  • 3. Get a time window. Ask what the schedule can take. A call does not reserve a visit.

While You Wait

  • No heat: Check the thermostat batteries, the furnace power switch, and your circuit breaker. Keep interior doors open and let faucets drip if pipes may freeze.
  • No cool: Check the breaker and swap in a clean air filter. If ice has formed on the lines, switch the AC off (fan-only) so the system can thaw before the tech arrives.
  • Safety first: Never run a generator, grill, or oven for heat — carbon monoxide kills.
Technician testing an air conditioning unit's electrical circuit with a multimeter.

Get Help On the Way Now

Call to request urgent service from an independent local HVAC contractor serving Nashua, NH.

Call (603) 932-6437 Request Nashua service

Not an Emergency? Send It Here

For an urgent problem, call and describe it. A visit still depends on the schedule. Use the form when the request can wait.

Use a number you will answer. A call back still depends on the schedule.

Required. By submitting, you agree that your information may be shared with a local HVAC contractor who will contact you about your service request. See our privacy policy.

Prefer to talk it through? Call (603) 932-6437.

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emergency HVAC beyond Nashua

Nashua HVAC keeps a separate Hudson note beside this emergency HVAC page, because a Hudson request often starts with the same emergency HVAC question and a short drive across the Merrimack.

Read the Hudson notes beside this emergency HVAC page.

Call (603) 932-6437 Request online