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24/7 Emergency Service

24/7 Emergency Service in Southern NH

No heat in January. No hot water. A flooded basement at midnight. We answer day or night, weekends and holidays included.

Direct to the Technician

Text On-Call Directly

A note on capacity: We prioritize existing customers and take new on-call requests as capacity allows. On extreme weather days we may be full. If we can't reach you quickly, we'll let you know.

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Goes directly to the technician on call. Prefer not to text? Just call 603-623-0412.

Emergency Services

What We Handle 24/7

No Heat

Furnace or boiler failure in the middle of winter. We diagnose and repair all makes and models, or arrange emergency equipment if needed.

No Hot Water

Water heater failure, traditional tank or tankless. We repair or replace same-day on most calls throughout Southern NH.

Burst or Leaking Pipe

Emergency plumbing calls, leaks, burst pipes, backed-up drains, and other plumbing failures that cannot wait until morning.

Electrical Emergency

Tripped breakers, flickering power, sparking outlets, or electrical failures connected to HVAC or plumbing equipment.

Gas Smell or Carbon Monoxide

Leave the building immediately and call 911 first. Once you are safe, call us. We respond to gas-related HVAC emergencies as a priority.

Generator Failure

Standby generator not starting during a power outage. We service all Generac and Kohler generators and respond to outage-related emergencies.

Before You Call

What To Do First in an Emergency

These steps take two minutes and can prevent additional damage while we are on the way.

  1. No heat: Check your thermostat batteries and settings. Check your circuit breaker panel for a tripped breaker. Check that your furnace filter is not completely clogged. If nothing is obvious, call us.
  2. No hot water: Check the circuit breaker for electric water heaters. Check the pilot light on gas units. Check for water on the floor around the tank. Call us with what you found.
  3. Leak or flooding: Locate your main water shutoff, usually in the basement near where the water line enters, and turn it off. This stops the flow before we arrive.
  4. Gas smell: Do not flip any switches. Leave the building, leave the door open, and call 911. Then call us once you are outside and safe.
  5. All emergencies: Text the on-call tech for the fastest response, or call 603-623-0412.
Reach the on-call tech

Text goes straight to the technician on call right now, skipping the answering service. No hold times.

Text the On-Call Tech
Or call 603-623-0412

What to have ready

  • Your address and best callback number
  • The brand and approximate age of your equipment if you know it
  • What you have already checked or tried
  • Whether there is water, gas, or visible damage

Customer priority

We prioritize emergency calls from existing customers. New customers are welcome and we take new on-call requests when we have capacity. On extreme weather days we may be at full capacity. If we can't reach you quickly, we'll tell you so you can call another contractor.

Why A.J. LeBlanc Heating

Who We Are When It Matters Most

Direct to the Tech

Text the on-call tech directly through the form on this page and skip the answering service entirely. We also answer every call live around the clock.

Four Trades in One Call

Heating, cooling, plumbing, and electrical emergencies all handled under one roof. You call one number and we send whoever the job needs.

Licensed NH Technicians

Every tech who shows up is a licensed, background-checked employee, not a subcontractor. You know who is coming into your home.

Stocked Trucks

Our service vehicles carry common parts for furnaces, boilers, water heaters, and more. Many emergency repairs are completed on the first visit.

Common Questions

Emergency Service FAQ

Do you offer 24/7 emergency HVAC, plumbing, and electrical service in Southern NH?

Yes. We answer every call live, day or night, including weekends and holidays. You can text the technician on call directly through the form on this page, or call 603-623-0412.

What should I do if I smell gas or my carbon monoxide alarm goes off?

Leave the building immediately, leave a door open, and do not flip any switches. Call 911 first. Once you are safely outside, call us at 603-623-0412. We respond to gas-related emergencies as a priority.

How fast can you respond to an emergency?

Texting the on-call technician is the fastest way to reach us, skipping the answering service and any hold times. We prioritize emergency calls from existing customers and take new on-call requests when we have capacity.

What should I do first if I have no heat?

Check your thermostat batteries and settings, check your breaker panel for a tripped breaker, and make sure your furnace filter is not completely clogged. If nothing is obvious, text or call us.

What information should I have ready when I contact you?

Your address and best callback number, the brand and approximate age of your equipment if you know it, what you have already checked, and whether there is any water, gas, or visible damage.

Emergency? Don't Wait.

Reach Us Now

Text the on-call tech directly for the fastest response, skipping the answering service. No hold times.

Text the On-Call Tech Or Call: 603-623-0412
Available 24 hours a day · 7 days a week · 365 days a year
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Get in Touch

Fill out the form and we'll get back to you. Usually the same business day. For emergencies, call us directly.

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Contact Information

Hours

Mon-Fri: 8am-4:30pm
Evenings & Weekends: Emergency Service

24/7 Emergency Service

No heat? No hot water? Call 603-623-0412 any time.