Emergency HVAC Service

When your heat goes out at midnight or your AC fails during a heat wave, you need someone who actually answers — and we do.

Heating and cooling emergencies do not follow a schedule. A furnace that stops working at 2 AM in January, a boiler that fails over a holiday weekend, an AC system that quits during the hottest stretch of a Massachusetts summer — these are real situations that cannot wait until the next available appointment. At Shelly Heating and Cooling, we are available 24 hours a day, 7 days a week, 365 days a year for exactly these situations. When you call, you reach a real person who is ready to help — not a voicemail that gets checked in the morning or an answering service that takes a message and passes it along.

We respond to emergency heating and cooling calls across Winchendon, Gardner, Athol, Fitchburg, Leominster, Templeton, Ashburnham, and throughout Worcester County, Franklin County, and southern New Hampshire. Emergency calls cover the full range of HVAC equipment — furnaces, boilers, heat pumps, central AC systems, and ductless mini-splits. We arrive prepared to diagnose the problem on the spot and, in most cases, handle the repair the same visit. The goal on every emergency call is the same — restore your comfort as quickly and safely as possible and give you a clear picture of what caused the failure so it does not happen again.

Being available around the clock is not just a marketing line for us — it is how this business was built. Families in central Massachusetts and southern New Hampshire deal with serious weather, and a home without heat in the winter is a genuine safety concern. Call Shelly Heating and Cooling at (978) 868-3403 the moment your HVAC system stops working. We will be there.

What We Offer:

24/7 Emergency Furnace Repair — When your furnace stops heating overnight or on a weekend, we respond immediately. We diagnose the problem fast and restore heat to your home as quickly as possible — any day, any hour.
Emergency Boiler Repair — Boiler failures leave entire zones of your home cold and can create pressure and safety concerns. We handle emergency boiler calls across central Massachusetts and respond to all fuel types — gas, oil, and propane.
Emergency AC Repair — A failed air conditioner during a summer heat wave is a health concern for children and elderly family members. We respond to emergency AC calls 24 hours a day throughout Worcester County and the surrounding area.
Emergency Heat Pump Service — Heat pumps serve as both heating and cooling systems, and a failure in either mode can be urgent depending on the season. We diagnose and repair heat pump emergencies across all makes and models.
Emergency Ductless Mini-Split Repair — Mini-split failures are handled with the same urgency as any other HVAC emergency. We respond to ductless system calls around the clock across the full service area.
No-Heat & No-Cool Diagnosis — When your system is running but not producing heat or cool air, we identify the cause quickly and give you a direct answer on what it will take to fix it — before any work begins.
Holiday & Weekend Emergency Coverage — We do not take days off from emergency availability. Holidays, weekends, and overnight calls are handled with the same response and the same quality as any other appointment.

Why Choose Shelly Heating and Cooling for Emergency HVAC Service

Real 24/7 Availability — No Exceptions — When we say 24/7, we mean every hour of every day including holidays and weekends. There is no after-hours surcharge that makes you hesitate to call, and there is no voicemail system standing between you and a technician. You call (978) 868-3403 and someone at Shelly Heating and Cooling answers.
Fast Response Across the Full Service Area — We cover Winchendon and a wide area across Worcester County, Franklin County, Middlesex County, and southern New Hampshire. Distance does not change our response commitment. When you have a heating or cooling emergency, we get there as fast as we can — regardless of the hour.
Prepared to Repair on the First Visit — We arrive at emergency calls equipped to handle the most common HVAC failures. That means we are not diagnosing the problem on one visit and coming back with parts on another. Most emergency repairs are completed the same day we arrive.
Straightforward Pricing Even After Hours — An emergency call should not come with a mystery bill. We give you a clear answer on what the repair will cost before we start the work. You will know exactly what you are paying for — even at 3 AM on a Sunday.
Family-Owned and Personally Invested — Shawn and Julia Shelly built this business around being available when people need them most. This is not a large company routing calls to whoever is on duty. When you call for an emergency, you are reaching people who take that responsibility seriously and understand what is at stake when a home loses heat in a Massachusetts winter.