Skip to main content

Furnace Repair in Bellingham, MA

Gas and oil furnace repair for Bellingham and the MetroWest towns around it — every major brand, stocked vans, and a quote before any work starts.

Call (508) 282-1000 4.3 · 45 Google reviews

Hannon Heating & Air Conditioning handles furnace repair in Bellingham, MA and the MetroWest towns around it — gas and oil, every major brand. Our vans are stocked with the parts furnaces actually break, so most repairs finish in one visit. You get a diagnosis in plain English and a quote before any work starts. Our service area includes Blackstone, Plainville, and Millis.

We Repair Gas and Oil Furnaces

Few local companies still work on both fuels. We do, every week. Paul has spent more than 30 years on heating systems, a lot of it on oil heat, and oil calls remain a steady share of our winter since he founded the company in 2014. A 30-year-old oil furnace and a brand-new high-efficiency gas unit get the same treatment: a proper diagnosis, the right part from the van, and a combustion check before we leave. If your last company told you they don't do oil anymore, call us at (508) 282-1000.

High-efficiency Goodman gas furnace installed by Hannon in a MetroWest basement

Furnace Problems We See Every Winter

Most no-heat calls trace back to a short list. A dirty flame sensor lets the burners light, then shuts them down seconds later. A clogged filter overheats the furnace and trips the high-limit switch, so it runs in short bursts and never warms the house. Hot surface igniters crack. Blower motors and their capacitors wear out. And on high-efficiency furnaces, a clogged condensate line locks the whole unit out until it drains. We carry parts for all of these on the van. An annual heating tune-up catches most of them before they turn into a cold house.

No Heat Right Now? Check These First

Run this list before you call. It fixes more no-heat calls than you'd expect.

  • Thermostat: fresh batteries, set to HEAT, setpoint above room temperature.
  • Breaker: check the furnace circuit in the panel.
  • The emergency switch at the top of the basement stairs. It looks like a light switch, and it gets flipped by mistake more than you'd think.
  • Filter: if it's gray and packed with dust, swap it.
  • Oil heat: check the tank gauge. An empty tank is the most common "breakdown" we see.

One rule for oil burners: press the red reset button ONCE, and only once. Every extra press pumps more unburned oil into the chamber, and that oil can ignite all at once — a puff-back that coats the house in soot. If the burner trips again after one reset, stop and get in touch.

No heat or no cooling? Emergency service is available.

Call (508) 282-1000 — we pick up when we can, and if we miss you we call right back.

Repair or Replace: The Honest Math

Our default is repair. If a fix buys you more good years at a sensible cost, that's what we recommend, and we quote it before any work begins. The numbers we use to call it: a furnace lasts 15 to 20 years; when a repair would run more than half the cost of replacement, replacement wins; and three repairs in three years means the furnace is telling you something. When replacement genuinely is the better move, we say so and walk you through the furnace installation options — estimates on full system replacements are free. Nobody gets pressured into a new system here.

15–20 years

what a furnace lasts

Half the cost

a repair over half the price of replacement means replacement wins

3 in 3 years

three repairs in three years means the furnace is telling you something

Frequently Asked Questions

Why is my furnace running but blowing cold air?
Check the thermostat fan switch first: ON runs the blower between heat cycles and that air feels cold, so set it to AUTO. If that's not it, the usual suspects are a clogged filter tripping the high-limit switch, a dirty flame sensor shutting the burners down, or a blocked condensate line locking out a high-efficiency furnace. Filter and thermostat are fair DIY. The rest is a service call.
Why does my furnace keep starting and stopping every few minutes?
That's short cycling. The common causes are a dirty filter making the furnace overheat and cut out on its limit switch, a failing flame sensor, or a furnace that was oversized for the house from day one. Short cycling wears out igniters and motors fast, so have it looked at before those parts fail too.
My oil furnace shut off — can I just press the red reset button?
Press it once, and only once. Each press sprays more unburned oil into the combustion chamber, and that oil can ignite in one shot — a puff-back that fills the house with soot. Check the tank gauge first, since an empty tank is the most common cause. If it trips again after one reset, call us.
I smell burning or oil when the heat runs — is that dangerous?
Depends on the smell. A dusty burning smell in the first hours of the season is normal: summer dust cooking off the heat exchanger. An electrical or plastic smell means shut the system off and call. A gas odor means leave the house and call the gas company from outside. A raw oil smell means the burner needs service now. Make sure your CO detectors work either way.
My furnace is 15–20 years old — keep fixing it or replace it?
At that age it's a judgment call. Our rule of thumb: if a repair costs more than half of what replacement would, or it's the third repair in three years, replace it — a new furnace also burns noticeably less fuel. A single inexpensive part on an otherwise sound furnace is still worth doing at 18 years.
The heat died on a freezing night — what counts as an emergency?
No heat in freezing temperatures is an emergency. Run the quick checks first: thermostat, breaker, the switch at the top of the basement stairs, filter, oil level. Still dead? Call (508) 282-1000 — emergency service is available; we pick up when we can, and when we miss you, we call right back. While you wait, open cabinets on exterior-wall plumbing and let faucets drip so pipes don't freeze.

Ready to Get the Heat Back?

Call with what the system is doing — you'll talk to the person who does the work, and most repairs finish in one visit.

(508) 282-1000 Request an Estimate

Mon-Fri 7am-5pm · Emergency Service Available