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AC Repair in Bellingham, MA

Central AC repair for Bellingham and the MetroWest towns around it — every make and model, stocked vans, a quote before any work starts.

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

Hannon Heating & Air Conditioning repairs central air conditioning in Bellingham, MA and the MetroWest towns around it — every make and model. We diagnose the fault, quote the fix before any work starts, and carry the parts that fail most on the van, so most repairs finish in one visit. Our service area includes Milford, Franklin, and Plainville.

AC Failures We See Every Summer

Summer breakdowns cluster around the same short list of parts. The run capacitor tops it: the outdoor unit hums, but the fan won't spin or the compressor won't start. Clogged condensate drains trip the float switch and shut the whole system down. Coils freeze over when airflow drops or refrigerant runs low. Condenser fan motors pick the hottest afternoon of the year to quit. And a refrigerant leak shows up as an AC that runs all day without ever catching up. We carry capacitors, fan motors, contactors, and drain fittings on the van, so these get fixed in one trip. Most of this list is preventable, too — a spring AC tune-up catches weak capacitors and clogging drains before the heat arrives.

Two Goodman air conditioning condensers against red siding beside a vegetable garden

What a Diagnostic Visit Actually Covers

Homeowners sometimes look up the online price of a capacitor and wonder why the repair visit costs what it does. Fair question, so here is the straight answer. The visit starts with finding the real fault: a dead capacitor is often the symptom of a motor drawing too many amps, and swapping the part without checking sets up a second no-cool call in August. You also get the correct spec (capacitors are rated by voltage and microfarads, and a mismatch quietly shortens a motor's life), safe discharge of a component that holds a charge even with the power off, a check of the contactor and wiring while the panel is open, and a warranty on the part and the labor. That's how every air conditioning call from us runs: diagnose, explain it in plain English, quote, then fix.

No Cool Air? Check These First

Before you call, run these five checks. They end a surprising number of no-cool calls.

  • Thermostat: set to COOL, not FAN; setpoint below room temperature; fresh batteries.
  • Filter: a packed filter chokes airflow and can freeze the coil. If it's gray, swap it.
  • Breakers: the indoor air handler and the outdoor condenser usually sit on separate circuits. Check both in the panel.
  • The outdoor disconnect: the small box on the wall beside the condenser. Make sure it's seated.
  • Ice on the copper lines: if you see frost, shut the system off and let it thaw. Running it frozen risks the compressor.

Still warm after all that? Get in touch. During heat waves we run same-day calls whenever the schedule allows.

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 Math We Use

Our default is repair. Central AC runs about 15 years, often closer to 20 in New England where the cooling season is short. When a repair quote crosses half the cost of replacement on a system past its mid-teens, replacement wins the math. One newer factor: systems built before 2025 use R-410A refrigerant, and while repairing them stays completely legal, R-410A is on a production phase-down and recharges get pricier every year, so a big leak on an old system tips the scale faster than it used to. When replacement genuinely is the better move, we say so, walk you through the central AC installation options, and the estimate on a full replacement is free. Nobody gets talked into a new system here.

15–20 years

what central AC runs — about 15, often closer to 20 in New England

Half the cost

a repair crossing half the cost of replacement on a system past its mid-teens means replacement wins

R-410A

pre-2025 refrigerant — still legal to repair, but recharges get pricier every year on the phase-down

Frequently Asked Questions

My AC is running but the house isn't getting any cooler — what's wrong with it?
Most often it's airflow, refrigerant, or a failed part, and you can rule out the easy ones yourself. Check the filter, make sure the thermostat is on COOL rather than FAN, and look for a tripped breaker on the condenser circuit. If the outdoor unit hums without the fan spinning, that's a capacitor. Ice on the copper lines means shut it down and call.
What's the most common part to fail on a central AC system?
The capacitor, and it usually dies without warning on a hot day. The service call covers more than the swap: we confirm the capacitor failed rather than the motor it serves, match the exact voltage and microfarad spec, discharge and handle it safely, and warranty the part and the labor. A mismatched capacitor quietly shortens a motor's life.
Is it worth repairing a system that uses the older R-410A refrigerant?
Usually, yes. Repairing and recharging R-410A systems remains fully legal; only new equipment moved to the newer refrigerants. The caveat is that R-410A is on a production phase-down, so recharges get more expensive each year. For a minor part on a mid-life system, repair wins. For a major leak on a system past 15, we'll run the replacement math with you honestly.
There's ice on my AC line in the middle of summer — should I shut it off?
Yes, right away, and leave the indoor fan running to thaw the coil. Ice means the system is either starved for airflow, usually a packed filter, or low on refrigerant from a leak. Running it frozen can flood liquid refrigerant back to the compressor, which risks the most expensive part in the system.
How fast can you get here during a heat wave?
Honestly: heat waves fill every AC company's schedule, ours included. We run same-day calls whenever the schedule allows. Emergency service is available; we pick up when we can, and when we miss you, we call right back. While you wait, close blinds on the sunny side, run fans, and don't keep restarting the system — if it tripped or froze, restarting makes it worse.

Ready to Get the Cool 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