
Heating and cooling in Caledonia
Furnaces, air conditioners and heat pumps in Caledonia
Grimsby Heating and Cooling repairs, replaces and maintains heating and cooling equipment in Caledonia. The technician traces each fault to a specific part, takes the readings that confirm it and writes down the price before any work starts.
How the houses in Caledonia shape the work
Grimsby Heating and Cooling covers Caledonia from Grimsby for furnace repair, replacement, maintenance and cooling. A replacement furnace is sized from the heat loss of the house and its duct sizes, not from the old unit's label, and the venting route is checked before any price is written. Repairs are traced to the failed part first.
Furnace service and replacement in Caledonia
Grimsby Heating and Cooling covers Caledonia from Grimsby for furnace repair, replacement, maintenance and cooling. Gas work in Ontario falls under Ontario Regulation 212/01, and new gas appliances are installed to the CSA B149.1 code, which sets the rules for venting, clearances and gas piping.
Work is performed by TSSA-certified gas technicians.
Sizing a replacement furnace
The old furnace's label tells you what someone once installed, not what the house needs now. Before quoting a replacement, the technician:
- calculates the heat loss of the house from its walls, windows, attic insulation and air leakage
- measures supply and return duct sizes, since a furnace pushing air through undersized returns runs loud and wears out early
- checks the venting route, and whether a chimney left serving only a water heater needs a liner
- confirms the condensate has somewhere to drain if a high-efficiency furnace is going in
Repair or replace
An older furnace with a small fault is often worth repairing. A cracked heat exchanger is a different matter, because it can let combustion gases into the air the blower circulates, and that furnace should be shut off rather than left running. The guide should a 25-year-old furnace be repaired or replaced sets out the reasoning.
Getting a price in Caledonia
Use the quote form for a replacement, or the contact page to report a fault. More detail is on the furnace installation and replacement page.
Communities we serve
- York
- Cayuga
- Canfield
Heating and cooling services in Caledonia

Furnace repair in Grimsby
Furnace repair in Caledonia
Furnace repair in Caledonia, with each fault measured and traced to the part before a written price is given.
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Grimsby furnace installation
Furnace installation and replacement in Caledonia
Grimsby Heating and Cooling sizes and installs high-efficiency furnaces for homes in Caledonia, with the ducts, venting and chimney checked before any price is written.
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Central air repair in Grimsby
Air conditioner repair in Caledonia
Central air repair in Caledonia, with every fault traced to a measured cause and priced in writing before work begins.
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Central air and ductless in Grimsby
Air conditioning installation in Caledonia
Grimsby Heating and Cooling installs central air and ductless systems in Caledonia, sized from a measured load and duct assessment of each house.
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Cold-climate and hybrid systems
Heat pumps in Caledonia
Grimsby Heating and Cooling installs and repairs cold-climate, ductless and hybrid heat pumps in Caledonia, sized from the house and its ducts.
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Seasonal tune-ups in Grimsby
Furnace and AC maintenance in Caledonia
Grimsby Heating and Cooling tunes up furnaces, air conditioners and heat pumps in Caledonia, with vent, drain and chimney checks matched to the age of the house.
Learn moreQuestions from homeowners in Caledonia
What should I check before calling about a Caledonia furnace that will not start?
Confirm the thermostat is set to heat and above room temperature, the furnace power switch is on and the filter is not clogged. On a high-efficiency furnace, look at the plastic intake and exhaust pipes outside and clear any snow or ice. If it still will not light, note any flashing light code on the control board and pass it on through the contact page. The guide on a furnace running but not heating explains the common causes.
Do I need to check anything before adding a side-wall vent to an older house?
Yes. Besides its designated heritage properties, the Town of Grimsby keeps a public register of properties with cultural heritage value or interest that are not designated. A condensing furnace vents through plastic pipes in an exterior wall, and CSA B149.1 sets how far those terminations must sit from windows, doors and air intakes, so the vent location is often fixed by the code rather than by looks. Owners of older homes on Main Street or in Grimsby Beach should check the register before planning exterior work, then read about furnace installation and replacement.
What makes one furnace repair cost more than another?
The part, the labour to reach it and whether the fault has damaged anything else. Cleaning a flame sensor or replacing a hot-surface igniter sits at the low end. An inducer motor or control board costs more. A heat exchanger is the most expensive repair on a furnace and often tips the decision toward replacement. Before writing a price, the technician reads the fault code, checks gas pressure, temperature rise and flame-sensor signal, and tests the pressure switch. You approve that written number before work begins. See furnace repair.
Nearby communities
Besides Caledonia, our technicians also work in Beamsville, Smithville and Stoney Creek.
- Heating and cooling in Beamsville
- Heating and cooling in Smithville
- Heating and cooling in Stoney Creek
- Heating and cooling in Binbrook
- Heating and cooling in Hamilton
- Heating and cooling in Burlington
- Heating and cooling in Waterdown
- Heating and cooling in Dundas
- Heating and cooling in Oakville
- Heating and cooling in Ancaster
- Heating and cooling in Flamborough
- Heating and cooling in Milton
Tell us what your system in Caledonia is doing
Tell us what your furnace, air conditioner or heat pump is doing. The technician measures, explains the cause and writes down the price before any work begins.