My furnace is not turning on at all. What should I check before calling?

Make sure the thermostat is on Heat, set higher than the current room temperature, and has fresh batteries. Confirm the furnace switch near the unit is on and check your electrical panel for a tripped breaker. If you reset a breaker and it trips again, turn it off and call a professional. Do not open burner compartments or attempt gas work yourself.

Do you offer 24/7 emergency furnace repair in Hamilton?

Yes. Greg’s Plumbing & Heating provides 24/7 answering for emergency no-heat calls. In freezing weather we prioritise homes with no heat across Hamilton and surrounding communities, and we will give you an arrival window when you call 905-928-6831.

How soon can you usually get to my home for a no-heat call?

Most no-heat furnace repairs in Hamilton are scheduled the same day or within 24 hours, depending on weather and call volume. When you book, we provide an arrival window and text when your technician is on the way.

How much does furnace repair usually cost in Hamilton?

Costs depend on which part failed and how complex the repair is. Common issues like ignitors, flame sensors, or simple control problems are usually on the lower end, while blower motors, control boards, and venting issues can cost more. Greg’s Plumbing & Heating always provides a written scope of work and clear price range before any repair begins.

Will a furnace repair fix my high gas bills?

If your furnace is short cycling, not reaching set temperature, or running with dirty burners, a repair can improve efficiency. However, very old furnaces are simply less efficient by design. During a visit the technician can explain what improvement to expect from a repair and when a high-efficiency replacement might reduce your gas usage.

Furnace Repair in Hamilton

No heat, strange smells, or a furnace that keeps shutting off? Our licensed gas fitters diagnose and repair most furnace brands the same day across Hamilton and surrounding areas. We prioritise emergency no-heat calls so your home warms up again quickly and safely.

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Emergency No Heat in Hamilton: First 10 Minutes

Start with these safe checks. They can restore heat quickly and give our furnace repair techs better information when you call.

Step 1

Try Safe DIY Checks (No Tools Needed)

Make sure your thermostat is set to Heat, not Cool, and the temperature is a few degrees higher than room temperature. If it runs on batteries, replace them. Check that the furnace switch (the light-switch near the unit) is on and that the breaker is not tripped. If you reset a breaker and it trips again, stop and call us.

Step 2

Check the Filter and Vents

A clogged filter can overheat your furnace and shut it down. If you can, slide the filter out and see if it is packed with dust. Replace it if it is very dirty. Walk around and make sure supply vents and return grilles are not blocked by furniture, boxes, or rugs.

Step 3

Look and Listen for Warning Signs

Stand near the furnace and listen. Do you hear it trying to start, clicking, or shutting off after a few seconds? Look through the small inspection window for a flashing light or code. If you smell gas, hear a loud boom, or see scorch marks, leave the home immediately and call your gas utility first, then us.

Step 4

Book Same-Day Furnace Repair

If the furnace still will not run or the air coming out is cold, it is time to call in a licensed tech. We prioritise emergency no-heat calls in Hamilton. Call 905-928-6831 and, if you can, mention any codes you saw or sounds you heard. That helps us arrive with the right parts.

Furnace Repair, DONE RIGHT

What We Fix Today

From older mid-efficiency units to newer high-efficiency furnaces, we handle the most common no-heat problems in Hamilton homes every day. Here is what our furnace repair team can usually fix on the first visit.

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Ignitors and Flame Sensors

If your furnace clicks but will not light or starts and shuts off after a few seconds, the ignitor or flame sensor may be dirty or failed. We test, clean, or replace these parts so your burners light reliably and safely.

Pressure Switches and Draft Problems

Modern gas furnaces have safety controls that prove the vent fan is moving air properly. A stuck pressure switch, weak inducer motor, or blocked vent can leave you with no heat. We check venting, hoses, and switches, then complete safe repairs that match manufacturer guidelines.

Blower Motors and Fans

No air moving, hot spots, or a burning smell often point to a failing blower motor, capacitor, or fan wheel. We test motor amperage, replace worn parts, and set the blower speed correctly so warm air moves quietly through your home.

Control Boards and Thermostat Wiring

Random shut-offs, flashing error codes, or a furnace that only runs when you jiggle the thermostat can mean control board or low-voltage wiring issues. Our techs trace the circuit, repair loose connections, and replace boards when needed, with clear written pricing before work.

Limit Switches, Overheating, and Short Cycling

If your furnace turns on and off every few minutes, it may be overheating due to restricted airflow or a failing limit switch. We inspect ductwork, filter size, registers, and safety controls to stop short cycling and protect the heat exchanger.

igh-Efficiency Venting and Condensate Issues

High-efficiency furnaces create condensate that must drain correctly. Frozen pipes, blocked intake or exhaust vents, or a failed condensate pump can shut your furnace down. We thaw and clear lines, correct slopes, and replace pumps so your system runs reliably in Hamilton winters.

Our Furnace Repair Process in Hamilton

We keep furnace repair simple, safe, and predictable for Hamilton homeowners.

Step 1

No-Heat Priority Booking

Call 905-928-6831 or Book Online. Tell us you have no heat and we will prioritise your visit, usually the same day in Hamilton and nearby communities.

Step 2

Clear Arrival WindoW

We provide an arrival window, text when we are on the way, and walk you through what we will check. Our licensed tech tests the furnace, thermostat, and safety controls to find the real cause of the problem.

Step 3

Options and Written Pricing Before Work

Once we know what failed, we explain your options in plain language. You get a written explanation of the repair and a clear price range before we pick up a tool.

Step 4

On-the-Spot Repairs and Safety Testing

We carry common ignitors, flame sensors, motors, switches, and controls on the truck. In most Hamilton furnace repairs we can fix the problem in one visit.

Step 5

Clean-Up and Follow-Up

We tidy the work area, reinstall panels correctly, and show you what we did. You will get tips on filter changes and maintenance so the same issue is less likely to come back.

Why Hamilton Homeowners Choose Greg’s

Same day no heat service across Hamilton and the surrounding area
Licensed gas fitters and insured HVAC techs for safe furnace repairs in Ontario
Thorough furnace diagnostics with clear repair and replace options before we start work
Hundreds of local five star reviews from Hamilton homeowners who trust Greg’s in the cold

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Company Van - Greg's Plumbing & Heating - Commercial Plumbing, Residential Plumbing, Plumbing Repairs

Hamilton Furnace Repair Service Area

Same-day furnace repair and emergency no-heat service across Hamilton most days.
Neighbourhoods we serve: Durand, Corktown, Kirkendall,
Stoney Creek, Binbrook, Ancaster, Dundas, Grimsby, Caledonia, Burlington.

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Furnace Brands and Systems We Service

Our Hamilton furnace repair team works on most major gas and electric furnace brands, including:

FAQ — Furnace Repair in Hamilton

Make sure your thermostat is set to Heat, set a few degrees above room temperature, and has fresh batteries. Check that the furnace switch near the unit is on and that the breaker has not tripped. You can also look at the filter and replace it if it is very dirty. If a breaker trips again after you reset it, or the furnace still will not start, turn it off and call a licensed tech.

Yes. Greg’s Plumbing & Heating provides 24 hour answering for emergency no heat calls. In cold weather we prioritise homes with no heat in Hamilton, Stoney Creek, Ancaster, Dundas, Binbrook, Caledonia, Grimsby, and nearby communities. Call 905-928-6831 any time and we will explain the next steps.

Most no heat furnace calls in Hamilton are scheduled the same day or within 24 hours, depending on the weather and how busy the schedule is. When you book, we give you an arrival window and send a text when your technician is on the way so you are not waiting all day.

The price depends on what failed and how much time the repair will take. Common issues such as ignitors, flame sensors, simple wiring problems, or minor control issues are usually on the lower end. Blower motors, control boards, and complex venting or condensate problems cost more. You always receive a written scope and clear price range before we start any repair so there are no hourly surprises.

If your furnace is more than 15 to 20 years old, needs frequent repairs, or has a cracked heat exchanger, replacement is often safer and more cost effective than another repair. During a visit we check the age and condition of the system, explain the repair option, and compare it to a new high efficiency furnace installation so you can choose what makes sense for your home and budget.

We repair most major gas and electric furnace brands, including Carrier, Lennox, Trane, Goodman, Keeprite, Napoleon, York, Bryant, Rheem, and others. If your unit is an uncommon model or parts are no longer supported, we will tell you early in the visit and go over the best options.

If your furnace is short cycling, not reaching the set temperature, or running with dirty burners or a clogged filter, a proper repair can improve comfort and reduce wasted energy. However, very old furnaces are less efficient by design. We will tell you honestly what improvement you can expect from a repair and when a modern high efficiency furnace would have a bigger impact on gas usage.

Greg’s Plumbing & Heating is based at 69 Bigwin Rd Unit 1, Hamilton ON and provides furnace repair in Hamilton, Burlington, Ancaster, Dundas, Stoney Creek, Grimsby, Niagara Falls, Binbrook, and Caledonia. If you are just outside these areas, call with your postal code and we will confirm availability.

Furnace Repair in Hamilton