Same-day and emergency appointments
Up-front pricing before any work starts
Licensed, insured, background-checked technicians
Written safety report after every visit
Markham, York Region
Furnace Repair in Markham
No heat? We diagnose and fix gas and electric furnaces the same day.
A furnace that quits in January is not a maintenance item, it is an emergency. Our gas-licensed technicians carry the ignition, control and blower parts that account for most Ontario furnace failures, so the majority of no-heat calls are resolved on the first visit.
(647) 000-0000Furnace Repair in Markham
Send the symptom and your postal code — we'll confirm an arrival window.
Local context
Furnace Repair for Markham homes
What we find on a furnace repair call in Markham depends almost entirely on when the house was built. Heritage masonry in Unionville and along Main Street needs soft lime-based mortar. Repointing older Markham brick with a modern hard mortar traps moisture and spalls the brick face — matching mortar strength is not cosmetic, it is structural.
We start every furnace call with a full combustion and safety check, not just a fix for the symptom you reported. That means testing the heat exchanger for cracks, verifying gas pressure against the manufacturer's spec, checking flue draft and confirming the limit and pressure switches are operating inside their ranges. A furnace that heats but vents improperly is more dangerous than one that will not start at all.
Once the cause is identified, you get a written price before we touch a part. If a repair does not make financial sense against the age and condition of the unit, we tell you plainly and show you the numbers rather than quietly replacing components on an appliance near the end of its life.
The failures we see cluster by age. Under eight years old, a no-heat call is usually a flame sensor, a pressure switch tripped by a blocked intake, or a condensate drain that has backed up and shut the unit down on a safety. Past twelve years, the same symptom is more often an inducer motor, a control board, or a heat exchanger that has finally opened up. Knowing which band your furnace is in changes what we test first and how much of your time we spend on it.
We also record what the furnace was doing before it stopped. Static pressure, temperature rise across the exchanger, gas manifold pressure and flame current are numbers, and numbers tell you whether the part that failed was the problem or a symptom of something upstream. A furnace that eats igniters is not an igniter problem — it is usually restricted airflow or a cracked exchanger cooking the ignition circuit, and replacing the igniter alone means you call us again in six weeks.
What the housing stock in Markham means for this job
Cornell, Berczy Village, Cathedraltown and Box Grove are planned post-1995 communities with rear-lane garages, narrow lots and mechanical rooms designed to the minimum footprint. Unionville and Main Street Markham hold protected heritage properties where any exterior work has to respect the original materials. For furnace repair, that matters because the work concentrates on the furnace and its venting — and that is exactly what changes between a Cornell property and a newer build in Berczy Village.
Timing in Markham
No-heat calls concentrate in the first hard cold snap of the season, when equipment that idled through the shoulder months is asked for full output overnight. In Markham specifically: Markham's inland position gives it colder winter nights than the lakeshore and a longer heating season than downtown Toronto, and its newer neighbourhoods have limited mature canopy, so summer roof and attic temperatures run high.
What it costs here
The failed component sets the floor and the age of the unit sets the ceiling. Parts still in production are inexpensive; obsolete boards and inducers for discontinued models are not. Rear-lane and narrow-lot homes in Cornell and Berczy add access time for anything involving exterior equipment or roof work. In the heritage districts, material matching — mortar, brick, flashing detail — is the cost driver rather than labour hours.
Permits and jurisdiction
City of Markham issues permits, with heritage districts adding a separate approval step for visible exterior work. York Region covers water and wastewater; TSSA governs gas work throughout.
Call now, or book it in?
Call now
- No heat with outdoor temperatures below freezing
- Any carbon monoxide alarm activation
- A burning or electrical smell from the furnace
- Visible soot around the burner compartment
Can be scheduled
- Short cycling but still holding temperature
- Louder-than-usual blower
- Uneven heat between floors
- Filter clogging faster than it used to
How a Markham visit runs
- 1Book & confirmTell us the symptom and your postal code. We confirm an arrival window, not an all-day wait.
- 2DiagnoseFull electrical, gas pressure, draft and safety-control test to find the actual cause.
- 3QuoteWritten, itemised price for parts and labour before any work begins.
- 4Repair & verifyWe fix it, then re-run the unit through a full heat cycle and record the readings.
- 5Safety reportYou get a written summary of every reading and anything to watch for next season.
What affects furnace repair pricing in Markham
- Which component failed — an igniter is a fraction of the cost of an inducer motor or control board
- Whether the part is stocked on the truck or has to be ordered for an older model
- Age of the furnace and whether parts are still manufactured
- After-hours or emergency scheduling
- Whether the failure damaged secondary components such as the limit switch or blower
FAQ
Furnace Repair questions from Markham homeowners
How long does a furnace repair take?
Most repairs are completed in 60 to 120 minutes, including diagnosis and a full safety verification cycle. Repairs that need a special-order part for an older unit typically take two visits.
Is it worth repairing a furnace over 15 years old?
It depends on the failed component. A $200 igniter on a 16-year-old furnace that is otherwise sound is worth doing. A cracked heat exchanger or a failed control board on the same unit usually is not. We give you the repair cost, the replacement cost and the expected remaining life so you can decide with real numbers.
Why does my furnace turn on and off every few minutes?
Short cycling is most often a dirty filter restricting airflow, a flame sensor coated in oxide, a blocked flue, or an oversized furnace for the space. The first two are inexpensive fixes. We test all four before recommending anything.
Do you handle emergency no-heat calls?
Yes. No-heat calls are prioritised ahead of routine maintenance, and we run extended hours through the Ontario heating season.
Is my furnace still under warranty?
Most manufacturers cover heat exchangers for 10 to 20 years and other parts for 5 to 10 years, and the coverage usually survives a change of homeowner. We look the model and serial up before quoting so you are not paying for a part the manufacturer owes you.
Does the age of my home change what usually fails on a furnace here?
Cornell, Berczy Village, Cathedraltown and Box Grove are planned post-1995 communities with rear-lane garages, narrow lots and mechanical rooms designed to the minimum footprint. Unionville and Main Street Markham hold protected heritage properties where any exterior work has to respect the original materials. On a furnace repair visit in Cornell, Berczy Village, Cathedraltown or anywhere else in Markham, we work from what the house actually is rather than a standard checklist — the furnace and its venting gets assessed on the property, and you get the readings in writing.
When is the worst time to be without heat here, and how fast can you get out?
No-heat calls concentrate in the first hard cold snap of the season, when equipment that idled through the shoulder months is asked for full output overnight. Markham's inland position gives it colder winter nights than the lakeshore and a longer heating season than downtown Toronto, and its newer neighbourhoods have limited mature canopy, so summer roof and attic temperatures run high. We cover Markham from Cornell through Cathedraltown, and also serve 3 neighbouring municipalities, so scheduling outside a demand spike usually means a same-week window.
Pricing
How much does this cost in Markham?
Typical range is $180 – $1,200 per repair. Get a number for your own home in about a minute with our instant estimator.
Furnace Repair in Markham, booked today
Call for the fastest response, or send a request and we'll confirm your arrival window.