Hot surface ignitor
Most common
The blower runs and only cold air arrives. The element that lights the gas has gone brittle and stopped glowing. We test it and fit a matched part off the van.
Furnace Repair Calgary
Trusted 24/7 furnace repair in Calgary
Furnace repair in Calgary from a small, local, owner-run crew that answers its own phone. The fault is named and the price agreed in writing before anything gets fitted.
5 star rated on GoogleCalgary and surrounding areas
- 5.0
- Rated on Google
- 24/7
- An owner answers
- 2020
- Family-run since
- $5M
- Liability insurance
BBB A+ Accredited
WCB Alberta current
Common furnace faults
The six faults behind most furnace repair calls in Calgary
Nearly every no-heat call in Calgary comes down to one of these six.
Flame sensor
Lights then drops
It lights, burns a few seconds, drops out and starts again. Oxide on the sensing rod has cut the current. We clean it, then read the microamp signal on a meter.
Pressure switch
Lockout
The inducer spins up, holds, and the burners never light. A drift over the intake, a plugged trap or a split hose stops it proving airflow. A manometer says which.
Blower motor
Airflow
A hum with no air moving, or air that is barely warm. Usually a weak run capacitor or worn bearings. We measure it against its rating, and static pressure with it.
Restricted airflow
Short cycling
It heats, gets hot, then shuts down and repeats. A blocked filter or closed returns starve the heat exchanger and the limit trips. We read static pressure across it.
Cracked heat exchanger
Safety, not comfort
Flames that roll on startup, soot, or a monoxide alarm. The steel between the flue gases and your air has split. We shut it down and isolate the gas, not patch it.
24/7 emergency
Emergency furnace repair Calgary, 24/7
A house with no heat drops temperature fast, so a call for furnace repair in Calgary at 2am is handled exactly the way it would be at 2pm.
Any hour, any day
There is no after-hours voicemail and no message saying the office reopens Monday. The line is open at 3am on a Sunday and it gets answered.
An owner answers or calls back
Not a receptionist in another province working from a script, and not an answering service taking a message. An owner of TNT answers the phone.
We talk it through
Before anybody gets in a van we tell you what to check, what to shut off, and how to hold the temperature in the house while you wait.
Straight on timing
If we cannot reach you quickly you hear it on the phone, not after two hours of wondering whether a van was ever coming. You can plan.
Furnace service
How a furnace service call in Calgary runs
Most no-heat calls in Calgary are done in one visit, often within a couple of hours. The three steps run whether it is a booked furnace service in Calgary or 24 hour furnace repair at two in the morning.
We triage on the phone
Give us the symptom and the flash code and we will tell you what it usually points to before anybody gets in a van. A flat thermostat battery costs you nothing.
Diagnosed, then priced
A meter on the board terminals through the sequence of operation, a manometer on the gas. The fault is named and agreed in writing before a part comes off the van.
Repaired and tested
Gas pressure back to the manufacturer spec, temperature rise inside range, a combustion test and a monoxide reading. Two year warranty on the labour.
The quote is written on the visit, not posted to you three days later. If your system is down right now, skip the form and call. 24/7 emergency service, an owner answers or calls back.
Repair or replace
Repair the furnace, or replace it?
Nearly every furnace repair Calgary homeowners book ends with the unit fixed, and we would rather do that than sell one. When the honest answer is a new unit, we say so.
Repair it
The furnace has years left and one component has given up.
- The failed part is an ignitor, a flame sensor, a capacitor or a pressure switch
- The furnace is under about fifteen years old and has been serviced along the way
- The heat exchanger is sound and the burners are lighting on a crisp blue flame
- It is the first real fault the unit has given you, not the third in two years
- The repair costs a fraction of a replacement and buys you years, not weeks
Replace it
The money goes into a unit that will ask for it again soon.
- The heat exchanger is cracked, and there is no version of that which is a repair
- It is past twenty years and the failed part is a blower motor, an inducer or a board
- This is the third call in two years and each one has cost more than the last
- It is a mid-efficiency unit venting up the chimney and the gas bill shows it
- Parts are obsolete and everything has to be chased through a salvage supplier
If a repair gets you another few good years we will do that and say so. When it does not, you get both numbers side by side, in writing. You decide.
Why TNT
Why Calgary homeowners choose TNT
Anybody can send a van. What separates one furnace repair Calgary quote from the next is who is holding the meter, and whether the fault gets measured or guessed.
Family-run
Since 2020
Started by family and close friends and still run by them. No head office, no franchise agreement, and no regional manager between you and the work.
In-house crew
No subcontractors, on any job
The technician in your mechanical room is a TNT employee, not a crew hired for the week. The standard is the same on the fifth job of the day as on the first.
Answered, not queued
24/7, answers or calls back
No heat at 2am in a Calgary February is an emergency, not a ticket. Ring at any hour and an owner answers or calls back, tells you what to check, and when someone can be there.
Priced in writing
Before a tool leaves the van
An itemised quote covering equipment, labour and what is included. 15% off new installs, plus financing with promotions that change through the year.
Commissioned properly
Combustion tested every install
Gas pressure set, venting verified, static pressure read across the ductwork, and a combustion analysis run before we leave. Two year warranty on the labour.
Client reviewsWhat Calgary homeowners say about
What Calgary homeowners say about
TNT Heating & Air Conditioning
5.0Rated on Google
Five stars from every customer who has left a review, including the ones who called for furnace repair in Calgary in the middle of the night.
It was -30 kind of winter day… other companies asked for us to wait over 24 hours… Jamie came to service our non heating furnace within an hour and fixed the problem quickly.
Adelia Timirboulatova
Furnace Repair
Amazing service. I would not go with anyone else. Jamie tells you the truth, stands by his work and follows up.
Robert Milne
Furnace Repair
Would highly recommend. Check with TNT before making any decision regarding heating or AC install. Believe me. They were amazing.
michael stapleton
Furnace Repair
TNT installed the furnace system on our new build, and then we proceeded to get our AC with TNT as well. Jamie was super responsive, kind, and informative… In addition to being fairly priced.
Christina Golubic
Jamie and his team provide incredible expertise. They gave me consultative choices to improve my existing system, and clean installation done right… all at a fair price.
Trevor
Not only was TNT very reasonably priced, they fit me into their busy schedule during the heat spell and got me all set up in no time.
John Klassen
Great job and great price.
Murray Jonasson
Jaime was professional and kept me informed throughout the entire process… His technician arrived on time, was knowledgeable, and took the time to answer all of my questions.
Glenn Jefferies
What it costs
What drives furnace repair cost in Calgary
There is no price list on this page and there is not an honest one anywhere else. A repair is priced after the fault has been found, not before. These six things move the number.
Which part has failed
An ignitor, a flame sensor or a run capacitor sits at the light end of the trade. A blower motor, a gas valve or a control board sits at the considerably heavier end.
Whether it is on the van
The faults we see most travel with us, so those calls are one visit and one labour charge. A part that has to be ordered adds a second visit and a supplier timeline.
The age of the unit
Past about twenty years components go obsolete. A board for a discontinued model gets chased through a salvage supplier, or matched to a universal one and rewired.
Access, and the first install
A furnace in an open basement is quick to work on. One boxed into a closet behind a finished wall costs time, and poor original workmanship is billed as the time to undo.
Whether a second fault hides
Ignitors that keep cracking are a symptom of something making them work too hard. We read gas pressure, temperature rise and static pressure on every call for that reason.
The hour the call comes in
A repair booked into regular hours and one at 3am on a Sunday are not the same call. After hours, weekends and statutory holidays carry an additional call-out charge.
The number arrives after the diagnosis, in writing, and nothing is replaced until you say yes. If the honest answer is a new furnace, that quote is free and 15% off new installs applies.
Areas we serve
Furnace repair Calgary wide, and the towns around it
Furnace repair in Calgary is most of what we do, and the same crew runs out to the towns around the city.
Calgary
All four quadrants, and no part of the city is treated as out of the way.
And the towns around it
- Chestermere
- Okotoks
- Airdrie
- Langdon
- Cochrane
- Priddis
- Millarville
- Bragg Creek
Further out? Tell us where you are and we will say straight away.
Furnace repair Calgary FAQs
Calgary furnace repair questions, answered
Ten questions we get asked on the phone about the repair, the timing and the cost, answered the way we would answer at eleven at night.
- It depends on which part has failed, and you get the price in writing before anything is replaced. A flame sensor and a hot surface ignitor sit at the cheap end of the trade because the parts are small and they travel on the van. A blower motor, an inducer assembly, or a control board sits at the other end, and an obsolete part for an older furnace has to be chased through a supplier before anyone can price it. We diagnose the fault first, name it, tell you what it takes to put right, and you decide before a part comes out of the van. Nothing reaches the bill that you did not agree to.
- Yes. After hours, weekends and statutory holidays carry an additional call-out charge on top of the repair itself, because somebody is leaving their house to come to yours outside the working day. You will be told the figure on the phone before anyone is dispatched, so you can decide whether the fault is worth calling out for tonight or whether it can wait for regular hours. We would rather tell you that up front than surprise you with it on the invoice, and if the honest answer is that waiting costs you nothing, we will say so.
- Yes. An owner of TNT Heating answers the phone at 3am, not a receptionist in another province and not a voicemail that gets read on Monday. A house with no heat is treated as an emergency at any hour, we will talk you through what to check while you are still on the phone, and we will be straight with you about how soon somebody can be there rather than leaving you waiting and wondering. If a van is not the right answer at that hour, you will hear that too.
- Most Calgary no-heat calls are fixed on the same visit, usually inside an hour or two. Ignitors, flame sensors, capacitors, pressure switches and thermocouples are the faults we see most often and those parts travel on the van, so the visit is diagnosis, replacement, and a test of the full sequence before we leave. A blower motor, an inducer assembly, or a control board for an older or less common furnace sometimes has to be ordered, and if that happens you will hear the realistic timeline on the day rather than a hopeful one.
- Not for a straight repair. Replacing a failed component on an existing appliance is service work, so swapping an ignitor, a flame sensor, a pressure switch, a capacitor or a control board needs no permit and no inspection. Permits attach to the work that changes the installation itself: replacing the appliance, altering the gas line, or changing how the furnace vents. Where a job crosses that line we apply for the permit and book the inspection as part of the work, and we will tell you it is coming before you agree to anything.
- Sometimes it absolutely is, and we will tell you which side of the line yours falls on. A furnace in this climate generally gives 15 to 20 years, so a small repair on a 16 year old unit that is otherwise running cleanly is usually money well spent. Where the arithmetic changes is an expensive part on a tired unit, because that repair buys you a year or two and a replacement buys you twenty. Age on its own does not decide it. The condition of the heat exchanger, how many faults the unit has already given you, and what the failed part costs are what decide it, and you get both numbers and the reasoning before you choose.
- No. Rebate and incentive programs are written for efficiency upgrades, so they attach to replacing equipment with something that burns less gas or uses less power, not to fixing what is already there. A furnace repair in Calgary keeps your existing efficiency exactly where it was, which is why nothing is available for it. If the honest answer on your furnace turns out to be replacement rather than repair, that is the point at which incentives and monthly payment options are worth talking about, and we will walk you through what your unit would actually qualify for.
- Yes, we repair the forced air furnaces found in Calgary homes regardless of who put them in. Ignition systems, gas valves, blowers, inducers, pressure switches and control boards work on the same principles across the makes, and diagnosis is done with a manometer, a multimeter and a combustion analyser rather than a brand badge. Older mid-efficiency units venting up a chimney, high-efficiency condensing furnaces on plastic sidewall venting, and rooftop equipment are all in scope. Where a part is genuinely obsolete we will say so rather than quietly fitting something that does not belong in your appliance.
- Boot covers go on at the door, drop sheets go down in front of the furnace, and the first thing that happens is a conversation rather than a parts swap. We run the appliance through its sequence of operation with a meter on the board terminals so we can see which step fails, put a manometer on the gas and the pressure switch, and read static pressure across the ductwork if airflow is part of the story. Then you get the fault named in plain words and the price in writing, before a part comes out of the van. The old part leaves with us, and the work area is cleaned up before we go.
- Yes, there is a two year warranty on the labour. If the workmanship is what failed, we come back and put it right at no cost to you. Parts carry whatever warranty the manufacturer gives them on top of that. TNT Heating has been family run in Calgary since 2020 and every technician who works on your furnace is an in-house employee rather than a subcontractor hired for the week, which is the reason we are comfortable standing behind the work rather than pointing at somebody else when it comes back.
Question not answered here? Ask TNT Heating directly or call (403) 408-6136.
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Need furnace repair in Calgary tonight?
Furnace repair Calgary homeowners can get at 2am, from a family run team that answers its own phone. Tell us the symptom and we will tell you what it points to.
Broken down right now? Call us. The line is 24/7 and an owner answers or calls straight back.
