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Calgary & area Indoor air, water and humidity: measured, not guessed. Start the 3-minute check →

No Heat in Calgary? Do This First

Short answer: If you have no heat in Calgary, call Alberta Indoor Comfort at 587-792-1456 now. While you wait, check that the thermostat is set to HEAT with fresh batteries, the furnace switch and breaker are on, the filter is not clogged, and the furnace door is fully closed. Smell gas? Leave the home now. From outside, call 911 or ATCO Gas (1-800-511-3447).

What should I check when my furnace stops working?

Flowchart: what to check when your Calgary home has no heat. Start: the house has no heat. First question: Smell gas? If yes: Smell gas? Leave the home now. From outside, call 911 or ATCO Gas. ATCO Gas 24-hour emergency: 1-800-511-3447. Do not touch switches. If no, check four things in order. Is the thermostat set to HEAT, with fresh batteries? If not, set it to HEAT and put in fresh batteries. Is the furnace switch ON and the breaker not tripped? If not, turn the switch on and reset a tripped breaker. Is the filter clogged? If yes, replace the filter. Is the furnace door fully closed? If not, close it fully, because a safety switch stops the furnace when it is open. Final step: Still no heat? Call AIC 587-792-1456.
  1. Is the thermostat set to HEAT, with fresh batteries?
  2. Is the furnace switch ON and the breaker not tripped?
  3. Is the filter clogged? Replace it (see our filter check guide).
  4. Is the furnace door fully closed? A safety switch stops the furnace when it is open.
  5. Smell gas? Leave the home now. From outside, call 911 or ATCO Gas (1-800-511-3447). Do not touch switches.

More troubleshooting: furnace not working? How to fix no heat. For full emergency service details see Emergency Heating Services.

Do you come out after hours?

Yes. No-heat calls after 6 PM are handled as priority calls at premium pricing. We confirm the rate on the phone before dispatch.

How do I keep pipes and people safe while I wait?

Open cabinet doors under sinks and use safe electric space heaters. Never use a gas oven for heat.

What areas do you cover for no-heat calls?

Calgary and the surrounding service area: Red Deer to Lethbridge, Canmore to Drumheller, including Olds.

Frequently asked questions

Do you come out at night?

Yes. No-heat calls after 6 PM are priority calls at premium pricing, and we confirm the rate before dispatch.

What areas do you serve?

Calgary, plus Red Deer to Lethbridge and Canmore to Drumheller, including Olds.

Who answers the phone?

Carlita, our Sameday AI booking assistant, books you and arranges the callback at 587-792-1456.


What you get either way

  • The price you approve is the price you pay

    You see the number before anyone starts. It does not move on the day, and anything extra is approved in writing before it happens.

  • The person in your home works for us

    Our own technicians, on our own payroll. If something needs putting right, there is no subcontractor to chase.

  • Request service online any time

    Request service online any time and we’ll contact you with the next available time.

  • Your details stay with us

    We do not sell them, we do not share them, and we do not add you to a generic mailing list.

Start where you are

No pressure. Just a clearer view of your home.

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