24/7 Emergency HVAC Service
Emergency Furnace, Air Conditioner & Heat Pump Repair in Ottawa
No heat on a freezing night, a failed air conditioner during extreme heat, or a heat pump that will not run can become more than an inconvenience. AirZone provides 24-hour emergency HVAC service for urgent heating and cooling problems across Ottawa.
Explain what the equipment is doing, when the problem started, and whether anyone is at greater risk from the temperature. We will assess urgency and coordinate the next available on-call response from a directly employed AirZone technician.
Suspect a Gas Leak or Carbon Monoxide? Leave the Home First.
An HVAC service call is not the first step when there may be an immediate gas or carbon-monoxide danger. Get everyone, including pets, to a safe location and contact emergency authorities before calling AirZone.
Rotten-egg or sulphur smell
Leave immediately. Do not operate lights, phones, appliances, vehicles, matches, or anything that may create a spark near the suspected leak. From a safe distance, call 911 or the Enbridge Gas emergency line at 1-866-763-5427. Follow Enbridge Gas leak-safety guidance.
Carbon-monoxide alarm or symptoms
If anyone has headache, dizziness, nausea, confusion, weakness, or other possible CO symptoms, go outside into fresh air and call 911. Do not use the furnace again until emergency responders and a qualified professional say it is safe.
What Qualifies as an HVAC Emergency?
An emergency is an active heating or cooling failure that may put people, plumbing, or property at risk if it waits for regular office hours. A tune-up, filter change, estimate, or system that is still keeping the home comfortable can usually be booked as standard service.
Furnace not working or no heat
The furnace or heating system will not start, repeatedly shuts down, blows cold air, or cannot keep the home at a safe temperature.
No cooling in extreme heat
The air conditioner has stopped during dangerous heat, particularly where infants, older adults, or people with medical conditions are affected.
Heat pump or hybrid failure
A heat pump is not heating or cooling, shows an error, repeatedly trips a breaker, or is not switching properly to backup heat.
Active equipment concern
Burning odours, electrical concerns, unusual operation, water near sensitive equipment, or another condition makes continued use feel unsafe.
If you are unsure, call and describe the symptoms. We will help you choose the right service and determine whether the equipment should remain off.
Emergency Furnace Repair and 24-Hour No-Heat Service
A furnace that stops during an Ottawa cold snap can allow indoor temperatures to fall quickly and may put plumbing at risk. Emergency furnace repair starts with diagnosis: the technician needs to determine whether the problem involves ignition, airflow, controls, venting, electrical components, the thermostat, a safety switch, or another part of the heating system.
AirZone service vehicles carry common parts, which can help with some first-visit repairs. The outcome still depends on the furnace, failed component, parts availability, access, and safety findings. If repair is not practical, we will explain why and help you compare the next step, including furnace replacement and installation, without pressure.
- Furnace will not start or will not stay running
- Cold air, weak heat, short cycling, or a fault code
- Unusual sounds, burning odours, or repeated shutdowns
- Heating failure affecting the whole home during freezing weather
If your furnace is not working but the situation can safely wait for regular scheduling, visit our Ottawa furnace repair service page. If the furnace is operating normally and only needs seasonal care, book annual furnace service instead of an emergency call.
Emergency AC and Heat Pump Repair in Ottawa
Emergency HVAC is not limited to furnaces. Central air conditioners, ducted heat pumps, ductless mini splits, and hybrid systems can fail when weather places the greatest demand on them. Their symptoms may overlap, but the diagnostic process is different.
Emergency air conditioner repair
Call when cooling has completely failed during extreme heat, the outdoor unit will not run, the system repeatedly trips a breaker, or water is leaking where it could damage the home. Turn the system off if you notice electrical or burning odours. For ordinary warm-air, freezing, leaking, or short-cycling problems during regular hours, start with our AC repair and cooling diagnostic service.
Emergency heat pump and hybrid repair
A heat pump may lose heating, cooling, or both. Hybrid systems can also have a coordination problem between the heat pump, furnace, thermostat, and backup heat. Tell us whether the failure affects heating or cooling, whether an error code is showing, and whether the outdoor unit is frozen or making a new sound. See our heat pump repair information for system-specific symptoms.
What to Do While Waiting for Emergency HVAC Service
Only take steps that are safe and familiar. Do not remove furnace panels, bypass a safety control, repeatedly reset a breaker, relight equipment when you are uncertain, or continue operating a system that smells hot or electrical.
What to Expect When You Call AirZone
Describe the equipment, the symptoms, your location, and any safety or temperature concern. AirZone will use that information to assess priority and coordinate the next available response.
- Your technician confirms the problem and tests the affected system.
- You receive an explanation of the findings and the available repair path.
- Approved repair work proceeds when it can be completed safely and the required parts are available.
- If replacement deserves consideration, the reasons and options are explained before you decide.
Emergency Calls Start With a Diagnostic
The diagnostic visit covers the technician’s time to attend the home, inspect the system, perform appropriate tests, and identify the cause. Repairs, parts, replacement equipment, statutory-holiday work, and other required services may be additional.
After-hours cooling help currently starts from $225 per hour plus HST, with rates depending on appointment type, timing, access, repair scope, parts, and availability. Confirm current emergency pricing when you call. For a non-urgent problem during office hours, our broader HVAC repair and diagnostic page explains the standard service process.
We do not promise that every system can be repaired on the first visit or within a fixed time. We do promise to give you useful information, practical options, and a clear understanding of what needs to happen next.
Get a Free Second Opinion Before You Decide
If another contractor has red tagged your furnace, do not restart it until a qualified professional says it is safe. Ask for the written tag and the reason the condition was identified.
AirZone offers Ottawa homeowners a free second opinion on a red-tagged furnace. We will review the reported condition and explain whether the next step is a repair, replacement, or another safety-related action. Learn how the process works on our red-tagged furnace second-opinion page.
Maintenance Plans With Priority Support
Family and Family+ memberships help Ottawa homeowners keep two eligible appliances on an annual maintenance schedule. AirZone’s booking page notes that Family Plan customers and current AirZone clients receive priority when urgent service is being scheduled.
The Family Plan includes member savings on eligible standard diagnostics, repairs, and filters. Family+ adds eligible parts and labour protection plus a 15% discount on emergency diagnostic and repair fees, subject to the full terms, exclusions, and required pre-inspection.
Membership does not replace emergency authorities and does not guarantee a specific arrival time. It can, however, make ongoing maintenance and access to the same local service team easier to manage. Compare AirZone Family and Family+ plans.
24-Hour Heating and Cooling Help Across Ottawa
If you searched for emergency HVAC service near me or 24-hour furnace repair in Ottawa, call AirZone with your neighbourhood, equipment type, and symptoms. Coverage extends across Ottawa and nearby communities, subject to call volume, technician availability, weather, and safe travel conditions.
Questions About 24/7 HVAC Service in Ottawa
Does AirZone provide 24/7 emergency HVAC service?
Yes. AirZone’s emergency line is available 24 hours a day, 7 days a week for urgent heating and cooling problems in Ottawa and nearby communities. Call 613-592-5770 and explain the equipment, symptoms, location, and any immediate comfort or safety concern.
Is a furnace not working an emergency?
A furnace that is not working may require emergency furnace repair when there is no heat during freezing weather, indoor temperatures are becoming unsafe, plumbing is at risk, or the system has electrical concerns, burning odours, or repeated shutdowns. If the home remains safe and the repair can wait for regular scheduling, use AirZone’s standard furnace repair service. A working furnace that is simply due for maintenance should be booked as routine furnace service.
Can AirZone repair my furnace in one visit?
AirZone vehicles carry common repair parts, and some repairs can be completed during the first visit. It is not possible to guarantee that outcome before the system is diagnosed. Equipment type, the failed component, parts availability, access, and safety findings all affect the repair.
Do you offer emergency AC repair during an Ottawa heat wave?
Yes. Call when an air conditioner or cooling system has failed during extreme heat, especially if infants, older adults, or people with health conditions are affected. Response timing depends on call urgency, current demand, location, weather, and technician availability.
Do you provide emergency heat pump repair?
Yes. AirZone diagnoses urgent problems with ducted heat pumps, ductless mini splits, and hybrid systems. Tell us whether the problem affects heating, cooling, one zone, or the entire home, and report any error code, ice, leak, unusual sound, or backup-heat concern.
What should I do if I smell natural gas?
Leave the building immediately and avoid phones, switches, flames, vehicles, or anything that could create a spark near the suspected leak. From a safe distance, call 911 or Enbridge Gas at 1-866-763-5427. Contact AirZone only after emergency authorities have addressed the immediate danger and it is safe to do so.
What should I do if my carbon-monoxide alarm sounds?
If anyone has possible carbon-monoxide symptoms, move outside into fresh air and call 911 from a safe location. Do not operate the furnace or other fuel-burning equipment again until emergency responders and a qualified professional say it is safe.
Is emergency HVAC service more expensive than regular service?
After-hours, statutory-holiday, and emergency rates can be higher than regular office-hour service. Current after-hours cooling help starts from $225 per hour plus HST, with final charges depending on the appointment, timing, access, repair scope, and parts. Confirm current pricing when calling.
Do Family Plan members receive emergency-service benefits?
AirZone gives priority consideration to Family Plan customers and current clients when service is being scheduled. Family+ also includes a 15% discount on emergency diagnostic and repair fees, subject to the full plan terms, exclusions, equipment eligibility, and required pre-inspection.
Can AirZone check a red-tagged furnace?
Yes. AirZone offers Ottawa homeowners a free second opinion on a red-tagged furnace. Do not restart tagged equipment. Keep the written tag available so the technician can review the reported condition and explain the appropriate repair, replacement, or safety-related next step.
Need Emergency HVAC Service Now?
Call AirZone at 613-592-5770. Tell us which system is affected, what changed, and when the problem started.