# Emergency Commercial HVAC Repair Toronto | 24-Hour Dispatch > 24-hour emergency commercial HVAC repair in Toronto and the GTA. 2-4 hour response, $185 after-hours surcharge. Restaurant and healthcare priority. URL: https://torontocommercialhvac.ca/emergency-commercial-hvac-repair/ Repair $185 surcharge # 24-Hour Emergency Commercial HVAC Repair in Toronto, ON | After-Hours Dispatch for RTUs, Chillers, Boilers & Refrigeration Last updated: October 10, 2026 24-hour emergency commercial HVAC and refrigeration repair across Toronto and the GTA, with a 2-4 hour response. After-hours calls carry a $185 surcharge plus standard repair rates, and restaurants and healthcare get priority routing because one hour of walk-in freezer downtime can mean $8K in lost product. 24-hour emergency dispatch across Toronto and the GTA with 2-4 hour response. - 2-4 hour response, 24 hours a day - Priority routing: restaurants and healthcare - Stocked trucks for RTU, boiler and refrigeration parts - Written findings after every call Call (437) 524-2997 [tel:+14375242997 →](tel:+14375242997) Request Service [/contact/ →](/contact/) View pricing [#pricing →](#pricing) ![Emergency technicians working on a rooftop unit at night in Toronto](/images/misc/two-emergency-hvac-technicians-with-headlamps-work.webp) Quick Facts Pricing $185 surcharge Emergency response 2-4 hours, 24/7 Labour warranty 90 days Program lead Priya Venkataraman, Service Coordinator Commercial Credentials & Verification TSSA G1 + G2 Licensed Gas Technicians ESA Electrical Safety Authority 313A Refrigeration Licensed Refrigeration Mechanics $5M CGL + WSIB Enbridge-Authorized Since 2006 2-4 Hour Emergency Response 90-Day Labour Warranty on Repairs / 2-Year on Installs 5-Star Commercial Satisfaction 20+ Years Commercial-Only Toronto Commercial HVAC [/ →](/) runs a 24-hour emergency line for commercial HVAC and refrigeration across Toronto and the GTA. Emergency calls get a 2-4 hour response, day or night, for rooftop units, chillers, boilers, make-up air, walk-in coolers and freezers, and building controls. Every technician on the emergency rotation holds the same TSSA, ESA and 313A licences as our day crews. Commercial emergencies are about money and risk by the hour. One hour of walk-in freezer failure can mean $8K in lost product. A server room without cooling can overheat in under an hour. A boiler failure in a -20C week can freeze pipes and sprinkler lines. A chiller failure in a hospital puts patient care areas at risk. That is why we route restaurants, grocery and healthcare first, and why contract customers get priority on the line. After-hours calls carry a $185 surcharge plus standard repair rates. Standard diagnostics are $185 for HVAC and $225 for refrigeration, and you get a written quote before work starts. ## What Counts as a Commercial HVAC Emergency? - **Refrigeration failure** with product at risk: walk-in freezers, coolers, prep lines, display cases. See commercial refrigeration repair [/commercial-refrigeration-repair/ →](/commercial-refrigeration-repair/) . - **No heat** during freezing weather, especially where pipes or sprinkler lines can freeze. - **No cooling** in healthcare, labs, server rooms or buildings during a heat warning. - **Gas smell or CO alarm.** Leave the building and call your gas utility first. We repair and clear the appliance afterwards. - **Water leaking** from equipment into occupied space or onto electrical gear. - **Total system shutdown** affecting operations. ## How Our Emergency Response Works ### Triage Dispatch takes the building, equipment, symptoms and risk. Product, patient and safety risk set the priority, and contract sites move up the queue. ### Stabilize first On arrival the first job is to make the site safe and protect what matters: shutting down unsafe gas appliances, moving product to a reefer, staging temporary cooling or heat. ### Repair from truck stock Trucks carry contactors, capacitors, fan motors, igniters, ignition modules, boiler controls and refrigeration parts. About 80% of the Toronto commercial RTU fleet is covered from stock. ### Report A written report with findings, readings, parts and follow-up work goes to your file the next business day. ## Emergency Pricing | Item | Price | | --- | --- | | After-hours surcharge | $185 | | HVAC diagnostic | $185 (waived on repairs over $750) | | Refrigeration diagnostic | $225 | | Repairs | Standard published ranges | | Temporary equipment | Quoted per job | ## Common Emergency Scenarios We Handle ### Walk-in freezer down on a Saturday night Low-temp compressor, defrost or controller failure. We move product to a reefer if needed, repair the system and monitor thermal recovery. Details on walk-in freezer repair [/walk-in-freezer-repair/ →](/walk-in-freezer-repair/) . ### Heatwave lockouts The first week above 32C brings waves of high-pressure lockouts and failed fan motors. Crews are staged before the heat arrives. ### Cold-snap no-heat calls The first week below -15C brings ignition and boiler failures. Temporary heat is available while parts arrive. See commercial boiler repair [/commercial-boiler-repair/ →](/commercial-boiler-repair/) . ### Hospital or lab cooling loss Temporary chillers are staged the same day while the permanent repair proceeds. Our downtown hospital chiller emergency had temporary cooling running the same afternoon. ## Reduce Emergencies Before They Happen Most emergency calls trace back to something a maintenance visit would have caught: a pitted contactor, a fouled coil, a weak igniter, an iced evaporator. Sites on commercial HVAC maintenance [/commercial-hvac-maintenance/ →](/commercial-hvac-maintenance/) programs get fewer emergencies and priority routing when they do happen. Transparent Pricing ## How Much Does 24-Hour Emergency Commercial HVAC Repair Cost in Toronto? After-Hours Surcharge $185 Evenings, overnight, weekends and statutory holidays. - 2-4 hour response - 24 hours a day - Written findings Book This [tel:+14375242997 →](tel:+14375242997) Most Requested Standard Diagnostic $185 / $225 HVAC / refrigeration diagnostic, HVAC waived on repairs over $750. - Stocked trucks - Fixed quote before work - 90-day labour warranty Book This [tel:+14375242997 →](tel:+14375242997) Temporary Equipment Quoted Temporary cooling, heat or refrigeration while repairs are completed. - Same-day staging - Chillers, heaters, reefers - Removed after restart Book This [tel:+14375242997 →](tel:+14375242997) Standard diagnostic ($185 HVAC, $225 refrigeration) and repair rates apply. Temporary heating or cooling equipment is quoted separately when needed. Why Us ## Why Choose Toronto Commercial HVAC for 24-Hour Emergency? ### 2-4 Hour Response Staged crews across the GTA keep the 2-4 hour window from Etobicoke to Markham, 24 hours a day. ### Priority for Food and Health Restaurants, grocery and healthcare get priority routing because product and patient risk climbs by the hour. ### Stocked for the Fleet RTU, boiler and refrigeration parts on every truck, covering about 80% of the Toronto commercial RTU fleet. ### Full Licensing After Hours TSSA G1+G2, ESA and 313A licensed technicians on the night shift too, not apprentices. ### Temporary Equipment Temporary chillers, heaters and refrigeration staged the same day when a repair will take longer. ### Written Findings Every emergency call ends with a written report, so the next visit starts from facts. ## Repair or replace? Get the numbers first. A $185 diagnostic gives you written findings per unit, waived when the approved repair is over $750. (437) 524-2997 [tel:+14375242997 →](tel:+14375242997) Request Service [/contact/ →](/contact/) Process ## How Does Our 24-Hour Emergency Process Work? 1. 01 ### Call the 24-Hour Line A live dispatcher takes the building, equipment and symptoms. Product, patient or safety risk moves you up the queue. 2. 02 ### ETA Confirmed You get an arrival window and the technician calls ahead about roof access, keys and security. 3. 03 ### Stabilize First priority is safety and protecting product or patients: gas shutdown, temporary cooling, moving product to a reefer. 4. 04 ### Repair Most emergencies close from truck stock. Priya Venkataraman, Service Coordinator, tracks every open emergency until it is closed. 5. 05 ### Report and Follow-Up Written findings, readings and any follow-up work go to your file the next business day. Field Photos ## 24-Hour Emergency Work on Toronto Commercial Sites Track Record ## Related Commercial Projects All projects [/projects/ →](/projects/) ![Gas technicians repairing a suspended unit heater in a Scarborough warehouse](/images/featured/two-gas-technicians-on-a-scissor-lift-repairing-a-.webp) [/projects/scarborough-warehouse-red-tag-clearance/ →](/projects/scarborough-warehouse-red-tag-clearance/) Scarborough $42,500 ### Scarborough Warehouse 7-Unit Enbridge Red Tag Clearance [/projects/scarborough-warehouse-red-tag-clearance/ →](/projects/scarborough-warehouse-red-tag-clearance/) Seven red-tagged gas appliances repaired, combustion tested and cleared in nine working days, so the warehouse had heat back before the first hard frost. Repair Case study [/projects/scarborough-warehouse-red-tag-clearance/ →](/projects/scarborough-warehouse-red-tag-clearance/) ![Technicians rebuilding a screw chiller in a downtown Toronto hospital](/images/featured/three-technicians-working-on-a-water-cooled-screw-.webp) [/projects/toronto-hospital-emergency-chiller-rebuild/ →](/projects/toronto-hospital-emergency-chiller-rebuild/) Downtown Toronto $94,000 ### Toronto Hospital 24-Hour Emergency Chiller Rebuild [/projects/toronto-hospital-emergency-chiller-rebuild/ →](/projects/toronto-hospital-emergency-chiller-rebuild/) A screw compressor failure in a heatwave, temporary cooling online the same day, and a full compressor rebuild in six days with infection control rules followed throughout. Repair Case study [/projects/toronto-hospital-emergency-chiller-rebuild/ →](/projects/toronto-hospital-emergency-chiller-rebuild/) Client Feedback ## What Clients Say About Our 24-Hour Emergency 5-Star Commercial Satisfaction > "Our walk-in failed at midnight with a 300-guest wedding the next day. They had a compressor in by 6am and every tray was safe." Rosa Esposito Executive Chef, Banquet hall kitchen Vaughan (Woodbridge) Overnight walk-in cooler compressor replacement before a 300-guest event$4,600 > "One of our cooling units failed on a Sunday night. Temporary cooling was running inside two hours and the permanent fix was done Monday." Tyler Brandt Data Centre Operations Lead, Colocation suite in an office building Downtown Toronto Emergency CRAC unit repair with temporary cooling$7,850 > "We lost heat on the coldest night of the year. They were on the roof within three hours and the clinic opened on time." Nkechi Eze Clinic Administrator, Outpatient medical clinic Brampton After-hours RTU gas heat repair in a -22C cold snap$1,950 Straight Answers ## 24-Hour Emergency FAQs ### How fast can you respond to a commercial HVAC emergency in Toronto? + Emergency calls get a 2-4 hour response across Toronto and the GTA, 24 hours a day, including weekends and holidays. Restaurants, grocery and healthcare sites get priority routing because product and patient risk climbs fast, and contract maintenance customers move to the front of the queue. Dispatch confirms an arrival window by phone, and the technician calls ahead to sort out roof access, keys and security sign-in so no time is lost on arrival. Our Vaughan grocery contract averaged a 2:40 response through 2025 with zero product loss, and our downtown hospital chiller emergency had a crew on site in under three hours. ### How much does emergency commercial HVAC repair cost? + After-hours calls add a $185 surcharge on top of standard rates. The standard diagnostic is $185 for HVAC and $225 for refrigeration, and the HVAC diagnostic is waived on repairs over $750. Repair pricing is the same as daytime once the technician is on site, and you get a written quote before work starts. Temporary cooling, heat or refrigeration equipment is quoted separately when a repair will take longer than the building can wait. ### What counts as an emergency? + Loss of refrigeration with product at risk, no heat in freezing weather, no cooling in healthcare or server rooms, gas smells or CO alarms, water leaking from equipment into occupied space, and any failure that shuts down operations. If you smell gas, leave the area and call your gas utility first. ### Do you handle walk-in freezer emergencies overnight? + Yes. Walk-in freezer and cooler failures get top priority on the 24-hour line, with 313A refrigeration mechanics on call. We also help arrange reefer trailers when product must be moved. ### Can you provide temporary cooling or heat? + Yes. Temporary chillers, portable cooling, temporary heaters and refrigeration can be staged the same day when a permanent repair needs parts or more time. ### Are night-shift technicians fully licensed? + Yes. Emergency calls are handled by TSSA, ESA and 313A licensed technicians, the same people who work days. ### Do you serve the whole GTA after hours? + Yes. 20+ GTA cities, with dedicated crews for Downtown Toronto, Mississauga, Vaughan, Brampton, Etobicoke, North York, Scarborough and Markham. ### Do contract customers get faster emergency service? + Yes. Sites on a maintenance program get priority routing on the 24-hour line. ### Is there a warranty on emergency repairs? + Yes. The same 90-day labour warranty as any repair, with manufacturer parts warranties passed through. ### What should we do while waiting for the technician? + Keep walk-in doors closed, move critical product if you can, turn off equipment that is short cycling or making grinding noises, and clear access to the roof hatch or mechanical room. Dispatch will tell you anything else specific to your equipment. Free Tools ## Try the Commercial HVAC Service Finder Answer a few questions to find the right commercial HVAC or refrigeration service for your building. Take quiz [Try the Commercial HVAC Service Finder →](/tools/hvac-service-finder/) Keep Exploring ## Related Services ![Refrigeration mechanics repairing a condensing unit behind a Toronto restaurant](/images/misc/two-313a-refrigeration-mechanics-repairing-a-conde.webp) [/commercial-refrigeration-repair/ →](/commercial-refrigeration-repair/) ### Commercial Refrigeration Repair [/commercial-refrigeration-repair/ →](/commercial-refrigeration-repair/) $225+ diag Refrigeration repair for restaurants, grocery, convenience and food service. $450-$3,800. View service [/commercial-refrigeration-repair/ →](/commercial-refrigeration-repair/) ![Technicians repairing an iced evaporator inside a walk-in freezer](/images/misc/two-refrigeration-technicians-in-insulated-jackets.webp) [/walk-in-freezer-repair/ →](/walk-in-freezer-repair/) ### Walk-In Freezer Repair [/walk-in-freezer-repair/ →](/walk-in-freezer-repair/) $225+ diag Low-temp walk-in freezer repair with 24-hour priority routing. $650-$4,500. View service [/walk-in-freezer-repair/ →](/walk-in-freezer-repair/) ![Two technicians diagnosing a rooftop unit on a Toronto office roof](/images/misc/two-commercial-hvac-technicians-in-hard-hats-diagn.webp) [/commercial-hvac-repair/ →](/commercial-hvac-repair/) ### Commercial HVAC Repair [/commercial-hvac-repair/ →](/commercial-hvac-repair/) $185+ diag Diagnostic-first repair for RTUs, chillers, boilers and make-up air. $185 diagnostic waived on jobs over $750. View service [/commercial-hvac-repair/ →](/commercial-hvac-repair/) ![Gas technicians repairing a condensing boiler in a Toronto commercial boiler room](/images/misc/two-tssa-gas-technicians-repairing-a-lochinvar-cre.webp) [/commercial-boiler-repair/ →](/commercial-boiler-repair/) ### Commercial Boiler Repair [/commercial-boiler-repair/ →](/commercial-boiler-repair/) $185+ diag Hydronic, steam, condensing and firetube boiler repair, 500-6,000 MBH. $650-$8,500. View service [/commercial-boiler-repair/ →](/commercial-boiler-repair/) ![](/images/misc/two-commercial-hvac-technicians-in-hard-hats-walki.webp) 24-Hour Commercial Emergency Dispatch ## Ready to Book 24-Hour Emergency? 24-Hour Emergency Commercial HVAC Repair across Toronto and the GTA: $185 surcharge, written findings before any work, and a 2-4 hour emergency response. Call (437) 524-2997 [tel:+14375242997 →](tel:+14375242997) Request Service [/contact/ →](/contact/) - TSSA G1+G2, ESA, 313A - Written findings every visit - 90-day / 2-year labour warranty