Commercial and industrial HVAC service, repair and maintenance.
Rooftop units, chillers, boilers, make-up air, heat pumps and controls — 24/7.
Heating, cooling and ventilation for buildings that cannot be without them. We service the rooftop units, central plants, air handling and in-suite systems that commercial, industrial and residential buildings run on — 24/7, across the Greater Toronto Area and surrounding regions.
Request emergency service
Tell us what's down. We call back fast and dispatch — day or night.
Your information
Faster to call? 1-888-371-1161 — answered 24/7.
Trusted by
- 24/7 emergency dispatch
- TSSA · ODP/313A · G1 · WSIB
- Live updates on every call
- 15+ years on industrial & commercial systems
HVAC equipment we service
Everything below is equipment our licensed technicians diagnose, repair and maintain in industrial facilities, condominiums and apartment buildings, supermarkets, restaurants and commercial properties. If your system is not listed, call — it probably is.
- Rooftop & packaged units
- Heating
- Cooling plant
- Air handling & ventilation
- Split systems & heat pumps
- Controls & efficiency
Rooftop & packaged units
The workhorses on most commercial roofs.
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Gas/electric rooftop units (RTUs)
Burners, heat exchangers, compressors, condenser and blower motors, belts, economizers and controls.
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Heat-pump rooftop units
Reversing valves, defrost controls, compressors and auxiliary heat on electric and dual-fuel units.
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Packaged & self-contained units
Ground-level and indoor packaged units serving single zones and small buildings.
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Economizers & fresh-air controls
Dampers, actuators, sensors and logic that bring in free cooling and the right amount of outside air.
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Curb adapters & replacements
Like-for-like and upgraded rooftop unit replacements, including curb adapters and crane coordination.
Heating
Gas-licensed service on the equipment that keeps buildings warm.
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Hot water boilers
Condensing and non-condensing boilers: burners, ignition, combustion tuning, controls and safety devices.
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Boiler plant controls & staging
Lead-lag sequencing, outdoor reset and boiler management panels.
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Hydronic heating systems
Loops, risers, zone valves, circulators, expansion and air separation.
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Make-up air units
Direct- and indirect-fired make-up air for kitchens, corridors, production areas and warehouses.
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Unit heaters & radiant tube heaters
Gas-fired unit heaters and infrared tube heaters for garages, warehouses, docks and shop floors.
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Domestic & process hot water
Hot water boilers, storage tanks, recirculation pumps and mixing valves.
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Heat exchangers
Plate-and-frame and shell-and-tube exchangers on heating and hot water: cleaning, re-gasketing and repair.
Line down? Dispatch is one call away, 24/7.
Cooling plant
Chilled water and condenser water systems for larger buildings and processes.
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Chillers
Air-cooled and water-cooled scroll, screw and centrifugal chillers.
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Process & glycol chillers
Process cooling for production, equipment and secondary loops.
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Cooling towers & fluid coolers
Open towers, closed-circuit coolers and dry coolers: fans, fill, basins, pumps and controls.
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Chilled & condenser water pumps
Pumps, VFDs, seals, bearings, balancing and controls between plant and load.
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Seasonal changeover
Two-pipe heating/cooling changeovers timed to the weather.
Air handling & ventilation
Moving, cleaning and conditioning the air in every kind of building.
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Air handling units
Built-up and packaged AHUs: fans, coils, filters, dampers, drives and controls.
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Fan coil units
Two- and four-pipe fan coils in suites, offices and hotel rooms.
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VAV boxes & terminal units
Variable-air-volume boxes, reheat coils and terminal controls in commercial buildings.
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Exhaust fans & risers
Rooftop and inline exhaust fans, washroom and kitchen risers, belts, motors and controls.
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Kitchen exhaust hoods & make-up air
Commercial kitchen hoods, fans and matched make-up air.
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Parking garage ventilation & CO control
Garage exhaust fans with CO/NO₂ sensing and controls.
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Energy recovery ventilators (HRV/ERV)
Heat and energy recovery units: cores, wheels, fans, filters and controls.
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Dehumidification & humidity control
Desiccant and refrigerant dehumidifiers for pools, cold rooms, stores and production.
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Air balancing & pressurization
Measuring and setting air flows so zones hold the right pressure relationships.
Split systems & heat pumps
Zoned cooling and heating without a central plant.
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Ductless mini-split & multi-split systems
Wall, ceiling-cassette and ducted indoor units with their outdoor condensers.
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VRF / VRV systems
Variable refrigerant flow systems: outdoor units, branch controllers, indoor units and controls.
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Water-source heat pumps
In-suite and zone heat pumps on a condenser water loop.
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PTACs & through-wall units
Packaged terminal units in apartments, hotels and residences.
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Server room & precision cooling
Computer-room air conditioners and split systems protecting IT and electrical rooms.
Controls & efficiency
The brains of the system — and where most efficiency is won or lost.
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Thermostats & zone controls
Commercial thermostats, zoning panels and sensors.
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Building automation systems (BAS)
Points, schedules, alarms, sequences and integration across heating, cooling and ventilation.
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Variable-frequency drives
VFDs on fans and pumps: installation, programming and troubleshooting.
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Preventative maintenance programs
Seasonal inspections, filter and belt programs, coil cleaning and a written report with photos every visit.
Why building operators call us for HVAC
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24/7, including the coldest night
No-heat and no-cooling calls are dispatched around the clock, and we arrive with the parts most calls need.
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Licensed for gas and refrigeration
Gas Technician G1 and Refrigeration & A/C Mechanic (ODP / 313A) licences, TSSA registered, WSIB coverage.
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Root cause, not band-aids
We diagnose why the unit failed — not just what failed — and give you a clear price before the repair begins.
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Technology-first communication
Request from your phone, see the technician assigned, approve quotes online, and keep every report and photo per unit.
Talk to a technician now: 1-888-371-1161
“We have been working with Michael and his team at The Mechanical Company for years. Extremely professional, reliable and diligent. He has worked with us in tailoring a preventative maintenance program throughout our portfolio which has saved us countless dollars. We have and will recommend Michael and his team to anyone who is looking for the best when it comes to HVAC servicing”
“The Mechanical Company has been a reliable contact for us for a number of restaurant-related issues. They are skilled across a number of trades and are our go-to provider for repairs. When we have an issue we can rest assured that they will be onsite promptly and the equipment will be repaired properly”
Straight answers before you call.
Anything else? Call 1-888-371-1161 — a person answers.
What HVAC equipment do you service?
Rooftop and packaged units, hot water boilers and hydronic heating, make-up air, unit and radiant heaters, chillers, cooling towers, air handling units, fan coils, VAV boxes, exhaust and garage ventilation, HRV/ERVs, dehumidification, ductless splits, VRF, water-source heat pumps, PTACs, server room cooling, thermostats, building automation and VFDs.
Do you provide 24/7 emergency HVAC repair?
Yes. We dispatch 24 hours a day, 7 days a week, including holidays. Call 1-888-371-1161; a technician is assigned immediately.
Which buildings do you service HVAC in?
Industrial and food production facilities, condominiums and apartment buildings, supermarkets and grocery stores, restaurants and hospitality, and other commercial properties across the Greater Toronto Area and surrounding regions.
Do you replace rooftop units?
Yes. We replace rooftop units like-for-like or with higher-efficiency equipment, including curb adapters, gas and electrical coordination with the appropriate trades, crane scheduling and start-up.
Do you offer HVAC maintenance plans?
Yes. Seasonal inspections of rooftop units, boilers, make-up air, chillers and pumps, filter and belt programs and coil cleaning, scheduled around your building, with a written report and photos after every visit.
Who we serve
Industrial & Food Facilities Food production plants, warehouses and industrial sites 
Condos & Apartment Buildings Property managers, condo boards and superintendents 
Supermarkets & Grocery Grocery stores, fresh markets and convenience retail 
Restaurants & Hospitality Restaurants, chains, caterers, hotels and commercial kitchens
Something down right now?
Call and a licensed technician is dispatched — 24 hours a day, 7 days a week, across the Greater Toronto Area, Hamilton, Peterborough, and north to Barrie and Midland.