What does a commercial HVAC preventative maintenance contract cover?
Commercial HVAC preventative maintenance contracts in Toronto run $2,500 to $25,000 per year per building, depending on RTU count, visit frequency, and scope. Biannual contracts are the starting point for buildings with one or two rooftop units; quarterly contracts are the standard for sites with three to five RTUs or where ASHRAE 62.1 ventilation documentation is required for compliance reporting. Monthly contracts are structured for large portfolios or high-traffic sites, such as food-service operations or buildings with many zones, where equipment intensity warrants closer monitoring.
Our crew arrives on the scheduled date, works through a documented inspection checklist, and delivers a written service report with readings within 24 hours of each visit. COI and WSIB certificates are on file and sent in advance for sites where vendor pre-qualification is required before roof or mechanical room access is granted.

What is inspected and serviced at each visit
Every contract visit covers the same core inspection scope, regardless of tier.
Filter and belt inspection and replacement where needed. Fouled filters raise static pressure across the system, which reduces airflow and increases fan motor load. Belt wear causes slippage and inefficient heat transfer. Catching these on a schedule keeps the unit running at rated efficiency between visits.
Coil washing on evaporator and condenser coils showing fouling. A dirty evaporator coil reduces cooling capacity and raises discharge temperatures; a fouled condenser coil impairs heat rejection, which raises head pressure and compressor load. Coil washing is one of the most effective ways to recover operating efficiency in a commercial RTU without equipment replacement.
Economizer damper and enthalpy sensor checks. The economizer brings in outdoor air for free cooling when conditions allow, which in Toronto’s shoulder seasons represents meaningful energy savings. Seized damper motors, failed enthalpy sensors, and damaged actuator linkages are among the most common faults found on RTUs that have not been regularly serviced.
Refrigerant pressure and leak verification. Our crew measures suction and discharge pressures and checks for leak indicators at common failure points: the evaporator coil header, service valves, and Schrader ports. A slow refrigerant leak that goes undetected will eventually cause a compressor failure, which costs far more to repair than finding and addressing the leak during a routine visit.
TSSA G1/G2 safety inspection on gas heating sections. Commercial rooftop units with gas heat are regulated gas appliances under the same code as residential equipment. Our certified crew inspects the heat exchanger, burner assembly, draft and venting, gas valve operation, and safety control sequencing at every visit. Any finding that creates an immediate hazard is reported in writing and corrected before the crew leaves.
ASHRAE 62.1 and ASHRAE 90.1 compliance documentation
ASHRAE 62.1 sets minimum outdoor air delivery rates for occupied commercial spaces. Compliance requires not only that the system is capable of delivering the required ventilation, but that it is actually doing so. Our quarterly and monthly contracts include measured outdoor air volume verification at each visit, recorded in the service report, giving property managers written documentation that ventilation requirements are being met.
ASHRAE 90.1 addresses system energy efficiency. Our inspection includes economizer operation verification, coil fouling assessment, and motor current measurements that together indicate whether the system is operating within the efficiency range it was designed for.
Master key and tenant coordination
For occupied commercial and multi-residential buildings, roof access and mechanical room access typically require coordination with building staff or security. Our maintenance contracts include master key protocols and a defined coordination procedure so visits proceed on schedule without delays at the door. Access requirements are confirmed during contract setup and updated whenever tenant or building management arrangements change.
What does commercial HVAC preventative maintenance cost in Toronto?
The contract price depends on three factors: the number of rooftop units or HVAC systems at the site, the visit frequency, and the scope of services included.
A biannual contract for a building with one or two RTUs and a standard inspection scope typically starts at $2,500 per year. A quarterly contract covering three to five RTUs, including ASHRAE 62.1 ventilation documentation, runs around $7,500 per year per building. Monthly contracts for large or high-traffic sites are priced individually and range up to $25,000 per year per building depending on the total equipment count and scope.
Multi-property portfolio pricing is available for property managers with multiple sites across the GTA. Portfolio agreements are structured with a single contract covering all sites, consolidated reporting and invoicing, and a per-building rate that reflects the volume across the portfolio.
All contracts are quoted in writing in CAD before the first visit.
Serving property managers and facility operators across Toronto and the GTA
Our commercial maintenance contracts cover buildings across Toronto, North York, Etobicoke, Scarborough, Mississauga, Brampton, Vaughan, Markham, Richmond Hill, and the broader Durham region including Ajax, Pickering, and Whitby.
For property managers handling multi-site portfolios, a single contract simplifies vendor management: one set of COI and WSIB documents on file, one consolidated invoice per period, one point of contact for scheduling across all sites. The condition report at year-end covers every building in the portfolio and provides the capital cost estimates needed to plan replacement budgets in advance of failures.
For commercial operators where HVAC downtime has a direct revenue cost, quarterly and monthly contracts include priority dispatch between scheduled visits, with a 2-hour target response for breakdowns across the GTA.
To set up a commercial HVAC preventative maintenance contract or request a portfolio quote, call our team at 647-254-4113.