# Commercial HVAC Toronto | TSSA G1/G2 RTU & PMA Service > Need commercial HVAC in Toronto? RTU service, restaurant make-up air & maintenance contracts with priority dispatch. TSSA G1/G2. Call 647-254-4113. URL: https://besthvactoronto.ca/commercial-hvac/ ![Best HVAC Toronto technicians servicing a commercial rooftop unit on a flat roof in Toronto](/images/hero/two-hvac-technicians-in-plain-navy-uniforms-servic.webp) # Commercial HVAC in Toronto: Rooftop Units, MUAs & PMAs Last updated: October 26, 2026 Best HVAC Toronto [/ →](/) has over 20+ years of Greater Toronto Area experience specialising in commercial hvac across Toronto and the wider GTA. Commercial HVAC installation, commercial heating and air conditioning service, and Planned Maintenance Agreements (PMAs) across Toronto and the GTA for restaurants, retail, offices, warehouses, and light industrial facilities. Our TSSA-certified crew services Rooftop Units (RTUs), packaged gas/electric units, make-up air units (MUA) for restaurant kitchen exhaust replacement, variable air volume (VAV) box commissioning, economizer with enthalpy sensor tuning, and 3-phase power HVAC equipment. Every install and service follows ASHRAE 62.1 for ventilation (typically 15-20 CFM outdoor air per occupant) and ASHRAE 90.1 for building energy performance code. Restaurant HVAC covers Type I hood exhaust rate sizing per NFPA 96 and matching MUA capacity for negative-pressure avoidance. Retail HVAC covers zone control commissioning across leased areas, thermostat migration to smart controls, and demolition-and-rebuild airflow rebalancing. Standard PMAs cover quarterly filter changes, biannual coil cleaning, annual combustion analysis and belt inspection, and priority dispatch during heat waves and cold snaps. A typical smaller commercial PMA (3-5 RTUs, 20,000-40,000 sq ft) runs $2,000-$4,500 annually at 2026 rates, with 10-15% repair discounts. Service calls and planned maintenance agreements are priced separately from capital projects. Same-day weekday capacity. 24/7 dispatch for gas emergencies and Enbridge Red Tags. - check\_circle TSSA G1/G2 certified - check\_circle 20+ years experience - check\_circle Manufacturer-Authorized Dealer call Call 647-254-4113 [tel:+16472544113 →](tel:+16472544113) View pricing [#pricing →](#pricing) payments **From $10,000**. per project, quoted individually - star star star star star 4.9 (150+ reviews) - verified TSSA G1/G2 Certified & $2M Insured - bolt 2-Hour Emergency Response - workspace\_premium Manufacturer-Authorized Dealer Common problems ## Sound familiar? business ### A rooftop unit down during business hours Lost cooling or heating in a restaurant or retail space costs revenue every hour. We dispatch fast and carry parts for common commercial RTU brands. fact\_check ### No maintenance contract, so failures come as a surprise Reactive repairs cost more than planned maintenance. We set up scheduled service so small issues get caught before they become emergency calls. request\_quote ### Unclear where the maintenance budget is going We provide written scopes and itemized quotes for every commercial job, so property managers can plan and budget with real numbers. ## Commercial heating, cooling, and ventilation under one contract Best HVAC Toronto is a TSSA-certified commercial HVAC contractor in Toronto, handling commercial heating, commercial air conditioning, and ventilation for property managers with multi-site portfolios, restaurants, retail plazas, offices, warehouses, and industrial facilities across the GTA. The work spans packaged rooftop unit installation and replacement, make-up air and commercial kitchen ventilation, commercial boiler rooms, VAV zone equipment, and planned maintenance agreements with priority dispatch. Our crew brings 20+ years of combined Ontario HVAC experience, carries $2M general liability and WSIB coverage on every technician, and typically reaches emergency calls within two hours. Commercial work differs from residential in three ways that matter to how a job is run. First, downtime has a direct revenue cost, so scheduling around trading hours is part of the scope rather than a favour. Second, the equipment is larger and usually on a roof, which brings crane lifts, curb adaptation, permits, and coordination with roofing and electrical trades into every replacement project. Third, the compliance and documentation requirements are heavier, particularly for gas appliances and commercial kitchens. ![Technician recording economizer damper and enthalpy sensor readings during a rooftop unit maintenance visit in Toronto](/images/content/technician-recording-economizer-damper-and-enthalp.webp) We handle gas compliance in-house. Commercial rooftop units, make-up air units, and boiler rooms are gas appliances subject to the same TSSA requirements as residential equipment, and they get red-tagged [/enbridge-red-tag-compliance/ →](/enbridge-red-tag-compliance/) too. Because Best HVAC Toronto’s G1/G2 certified technicians are on the same crew that maintains your equipment, an inspection finding can be corrected and cleared without waiting on a second contractor. That is often the difference between a half-day outage and a week of disruption. ### What is included in a planned maintenance agreement Scheduled seasonal servicing with a documented reading sheet at every visit, filter and belt replacement, coil cleaning, economizer and damper operation checks, refrigerant and electrical verification, combustion analysis on gas sections, condition reporting with photographs, priority dispatch on breakdowns, and an annual capital planning summary so replacements can be budgeted rather than discovered. ## Equipment we install and service across the GTA ### Packaged rooftop units The workhorse of Toronto retail and light commercial, from strip plazas in Scarborough to office podiums in North York. We supply and install Carrier, Trane, Lennox, and York packaged units, including heat pump RTUs for owners moving part of their heating load off gas. We size on actual load rather than replacing tonnage for tonnage, adapt or replace curbs, coordinate the crane lift, and commission the unit with recorded readings. Economizers get particular attention, since seized dampers and failed enthalpy sensors are among the most common and most wasteful faults we find. ### Restaurant and commercial kitchen HVAC Exhaust hoods remove enormous volumes of air, and that air has to be replaced. Undersized or failed make-up air makes doors hard to open, causes appliances to draft poorly, and pulls conditioned air out of the dining room. We size and balance make-up air properly against total exhaust volume. ### Office and retail systems Split systems, packaged units, and VAV zone equipment. Zone-level complaints usually trace to a failed VAV actuator or controller rather than the central plant, which is a much cheaper fix once correctly diagnosed. We also install dedicated ductless cooling for server rooms and IT closets that need to run around the clock, independent of the building’s occupied-hours schedule. ### Warehouse and industrial Industrial HVAC for distribution centres and light manufacturing in Mississauga [/service-areas/mississauga/ →](/service-areas/mississauga/) , Brampton [/service-areas/brampton/ →](/service-areas/brampton/) , and the Concord and Woodbridge employment lands of Vaughan [/service-areas/vaughan/ →](/service-areas/vaughan/) : unit heaters, make-up air, destratification, and ventilation for large-volume spaces where heating a full building height is rarely the efficient answer. ### Commercial boiler rooms Cascade and staged condensing boilers [/boiler-installation-repair/ →](/boiler-installation-repair/) , circulators, and controls for mid-rise rental buildings, condominiums, and commercial buildings, with documented annual boiler service, combustion testing, and safety control checks. ## How much does commercial HVAC cost in Toronto? Equipment size and count come first: tonnage, heating capacity, and how many units are involved. Second is access and rigging, since a crane lift on a busy street with occupancy permits costs considerably more than a lift into an open parking lot. Third is curb and duct adaptation. New units rarely match the footprint of what they replace, so a curb adapter or transition ductwork [/ductwork-duct-cleaning/ →](/ductwork-duct-cleaning/) is usually required. Fourth is controls and electrical, particularly where three-phase service or building automation integration is involved. Fifth is scheduling. Work phased overnight or across a weekend to protect trading hours costs more in labour but usually far less than the revenue lost to a weekday closure. We put all five into a written scope with the phasing plan included, so you can weigh the trade-off with real numbers in front of you. ## Signs your rooftop unit is due for replacement Commercial rooftop units carry heating, cooling, and ventilation for most Toronto retail, restaurant, warehouse, and light industrial buildings. They are engineered for 15-20 year service lives with proper maintenance and considerably less without it. The maintenance schedule matters: quarterly filter changes, biannual coil cleaning, annual belt and bearing inspection, and biannual refrigerant charge verification. Planned Maintenance Agreements (PMAs) typically bundle these visits and reduce unplanned failure rates by 60-80%. Signs an RTU is approaching replacement: age above 15 years combined with rising repair frequency (more than two unplanned calls per season); refrigerant leaks that require recharge more than once per season, especially on R-22 units where refrigerant cost has become punitive; visible rust or corrosion on the cabinet, particularly around drain pans and refrigerant line connections; a compressor that hesitates or short-cycles even after capacitor replacement; and rising utility bills at consistent building load, indicating declining efficiency across the compressor and coil. In 2026, replacement cost for a typical 5-10 ton commercial RTU runs $10,000-$25,000 installed depending on capacity, efficiency tier, and roof access complexity. We provide equipment tenders alongside PMA proposals so property managers can budget both maintenance and eventual replacement in the same conversation. ## Kitchen exhaust, make-up air, and retail code requirements Restaurant HVAC is fundamentally more complex than retail because of kitchen exhaust and make-up air requirements. Commercial kitchen ventilation follows ASHRAE 154 and NFPA 96 for hood design, exhaust rates, and make-up air (MUA) sizing. Every cubic foot of air exhausted through the hood must be replaced with equal outdoor air, tempered in winter and dehumidified in summer, or the restaurant develops negative pressure that pulls exterior doors closed, disrupts hood capture, and pushes odours through neighbouring tenant spaces. Sizing an MUA unit for a 500 CFM kitchen hood typically requires a 3-5 ton dedicated unit with electric or gas heating, running $8,000-$20,000 installed. Retail HVAC is simpler but must meet ASHRAE 62.1 for ventilation rates (typically 15-20 CFM outdoor air per occupant plus a floor area component) and ASHRAE 90.1 for building energy performance (envelope, lighting, and HVAC efficiency baselines used across most Ontario commercial construction). Common triggers for retail HVAC work: tenant fit-outs requiring new zone controls or capacity additions, thermostat migration from mechanical to digital or Wi-Fi controls, and demolition-and-rebuild interior renovations that require rebalancing airflow across the reconfigured space. Retail typically runs on packaged rooftop units or split systems sized for the leased area, with maintenance handled through the property management contract. We provide both single-tenant service and full property portfolio PMAs for retail centres. ## Fewer emergency calls with a planned maintenance agreement A Planned Maintenance Agreement (PMA) is a scheduled service contract that covers all preventive maintenance on the covered HVAC equipment over a 12-month term, with priority dispatch for any unplanned service calls. Standard PMA scope for commercial equipment: quarterly filter changes on all covered units; biannual coil cleaning (spring and fall); annual belt, bearing, and motor inspection with amperage measurements; biannual refrigerant charge verification with subcool and superheat readings; annual combustion analysis and safety checks on all gas-fired equipment; annual condensate drain flush and pan cleaning; and documented inspection reports filed after every visit. PMA benefits go beyond the maintenance itself. Priority dispatch means covered clients skip the queue on emergency calls, typically getting on-site response within 4 hours (or 2 hours in the case of Enbridge Red Tag calls) versus 24-48 hours for non-contract callers during peak periods. Repair pricing is typically discounted 10-15% for covered clients, and parts pricing runs at cost-plus rather than retail markup. Equipment tracking is documented across visits, so age, repair history, and remaining useful life are always current for capital budget planning. Contract pricing depends on equipment count and complexity: typical smaller commercial PMAs (3-5 rooftop units, 20,000-40,000 square feet) run $2,000-$4,500 annually at 2026 rates. Larger portfolios (10+ units across multiple sites) are quoted on volume with substantial per-unit discounts and often include annual capital planning reports covering replacement timing for aging equipment. Transparent pricing ## How much does commercial cost in Toronto? Service calls and planned maintenance agreements are priced separately from capital projects. receipt\_long Written quote before any work begins. No hidden fees. ### Planned maintenance agreement Per year, per typical RTU Starting from $ 1,800 per project, quoted individually - check Scheduled seasonal servicing - check Priority dispatch on breakdowns - check Documented readings each visit - check Budget planning for replacements Get a quote [tel:+16472544113 →](tel:+16472544113) MOST COMMON ### RTU replacement Typical single unit swap Starting from $ 18,000 per project, quoted individually - check Load and tonnage assessment - check Crane lift and curb adaptation - check Permits and coordination - check Commissioning and handover Get a quote [tel:+16472544113 →](tel:+16472544113) ### Multi-unit project Larger sites, quoted per project Starting from $ 50,000 per project, quoted individually - check Multiple RTUs or full system - check Phased work around trading hours - check Make-up air and ventilation - check Full documentation package Get a quote [tel:+16472544113 →](tel:+16472544113) Prices are guide ranges for Toronto and the GTA. Final pricing depends on your equipment, access, and site conditions, and we confirm it in writing before starting. Request a free estimate [/contact/ →](/contact/) or call 647-254-4113 [tel:+16472544113 →](tel:+16472544113) . savings Financing available on approved credit, plus lease-to-own with zero down on qualifying installs. Why us ## Why choose Best HVAC Toronto for commercial? domain ### One contractor across the portfolio Property managers get a single point of contact for rooftop units, boiler rooms, make-up air, and gas compliance across multiple sites. bolt ### Priority dispatch under contract Maintenance agreement clients get priority when something fails, which for a restaurant or a retail unit is the difference between a slow day and a closed one. verified\_user ### Gas compliance in-house Commercial gas appliances draw red tags too. Our TSSA G1/G2 technicians can inspect, repair, and sign the clearance without bringing in another contractor. schedule ### Work phased around trading We schedule around your operating hours, including nights and weekends, so a rooftop replacement does not cost you a week of revenue. ## How Best HVAC Toronto compares | Feature | Typical provider | Best HVAC Toronto | | --- | --- | --- | | Response under contract | Same queue as everyone | Priority dispatch for agreement clients | | Gas compliance work | Subcontracted out | TSSA G1/G2 in-house | | Maintenance records | Invoice only | Documented readings each visit | | Scheduling | Business hours only | Phased around your trading hours | | Capital planning | Reactive replacement | Condition reporting and budget forecasting | | Insurance and coverage | Varies by contractor | $2M general liability and WSIB on every technician | How it works ## How does our commercial service work? 1. 1search ### Site survey We assess the existing equipment, roof access, electrical service, tonnage against actual load, and any operational constraints on when work can happen. 2. 2description ### Scope and quote You get a written scope covering equipment, crane requirements, curb adaptation, permits, and the schedule, with phasing options where trading hours matter. 3. 3engineering ### Execute We coordinate crane lifts, permits, and trades, and phase work outside operating hours where required so your business keeps running. 4. 4verified ### Commission and document Full commissioning with recorded readings, controls configuration, and a documentation package for your records, insurers, and future maintenance. ## Not sure what your commercial situation needs? Get a straight answer and a written price, with the numbers to back it up. No pressure, no scare tactics. call 647-254-4113 [tel:+16472544113 →](tel:+16472544113) Book Online [/contact/ →](/contact/) Our work ## Recent commercial projects Click any image to enlarge. Reviews ## What customers say about our commercial work starstarstarstarstar4.9 out of 5 from 150+ customer reviews star star star star star > They took over four buildings from a previous contractor and had the boiler rooms documented properly within a month. Reporting is far better than what we had. PProperty manager, mid-rise portfolioToronto star star star star star > Make-up air unit failed on a Friday. They were on the roof within a couple of hours and we opened on time. That response is why we signed a maintenance agreement. RRestaurant ownerMississauga star star star star star > Two rooftop units replaced over a weekend so we never lost a shift. Crane, permits, and the schedule were all handled without us chasing anyone. WWarehouse operations leadBrampton FAQ ## Commercial questions, answered ### How much does commercial HVAC cost in Toronto? expand\_more Commercial projects are quoted individually and, at 2026 pricing, run $10,000 to $50,000 or more. A single packaged rooftop unit replacement for a small retail space sits near the lower end. Multi-unit replacements, make-up air systems, and full building projects run considerably higher. Service calls and maintenance agreements are priced separately from capital work. ### Are there energy rebates for commercial HVAC upgrades in Ontario? expand\_more Yes. Ontario businesses can apply for incentives on high-efficiency equipment through the provincial Save on Energy business programs, and Enbridge Gas runs commercial energy efficiency incentives for gas-fired heating and ventilation equipment. Eligibility and amounts depend on the program and equipment, and most require pre-approval before installation, so we provide the equipment specifications and efficiency data you need for the application as part of the quote. ### What is a rooftop unit and when does it need replacing? expand\_more A rooftop unit, or RTU, is a packaged system combining heating, cooling, and ventilation in a single cabinet mounted on a roof curb. Commercial RTUs typically last 15 to 20 years. Replacement is warranted when the compressor or heat exchanger fails on an older unit, when refrigerant availability becomes an issue, or when the tonnage no longer matches how the space is actually used. ### Do you offer maintenance contracts for property managers? expand\_more Yes. Planned maintenance agreements cover scheduled seasonal servicing with documented readings at every visit, priority dispatch on breakdowns, 10-15% repair discounts, and annual condition reporting so you can forecast capital replacement rather than discovering it. Agreements are structured per site or across a portfolio, and a site with 3-5 rooftop units typically runs $2,000-$4,500 per year. ### Can you work outside our business hours? expand\_more Yes, and for retail and restaurant clients we usually do. Rooftop replacements requiring a crane lift are commonly scheduled for a weekend or overnight so the business keeps trading. We include the phasing plan in the written scope so you know exactly what happens when. ### Do you service commercial kitchen ventilation? expand\_more Yes. We install and maintain make-up air units, which supply the air a commercial kitchen exhaust hood removes. Undersized or failed make-up air is the reason a kitchen goes negative, doors become hard to open, and appliances draft poorly. We size for the total exhaust volume and commission the balance properly. ### What is an economizer and why does it matter? expand\_more An economizer is a damper section on an RTU that brings in outdoor air for free cooling when conditions allow, rather than running the compressor. In Toronto's shoulder seasons that saves a meaningful amount of energy. Economizer dampers and enthalpy sensors are also among the most frequently seized and neglected components on rooftop units, which is why we check them at every visit. ### Can commercial gas appliances be red-tagged? expand\_more Yes, and it is disruptive when it happens because the affected appliance is shut down immediately. Commercial rooftop units, make-up air units, and boiler rooms are all gas equipment subject to the same code. Our TSSA G1/G2 technicians handle the inspection, repair, and signed clearance in-house rather than subcontracting, which shortens the outage considerably. ### Do you handle permits and crane coordination? expand\_more Yes. Commercial replacement work commonly needs a mechanical permit, a crane lift with street or lot occupancy arrangements, roof curb adaptation, and coordination with electrical and roofing trades. We manage all of it as part of the project scope so you are not coordinating four contractors yourself. ### What is a VAV box and do you service them? expand\_more A variable air volume box modulates airflow to a zone based on that zone's demand, allowing one air handler to serve many zones with independent control. We service VAV boxes, their actuators and controllers, and diagnose the zone-level complaints they cause when they fail, which typically present as one part of a floor being persistently too hot or too cold. ### How quickly can you respond to a commercial breakdown? expand\_more We run 24/7 emergency service for gas emergencies, no-heat, and no-AC calls across Toronto and the GTA, with a typical emergency response within two hours. Maintenance agreement clients get priority dispatch, which typically means on-site response within 4 hours versus 24-48 hours for non-contract callers during peak periods. Given what a closed day costs a restaurant or retail unit, the agreement generally pays for itself in one avoided closure. ## Related services device\_thermostatBoiler Installation & RepairCombi, condensing, and hydronic boiler installation, repair, and annual maintenance. [/boiler-installation-repair/ →](/boiler-installation-repair/) hvacDuctwork & Duct CleaningDuct design, installation, cleaning, repair, and dryer vent cleaning across the GTA. [/ductwork-duct-cleaning/ →](/ductwork-duct-cleaning/) gpp\_maybeEnbridge Red Tag Emergency ComplianceSame-day red tag inspection, repair, and re-certification so Enbridge can turn your gas back on. [/enbridge-red-tag-compliance/ →](/enbridge-red-tag-compliance/) ![](/images/hero/hvac-technician-in-plain-grey-uniform-kneeling-bes.webp) 24/7 for gas emergencies, red tags, no-heat and no-AC ## Ready to book commercial? Commercial HVAC installation, commercial heating and air conditioning service, and Planned Maintenance Agreements (PMAs) across Toronto and the GTA for restaurants, retail, offices, warehouses, and light industrial facilities. Our TSSA-certified crew services Rooftop Units (RTUs), packaged gas/electric units, make-up air units (MUA) for restaurant kitchen exhaust replacement, variable air volume (VAV) box commissioning, economizer with enthalpy sensor tuning, and 3-phase power HVAC equipment. Every install and service follows ASHRAE 62.1 for ventilation (typically 15-20 CFM outdoor air per occupant) and ASHRAE 90.1 for building energy performance code. Restaurant HVAC covers Type I hood exhaust rate sizing per NFPA 96 and matching MUA capacity for negative-pressure avoidance. Retail HVAC covers zone control commissioning across leased areas, thermostat migration to smart controls, and demolition-and-rebuild airflow rebalancing. Standard PMAs cover quarterly filter changes, biannual coil cleaning, annual combustion analysis and belt inspection, and priority dispatch during heat waves and cold snaps. A typical smaller commercial PMA (3-5 RTUs, 20,000-40,000 sq ft) runs $2,000-$4,500 annually at 2026 rates, with 10-15% repair discounts. Written quotes before work begins, and manufacturer parts coverage registered on your behalf. call Call 647-254-4113 [tel:+16472544113 →](tel:+16472544113) Get a Free Estimate [/contact/ →](/contact/) - check\_circle Manufacturer registration filed on your behalf - check\_circle Written quotes before work starts - check\_circle TSSA G1/G2 certified, WSIB covered Cities we serve ## Commercial HVAC Across the GTA Commercial HVAC installation and service for rooftop units (RTU), make-up air units (MUA), variable air volume boxes, and planned maintenance agreements for restaurants, retail, and offices. ### Commercial HVAC in North York City of Toronto [Commercial HVAC in North York →](/commercial-hvac/north-york/) ### Commercial HVAC in Etobicoke City of Toronto [Commercial HVAC in Etobicoke →](/commercial-hvac/etobicoke/) ### Commercial HVAC in Scarborough City of Toronto [Commercial HVAC in Scarborough →](/commercial-hvac/scarborough/) ### Commercial HVAC in Vaughan City of Vaughan [Commercial HVAC in Vaughan →](/commercial-hvac/vaughan/) ### Commercial HVAC in Markham City of Markham [Commercial HVAC in Markham →](/commercial-hvac/markham/) ### Commercial HVAC in Mississauga Peel Region [Commercial HVAC in Mississauga →](/commercial-hvac/mississauga/) ### Commercial HVAC in Brampton Peel Region [Commercial HVAC in Brampton →](/commercial-hvac/brampton/) ### Commercial HVAC in Richmond Hill City of Richmond Hill [Commercial HVAC in Richmond Hill →](/commercial-hvac/richmond-hill/) ### Commercial HVAC in East York City of Toronto [Commercial HVAC in East York →](/commercial-hvac/east-york/) ### Commercial HVAC in Oakville Halton Region [Commercial HVAC in Oakville →](/commercial-hvac/oakville/) ### Commercial HVAC in Burlington Halton Region [Commercial HVAC in Burlington →](/commercial-hvac/burlington/) ### Commercial HVAC in Ajax Town of Ajax [Commercial HVAC in Ajax →](/commercial-hvac/ajax/)