# Commercial HVAC Installation Toronto | RTUs, Chillers & VRF > New-build and retrofit commercial HVAC installation in Toronto: RTU sets, chiller plants, boiler rooms, VAV and VRF fit-outs. $18K-$450K. ASHRAE 90.1 commissioning. URL: https://torontocommercialhvac.ca/commercial-hvac-installation/ Installation & Replacement $18K-$450K # Commercial HVAC Installation in Toronto, ON | Rooftop Units, Chillers, Boilers & Full Fit-Outs Last updated: October 10, 2026 New-build and retrofit commercial HVAC installation from load calculation through ASHRAE 90.1 commissioning. We set rooftop units, build chiller plants and boiler rooms, and run VAV and VRF fit-outs for Toronto offices, retail, restaurants and industrial buildings. New-build and retrofit installs: RTU sets, chiller plants, boiler rooms, VAV and VRF fit-outs. - Load calculation and equipment selection - Crane, rigging and permit coordination - BAS integration at start-up - 2-year labour warranty Call (437) 524-2997 [tel:+14375242997 →](tel:+14375242997) Request Service [/contact/ →](/contact/) View pricing [#pricing →](#pricing) ![Installers running piping and ductwork for a new commercial HVAC system in a Toronto office fit-out](/images/misc/three-installers-in-hard-hats-setting-refrigerant-.webp) Quick Facts Pricing $18K-$450K Emergency response 2-4 hours, 24/7 Labour warranty 2 years Program lead James Cheng, RTU Program Manager 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 [/ →](/) installs commercial heating, cooling and ventilation systems for new buildings, retrofits and tenant fit-outs across Toronto and the GTA. Our scope runs from the first load calculation to the final commissioning report: rooftop units, split systems, VRF, VAV, chiller plants, boiler rooms, make-up air and controls. Installations go wrong in predictable ways. Equipment is sized from the old nameplate instead of a real load, so new units short cycle or never catch up. Crane days slip because road permits were not booked. Controls are left to the end and the BAS never sees half the points. Ductwork and piping clash with sprinklers because trades did not coordinate. We plan around all four before anything is ordered. Projects range from $18,000 for a single rooftop unit up to $450,000 for a chiller plant. Most tenant fit-outs fall between $45,000 and $220,000. Every project gets a written scope and fixed price, and every installation carries a 2-year labour warranty. ## What Does Commercial HVAC Installation Include? ### Load calculation and design We calculate heating and cooling loads room by room using real occupancy, glazing, lighting and equipment loads. That drives equipment selection, zoning and duct or piping sizing, and it is checked against ASHRAE 90.1 and Ontario Building Code SB-10. ### Equipment setting and rigging Rooftop units, chillers, cooling towers and make-up air units usually go up by crane. We write the rigging plan, book the crane and road permits and run the lift with our own crew on the roof. ### Piping, ductwork and venting Refrigerant piping for VRF and split systems is brazed under nitrogen and pressure tested. Hydronic piping for boilers and chillers is flushed before fill. Gas piping and venting follow CSA B149.1. ### Controls and commissioning Thermostats, VAV controllers and plant controls are wired and programmed, then tied into the BAS over BACnet or Modbus. Start-up, balancing and a commissioning report close the job. For controls-heavy projects, see commercial BMS and HVAC controls [/commercial-bms-controls/ →](/commercial-bms-controls/) . ## Types of Commercial HVAC Installation | System | Best fit | Typical range | | --- | --- | --- | | Packaged rooftop units | Retail, low-rise office, industrial | $18K-$95K per unit | | VRF heat recovery | Office floors with mixed loads | $45K-$220K per fit-out | | VAV with central plant | Mid and high-rise offices | $45K-$220K per floor group | | Condensing boiler plant | Heating for offices, schools, multi-tenant | $60K-$280K | | Chiller plant | Towers, hospitals, campuses | $85K-$450K | Rooftop unit installation [/rooftop-unit-installation/ →](/rooftop-unit-installation/) and commercial AC installation [/commercial-ac-installation/ →](/commercial-ac-installation/) have their own pages with more detail on those systems. ## When Is a New Installation the Right Call? - **New construction or shell space.** A new building or a base-building shell needs a full design. - **Tenant improvement.** A new tenant changes occupancy, partitions or equipment loads. - **Change of use.** Office to lab, retail to restaurant or warehouse to light manufacturing changes the load completely. - **Failed or end-of-life systems.** When replacing like-for-like no longer fits the building, a redesign often saves operating cost for the next 20 years. ## What Drives Installation Cost? 1. **Tonnage and capacity.** Bigger loads mean bigger equipment and more distribution. 2. **Access.** Crane size, road closures and roof structure add real cost on tight downtown sites. 3. **Electrical and gas service.** Upgrading a panel or a gas meter can add tens of thousands. 4. **Controls scope.** Tying into an existing BAS costs less than building a new one. 5. **Schedule.** After-hours and weekend work in occupied buildings costs more but keeps tenants operating. ## Installation Across Toronto and the GTA We set rooftop units in Mississauga and Brampton industrial parks, run VRF fit-outs on Markham tech campuses and Hwy 404 offices, and install boiler rooms and chiller plants in downtown and North York towers. Our Markham tech campus VRF project, 24 indoor units for $215,000, is written up on our projects page [/projects/markham-tech-campus-vrf-fit-out/ →](/projects/markham-tech-campus-vrf-fit-out/) . Transparent Pricing ## How Much Does Commercial HVAC Installation Cost in Toronto? Single RTU or Split Set $18K-$95K New rooftop unit or split system with roof adapter, electrical and controls. - Load calculation - Crane and permit coordination - Start-up report Book This [tel:+14375242997 →](tel:+14375242997) Most Requested Tenant Fit-Out (VAV or VRF) $45K-$220K Floor or suite fit-outs with zoning, ductwork or refrigerant piping and controls. - Zoning design - Trade coordination with GC - BAS integration Book This [tel:+14375242997 →](tel:+14375242997) Boiler Room $60K-$280K Condensing or firetube boiler plants with pumps, venting and controls. - TSSA G1 gas work - Venting design - Combustion commissioning Book This [tel:+14375242997 →](tel:+14375242997) Chiller Plant $85K-$450K Air-cooled or water-cooled chiller installs with pumps, piping and plant controls. - Rigging plan - 313A refrigeration crews - ASHRAE 90.1 commissioning Book This [tel:+14375242997 →](tel:+14375242997) Ranges cover typical Toronto commercial projects. Final pricing depends on tonnage, crane logistics, electrical service, permits and controls scope. Every project gets a written scope and fixed price before mobilization. Why Us ## Why Choose Toronto Commercial HVAC for HVAC Installation? ### Design Before Equipment Every install starts with a load calculation, not a nameplate copy. Oversized units short cycle and undersized units never catch up. ### One Contractor, Full Licensing TSSA G1+G2 gas, ESA electrical and 313A refrigeration in-house, so the install is not split across three trades. ### Crane Days That Stay on Schedule Road permits, rigging plans and weekend lifts are planned weeks ahead so tenants and traffic are not disrupted. ### VRF Experience Mitsubishi City Multi and Daikin VRV heat recovery fit-outs, including branch selector boxes and refrigerant piping pressure tests. ### Commissioning You Can Use Start-up readings, balancing reports and BAS points handed over in one package, ready for the building file. ### 2-Year Labour Warranty Installations carry a 2-year labour warranty, with manufacturer parts coverage registered at start-up. ## 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 HVAC Installation Process Work? 1. 01 ### Site Survey We walk the building, measure the space, review drawings and confirm electrical, gas and structural capacity. 2. 02 ### Load and Design Room-by-room load calculation, equipment selection and a written scope that meets ASHRAE 90.1 and Ontario Building Code SB-10. 3. 03 ### Permits and Logistics Building permits, crane lift and road permits, utility coordination and a schedule built around your tenants or GC. 4. 04 ### Install Licensed crews set equipment and run piping, ductwork and controls. James Cheng, RTU Program Manager, owns the schedule and site meetings. 5. 05 ### Commission and Hand Over Start-up, balancing, BAS tie-in and a commissioning report, with manufacturer registration and a 2-year labour warranty. Field Photos ## HVAC Installation Work on Toronto Commercial Sites Track Record ## Related Commercial Projects All projects [/projects/ →](/projects/) ![Technicians installing VRF indoor units in a Markham office fit-out](/images/featured/two-technicians-on-ladders-installing-a-vrf-ceilin.webp) [/projects/markham-tech-campus-vrf-fit-out/ →](/projects/markham-tech-campus-vrf-fit-out/) Markham $215,000 ### Markham Tech Campus VRF Fit-Out 24 Indoor Units [/projects/markham-tech-campus-vrf-fit-out/ →](/projects/markham-tech-campus-vrf-fit-out/) A two-floor VRF heat recovery fit-out delivered on the tenant improvement schedule, with zone-level control for open office, meeting rooms and a small server room. Replacement Case study [/projects/markham-tech-campus-vrf-fit-out/ →](/projects/markham-tech-campus-vrf-fit-out/) Client Feedback ## What Clients Say About Our HVAC Installation 5-Star Commercial Satisfaction > "Their coordination drawings were done before rough-in and the commissioning package was complete on handover day. That almost never happens on a fit-out." Fiona Gallagher Project Manager, General contractor, 3-floor office fit-out Downtown Toronto VAV fit-out with 46 boxes and BAS integration$168,000 > "They sized everything from a proper load calc and set both rooftop units on one crane morning. Heat and ventilation passed inspection the first time." Darius Rahimi Owner, New-build automotive service centre Vaughan Two RTUs, radiant tube heaters and exhaust interlocks$94,000 > "The boiler room was done over the summer break and commissioned before the first cold week. The combustion reports went straight into our maintenance binder." Colin Fraser Facilities Director, Private school campus Scarborough Condensing boiler plant replacement with new controls$212,000 Straight Answers ## HVAC Installation FAQs ### How much does commercial HVAC installation cost in Toronto? + Commercial HVAC installation in Toronto typically runs from $18,000 for a single rooftop unit or split set up to $450,000 for a full chiller plant. Tenant fit-outs with VAV or VRF usually fall between $45,000 and $220,000, and boiler rooms between $60,000 and $280,000. The biggest cost drivers are tonnage, crane access and road permits, electrical service upgrades, gas piping, controls scope and whether the work happens during tenant hours. We price every project from a site survey and load calculation, then give you a written scope with a fixed price before mobilization so the budget does not drift once equipment is on order. ### Do you handle permits and crane lifts? + Yes. We pull mechanical permits, book crane lifts and City of Toronto or regional road occupancy permits, and coordinate with the utility for gas and electrical service. Lifts are usually scheduled for early mornings or weekends to keep streets and tenants clear. The rigging plan and lift schedule are shared in writing before the day, and our project lead is on site for every lift. ### How long does a commercial HVAC installation take? + A single RTU swap is usually one day on site once equipment arrives. Tenant fit-outs run two to eight weeks depending on size and the GC schedule. Chiller plants and boiler rooms take four to twelve weeks on site. Equipment lead times currently add four to twelve weeks before mobilization, so early ordering matters. ### Do you install VRF systems? + Yes. We install Mitsubishi City Multi and Daikin VRV systems, including heat recovery systems with branch selector boxes. VRF retrofits have been the largest Toronto office tenant improvement category in recent years because they handle mixed heating and cooling loads well. ### Which codes and standards do you design to? + ASHRAE 90.1 for energy, Ontario Building Code including SB-10, CSA B149.1 for gas and CSA B52 for refrigeration. Commissioning reports document the as-built performance against design. ### Can you work with our general contractor or architect? + Yes. We work as the mechanical subcontractor on many fit-outs and coordinate drawings, rough-in schedules and inspections with the GC and other trades. ### What warranty comes with an installation? + Installations carry a 2-year labour warranty. Manufacturer parts warranties are registered at start-up and passed through to you. ### Will the new system tie into our BAS? + Yes. BACnet or Modbus integration is planned at the design stage and completed at start-up, with alarms and trends set up in your existing building automation system. ### Are there incentives for high-efficiency equipment? + Enbridge and IESO programs often support high-efficiency boilers, heat pumps and controls. We help with pre-approval paperwork where programs require it before equipment is ordered. ### Do you install in occupied buildings? + Most of our installs are in occupied buildings. We phase work by floor or zone, schedule noisy work after hours and keep temporary heat or cooling on site when a system has to come down. Keep Exploring ## Related Services ![Installers mounting a VRF ceiling cassette in a Toronto office fit-out](/images/misc/two-installers-on-a-scissor-lift-mounting-a-vrf-ce.webp) [/commercial-ac-installation/ →](/commercial-ac-installation/) ### Commercial AC Installation [/commercial-ac-installation/ →](/commercial-ac-installation/) $14K-$220K New AC installs for fit-outs, TIs, VRF builds and chilled water extensions. $14K-$220K. View service [/commercial-ac-installation/ →](/commercial-ac-installation/) ![Crane lifting a new rooftop unit over a Toronto commercial building](/images/misc/mobile-crane-lifting-a-new-carrier-48tc-rooftop-un.webp) [/rooftop-unit-installation/ →](/rooftop-unit-installation/) ### Rooftop Unit Installation [/rooftop-unit-installation/ →](/rooftop-unit-installation/) $18K-$95K/unit RTU new installs, swaps and capacity upgrades. $18K-$95K per unit. View service [/rooftop-unit-installation/ →](/rooftop-unit-installation/) ![Controls technicians wiring a building automation panel in a Toronto tower](/images/misc/two-controls-technicians-wiring-a-bacnet-building-.webp) [/commercial-bms-controls/ →](/commercial-bms-controls/) ### Commercial BMS & HVAC Controls [/commercial-bms-controls/ →](/commercial-bms-controls/) $15K-$180K BMS install, retrofit and programming for towers, institutions and industrial sites. $15K-$180K. View service [/commercial-bms-controls/ →](/commercial-bms-controls/) ![Crane removing an end-of-life rooftop unit from a Toronto retail plaza](/images/misc/crane-removing-a-rusted-20-year-old-rooftop-unit-f.webp) [/commercial-hvac-replacement/ →](/commercial-hvac-replacement/) ### Commercial HVAC Replacement [/commercial-hvac-replacement/ →](/commercial-hvac-replacement/) $12K-$680K End-of-life replacement for 15+ year buildings with reserve-fund documentation per unit. View service [/commercial-hvac-replacement/ →](/commercial-hvac-replacement/) ![](/images/misc/two-commercial-hvac-technicians-in-hard-hats-walki.webp) 24-Hour Commercial Emergency Dispatch ## Ready to Book HVAC Installation? Commercial HVAC Installation across Toronto and the GTA: $18K-$450K, 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