Commercial HVAC in Mississauga: Square One Offices, Dixie-Mavis Industrial & Pearson Warehouses
Mississauga is rooftop unit country: low-rise industrial parks along Dixie and Mavis, multi-tenant flex buildings near Pearson and retail strips in Streetsville. Office towers around Square One add VAV and BAS work.
Commercial-only HVAC and refrigeration for Toronto buildings: TSSA G1+G2, ESA and 313A licensed, 2-4 hour emergency response, written reports on every visit.
- 2-4 hour emergency response
- Crews staged off Highway 401 and 403
- 14-RTU program, $420K
20+
Years Commercial-Only
1,400+
RTUs Under Contract
85+
Chiller Plants on PM
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
Sound Familiar?
Rooftop Unit and Heating Trouble in Mississauga?
Heater lockouts in cross-dock warehouses beside Pearson
Unit heaters lock out on cold mornings, dock areas fall to single digits and forklift crews work in jackets.
Pearson moves roughly half of Canada's air cargo, and the Gateway warehouses around it keep dock doors open for long shifts. Suspended unit heaters and RTU heat sections cycle hard, and low-hung venting takes forklift hits.
Commercial heating repair covers venting, ignition and heat exchangers with combustion and CO testing, and RTU replacement plans handle units past end of life.
Downtime Costs Real Money
A warm walk-in or a tripped chiller turns into lost product, tenant calls and refunds within hours.
The Wrong Licences
Large gas appliances, refrigeration circuits and high-voltage controls need TSSA G1/G2, 313A and ESA tickets on one crew.
Repeat Visits, Same Fault
Parts-swapping without a root cause means the same unit fails again next month.
No Paper Trail
Insurers, boards and landlords want written findings, readings and photos, not a verbal "it is old".
Local Knowledge
Commercial HVAC Know-How From Square One to Meadowvale
Mississauga runs on rooftop units. The industrial parks along Dixie Road and Mavis Road, the flex buildings around Pearson and Airport Road, and the plazas in Streetsville and Meadowvale Business Park carry thousands of packaged RTUs, many installed in the 1990s and 2000s and now at or past end of life.
That is why our work here leans toward RTU programs: audits, ranked replacement plans and Sunday crane days. Our 14-RTU industrial park program replaced 14 Carrier 48TC units for $420,000 in six weeks with zero tenant downtime.
The Gateway warehouses around Pearson, which handles roughly half of Canada's air cargo, keep dock doors open for long shifts, so unit heaters and RTU gas heat work harder than in most buildings. Around Square One, open since 1973 and soon on the Hurontario LRT, office towers add VAV, BAS and chiller work.
Districts We Cover
- Mississauga Executive Centre
- Square One office cluster
- Dixie-Mavis industrial
- Streetsville retail
- Pearson-area warehouses
Postal codes we cover: L5B, L4Z, L4W, L4X, L5C, L5M, L5N, L5P, L5S, L5T
Local Landmarks & Corridors
- Hurontario LRT
- Airport Road
- Meadowvale Business Park
- Highway 401
- Highway 403
- Square One
Highway 401 and 403 cross the city, with Airport Road serving the Pearson warehouse belt and the Hurontario LRT under construction through City Centre.
Top Services
What We Fix, Replace and Maintain
Heating repair for boilers, radiant heaters, RTU heat sections and MUA. $450-$4,500.
View serviceEnd-of-life replacement for 15+ year buildings with reserve-fund documentation per unit.
View serviceRepair for RTU gas heat sections, suspended unit heaters and industrial warm-air. $450-$3,500.
View servicePM contracts: quarterly, semi-annual or monthly, with a written condition report every visit.
View serviceCooling-side repair for RTUs, splits, VRF and chilled water fan coils. $450-$3,500.
View serviceBMS install, retrofit and programming for towers, institutions and industrial sites. $15K-$180K.
View serviceMUA repair, maintenance and replacement for kitchens, industrial and parking garages.
View service24-hour emergency dispatch across Toronto and the GTA with 2-4 hour response.
View serviceProcess
How a Service Call Works, Step by Step
- 01
Call or Request
Call (437) 524-2997 or send the building details. Dispatch confirms the arrival window and site access.
- 02
Diagnose
A licensed technician traces the root cause across electrical, airflow, combustion and refrigerant circuits.
- 03
Written Quote
Findings, photos and a fixed price before any work starts. No surprise line items.
- 04
Fix and Document
Most repairs close on the first visit from truck stock, followed by a written completion report.
RTU Down Near Pearson or Square One? We Dispatch 24/7
2-4 hour emergency response, 24 hours a day. $185 diagnostic with written findings, waived on approved repairs over $750, and a 90-day labour warranty on every repair.
Local Logistics
Reaching Sites Across the City Fast
Sites here sit along Highway 401 and Highway 403, which makes most of the city reachable inside our 2-4 hour emergency window even at rush hour. Crews heading to Pearson-area warehouses use Airport Road, and Square One office calls follow the Hurontario LRT corridor.
Industrial parks along Dixie and Mavis have wide roads and good crane access, so multi-unit RTU replacements are efficient here. We book road permits for lifts where streets are narrower, such as older parts of Streetsville.
Winter cold-snap calls for unit heaters and RTU gas heat cluster in the Pearson warehouse belt, and we stage heating parts in advance.
Building Types
Industrial Parks, Flex Buildings and Office Towers
Dixie-Mavis industrial. Single-storey buildings with banks of 7.5 to 25-ton RTUs, unit heaters and make-up air for production areas.
Pearson-area warehouses and Meadowvale Business Park. Large distribution buildings with radiant tube heaters, unit heaters and office RTUs. Venting damage from forklifts is a common heating issue.
Square One and Mississauga Executive Centre. Mid and high-rise offices with VAV, air handlers and BAS, where comfort tickets often trace back to failed VAV controllers.
Streetsville retail. Plazas with tenant RTUs where cost allocation matters as much as the repair.
Seasonal Pressure Points From Pearson to Square One
Late spring and summer bring RTU compressor and fan motor failures, and planned replacement crane days happen on spring and fall weekends. Winter brings unit heater lockouts and RTU gas heat failures in the warehouse belt, often from damaged venting and weak ignition parts.
Why Us
Why Property Teams Along the 401 and 403 Choose Us
- RTU programs with per-unit audits and ranked replacement plans
- Sunday crane days with zero tenant downtime
- Per-tenant cost allocation for plazas and flex buildings
- Unit heater and radiant heater repair for Pearson-area warehouses
- VAV and BAS work for Square One offices
- 2-4 hour emergency response along the 401 and 403
Local Track Record
Recent Projects in the Area
Mississauga Industrial Park 14-RTU Replacement Program
Fourteen ageing RTUs replaced building by building on Sunday crane days, with a recalculated load for each tenant space and zero tenant downtime across the six-week program.
Client Feedback
What Local Facility Teams Say
5-Star Commercial Satisfaction
"Comfort tickets on our west side dropped to almost zero after they rebuilt the failing VAV boxes and retuned the BAS schedules floor by floor."
Rajesh Iyer
Facilities Manager, Square One area office building
"Compressor went in the middle of a heatwave. They had the part on the truck and the store was cool again by late afternoon."
Brenda Holt
Owner, Streetsville retail storefront
"Six unit heaters were locking out every cold morning. They traced it to venting and ignition faults and documented every unit for our insurer."
Victor Almeida
Operations Manager, Pearson-area distribution warehouse
Straight Answers
Common Questions From Mississauga Facility Managers
How fast can you reach a site in Mississauga?
Crews staged off Highway 401 and 403 reach Dixie-Mavis, Pearson-area and Square One sites inside the 2-4 hour emergency window, day or night.
Do you replace multiple rooftop units across an industrial park?
Yes. Our 14-RTU industrial park program replaced 14 Carrier 48TC units for $420,000 in six weeks with zero tenant downtime. Programs above 4 units get 10-15% off.
Can you fix unit heaters in warehouses near Pearson?
Yes. Pearson handles roughly half of Canada's air cargo, and the Gateway warehouses around it run dock doors open for long shifts. That works suspended unit heaters and RTU heat sections hard, so we repair venting, ignition and heat exchangers with combustion and CO testing on every unit.
Do you work on office buildings around Square One?
Yes. VAV boxes, air handlers, chillers and BAS for City Centre and Executive Centre offices, where comfort tickets often trace back to failed VAV controllers.
What does RTU replacement cost in Mississauga?
Typically $18,000 to $95,000 per unit depending on tonnage, crane access and electrical scope, with a written per-unit quote before any crane is booked.
Can you split repair costs between plaza tenants in Streetsville?
Yes. We confirm responsibility per unit with the landlord and write the cost allocation before work starts.
Coverage Map
Where We Work in Mississauga
Nearby Areas
We Also Serve Nearby
Every district listed here is covered by the same licensed crews behind our commercial HVAC Toronto service, across 20+ GTA cities. See every location we serve.
24-Hour Commercial Emergency Dispatch
Get a Licensed Technician on Site in Mississauga
2-4 hour emergency response, 24 hours a day. TSSA G1+G2, ESA and 313A licensed technicians with written findings on every visit.
- TSSA G1+G2, ESA, 313A
- Written findings every visit
- 90-day / 2-year labour warranty