(437) 999-4242 Request Callback
Commercial HVAC Service

Commercial HVAC repair and rooftop unit service in Mississauga

Need a rooftop unit, commercial AC, or heating issue handled without dragging out downtime? Call OLU HVAC or send the short callback form.

★★★★★ Rated 5.0 on Google
Mississauga based Serving commercial sites across the GTA.
24/7 emergency line For active breakdowns and shutdowns.
Real project photos OLU work, not residential stock imagery.
  • Rooftop units, commercial cooling, commercial heating, and maintenance.
  • Offices, retail units, plazas, warehouses, and small commercial spaces.
  • Clear next steps after diagnosis, so you know whether to repair, maintain, or replace.
Call (437) 999-4242 Request a Callback
Commercial rooftop HVAC units serviced by OLU HVAC
Commercial rooftop condenser work from OLU HVAC project photos.

Get a Commercial HVAC Callback

Send the essentials. For active outages, call instead.

No obligation. OLU HVAC uses this only to contact you about the request.

Urgent? Call (437) 999-4242.

Commercial Coverage

Commercial HVAC service when downtime is the problem.

Business owners and property managers need fast clarity: what is wrong, what it takes to keep the building running, and whether repair, maintenance, or replacement makes the most sense.

Rooftop Units

Diagnostics, repairs, and maintenance for rooftop heating and cooling equipment.

Commercial Repairs

Response for offices, retail spaces, plazas, warehouses, and light commercial properties.

Preventive Maintenance

Scheduled service to reduce downtime, avoid emergency calls, and keep systems reliable.

Emergency HVAC

After-hours support for no cooling, no heat, active leaks, and equipment failures.

Commercial Work

Real commercial HVAC project photos from OLU.

Rooftop condensers, commercial ductwork, RTU diagnostics, and service work from OLU-owned project imagery.

Three commercial rooftop condensers serviced by OLU HVAC
Rooftop condenser work for a commercial building.
Commercial building exterior ductwork completed by OLU HVAC
Commercial exterior ductwork and rooftop connection work.
Commercial condenser diagnostic equipment on rooftop unit
Commercial cooling diagnostics and service setup.
Rooftop unit electrical and mechanical diagnostic work
RTU electrical and mechanical diagnostic work.
Commercial rooftop unit serviced in winter conditions
Rooftop unit service in winter conditions.
Commercial York rooftop HVAC unit serviced by OLU HVAC
Commercial RTU service and inspection.
Commercial building ductwork and ladder access for HVAC service
Commercial duct and rooftop access work.

Excellent on Google

★★★★★ 5.0 rating
Read Our Google Reviews
Olu HVAC Inc. is a Mississauga based HVAC company with a 5.0 Google rating. To read or leave a review, visit the Google Business Profile.

Need commercial HVAC help today?

Call for urgent service or request a callback for a quote, repair, or maintenance visit.

Call (437) 999-4242 Request a Callback
Call Now Callback