Recent Work
Real HVAC work from OLU project photos
These photos show actual heating, cooling, water-heater, and commercial HVAC work handled by OLU HVAC in Mississauga and the GTA.
Pick the service you need, fill out your info, and we'll take it from there. Fast response, clear communication, and upfront pricing before approved work begins.
Our technicians run a complete multi-point inspection on every maintenance visit, no corners cut, no items skipped.
A properly maintained HVAC system runs cleaner, lasts longer, and costs you less. The numbers speak for themselves.
Most HVAC emergencies don't happen overnight. They build quietly over months until the system gives out. usually on the coldest or hottest day of the year.
A dirty system can work harder than it needs to, especially during peak heating or cooling demand.
Cracked heat exchangers are invisible. Our inspection catches dangerous issues before they become a health risk.
Maintained systems last 5+ years longer. delaying a costly $5,000+ replacement for years.
Most manufacturers require documented annual maintenance. Skipping it can void your coverage entirely.
Catch small issues early. Consistent efficiency. No surprise repairs. Your system runs quietly and keeps your family comfortable season after season.
Dust buildup, worn parts, and undetected leaks quietly drain efficiency. until the system fails entirely, often when you need it most.
If your system doesn't pass our post-service performance check, we'll return at no charge until it does. That's the Olu HVAC promise.
Select one or more services below. Your selection will be carried into the inquiry form so we know exactly what to prepare for.
Have a question before you submit? Here are the ones we hear most. Can't find your answer. just call us directly.
Call (437) 999-4242Fill in your name, number, and what you're looking for. We'll call you back within the hour.
Your selected service will be included automatically.
Providing expert HVAC maintenance and service to homeowners across Mississauga and surrounding cities.
Submit your inquiry above or give us a call. we're always happy to help.
Recent Work
These photos show actual heating, cooling, water-heater, and commercial HVAC work handled by OLU HVAC in Mississauga and the GTA.
Real answers to questions Mississauga and GTA customers ask us most.
Once a year for the furnace and once a year for the AC. Booking both seasonal tune-ups together is the typical setup.
Yes. Annual maintenance keeps the system cleaner, catches common problems early, and helps you make repair decisions before peak-season breakdowns.
Seasonal tune-ups for furnace and AC, basic safety checks, and priority dispatch for emergencies. We tailor the plan to your equipment.
Yes. We can include water heater flush and humidifier service in the visit.