Furnace Maintenance Ontario
Stay warm, safe, and energy-efficient all winter long. Ontario Air Services provides thorough, certified furnace maintenance designed specifically for Ontario homes and weather. Our licensed HVAC technicians ensure your furnace runs safely and efficiently — preventing costly breakdowns and keeping your family comfortable all season.
- TSSA-licensed, certified HVAC technicians
- Thorough multi-point furnace tune-up & safety inspection
- Manufacturer warranty protection through documented service
- Combustion analysis, CO testing & heat-exchanger check
- Flexible scheduling — including evenings and weekends

Our process
What to expect
- 1
Licensed, TSSA-Certified HVAC Professionals
Our technicians are fully licensed and certified by the Technical Standards and Safety Authority, ensuring every furnace service meets Ontario's strict safety and performance standards.
- 2
Fast, Reliable Service with Flexible Scheduling
We offer prompt appointments and responsive emergency service to fit your schedule and keep your home comfortable when you need it most.
- 3
Experience with All Major Furnace Brands and Models
Our team is trained to service and repair every leading furnace brand, ensuring expert care no matter what system you have.
- 4
Honest, Transparent Pricing
Upfront, flat-rate pricing on every maintenance visit — no surprises, no upsells. Just thorough work documented with photos and readings.
Between tune-ups
Easy Maintenance Tips Between Tune-Ups
Replace or Clean Your Air Filter Regularly
A dirty air filter restricts airflow, forcing your furnace to work harder and use more energy. Check and replace filters every two to three months to maintain strong airflow and consistent heat.
Keep Vents and Registers Clean and Unobstructed
Blocked vents make your furnace overwork and create uneven heating. Make sure furniture, rugs, or curtains aren't covering any vents, and dust them regularly for better air circulation.
Listen for Unusual Sounds or Vibrations
Grinding, rattling, or buzzing noises may indicate loose parts or early mechanical issues. Catching these signs early helps prevent bigger, more expensive problems later.
When to schedule
When to Schedule Furnace Maintenance
The best time to schedule furnace maintenance in Ontario is early fall, before the cold weather begins. You should also book a tune-up if you notice any of these signs:
- Strange noises, rattling, or grinding
- Unusual smells or burning odours
- Weak airflow or uneven heating
- Higher utility bills than usual
FAQ
Common questions
How often should I service my furnace in Ontario?
We recommend professional furnace maintenance once a year, ideally in early fall before the heating season begins. Annual service keeps efficiency high and is required by most manufacturer warranties.
What's included in a furnace maintenance visit?
A full multi-point tune-up: combustion analysis, heat-exchanger and CO safety check, burner cleaning, sensor polish, blower inspection, gas pressure adjustment, thermostat calibration, and a written report with photos.
Will maintenance really save me money?
Yes. Well-maintained furnaces run more efficiently (lower bills), break down less often, and last 5–8 years longer on average than neglected systems.
Do you service all furnace brands?
Yes. Our team is trained on every major furnace brand sold in Ontario — Lennox, Carrier, Trane, Goodman, Rheem, and more.
Do you offer emergency furnace service?
Yes — we offer fast emergency response and flexible scheduling, including evenings and weekends, so you're never left without heat in the middle of winter.
Get started
Request furnace maintenance
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