🍂 Furnace Winter Prep Scarborough · (416) 424-4328
How to Prepare Your Furnace for Winter in Ontario — 2026 Checklist
Ontario winters hit hard. A furnace breakdown at −20°C is a genuine emergency. Preparing your furnace in September/October costs a fraction of an emergency repair.
DIY Furnace Winter Prep Checklist
- ✅ Replace furnace filter (1″ filters every 30–60 days; 4″ media every 6–12 months)
- ✅ Switch thermostat to Heat mode — confirm it fires within 2 minutes
- ✅ Check all vents are open and unobstructed
- ✅ Visually inspect exhaust pipes for bird nests, ice dams, or cracks
- ✅ Test all carbon monoxide detectors (replace batteries)
- ✅ Check humidifier water panel (replace annually at season start)
Professional Furnace Winter Prep (Book September–October)
- 🔧 Inspect heat exchanger for cracks (carbon monoxide risk)
- 🔧 Clean flame sensor, burners, and blower wheel
- 🔧 Test igniter, pressure switches, gas valve
- 🔧 Combustion analysis to verify efficiency
Annual tune-up cost: $149–$199
How do I prepare my furnace for winter in Ontario?
To prepare your furnace for Ontario winter: replace filter, test thermostat in Heat mode, verify all vents are open, test CO detectors, inspect exhaust pipes. Schedule a professional annual tune-up ($149–$199) to inspect heat exchanger, clean burners, and verify gas pressure. Call Madina Mechanical at (416) 424-4328 to book fall furnace prep in Scarborough.
🔗 Furnace Repair Scarborough | HVAC Maintenance Toronto
Book Fall Furnace Prep: (416) 424-4328
