Lennox dealer · Cobourg since 2005
Furnace Maintenance and Tune-Ups in Cobourg
A yearly tune-up keeps your furnace safe, efficient and covered by its warranty, and catches small problems before they leave you without heat.
Serving Cobourg, Port Hope, Northumberland, Quinte and Peterborough. Office 9 am to 5 pm, 7 days. Emergency service 24/7.
Book a furnace tune-up
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From 895 reviews by local homeowners.
Local since 2005
Showroom and service team on Brook Road North, Cobourg.
Written guarantees
On every installation. See them.
$1,000 Off a New Lennox Furnace
Get your home ready for winter. Save $1,000 on a qualifying new Lennox furnace, installed by our local Cobourg team. Offer ends December 1, 2026.
Why yearly maintenance matters
Safety
We check for cracked heat exchangers, gas leaks and carbon monoxide risks.
Efficiency
A clean, tuned furnace uses less fuel and heats more evenly.
Fewer breakdowns
Most no-heat calls start as small problems a tune-up would catch.
Warranty protection
Most manufacturers require yearly professional maintenance to keep parts warranties valid.
Longer life
Well-maintained furnaces commonly last years longer.
Cleaner air
Clean burners, blower and filter mean less dust moving through your home.
What our furnace tune-up includes
- Inspect the heat exchanger for cracks and corrosion
- Clean and check burners, igniter and flame sensor
- Test gas pressure and combustion for safe, efficient burning
- Check venting and the condensate drain on high-efficiency furnaces
- Inspect and clean the blower, check motor and capacitor
- Test safety controls, limit switches and the pressure switch
- Check the thermostat and calibrate if needed
- Inspect the filter and talk through filtration upgrades
- Written summary of anything that needs attention
When to book
Early fall is the best time, before the first cold snap and the busiest weeks of the season. If you missed fall, book now. A tune-up any time is better than none. Pair it with our fall maintenance checklist.
Upgrade your filter while we are there
Still using a thin 1-inch filter? A Lennox media air cleaner replaces the filter slot with a deep MERV 11 to MERV 16 filter that lasts up to 12 months. See air filtration options.
Pay Monthly Using NGL
Spread the cost of a new furnace, heat pump, air conditioner or water heater into one monthly payment, with parts, labour and repairs covered for the term.
Frequently asked questions
How often should my furnace be serviced?
Once a year, ideally in early fall before heating season starts.
How long does a tune-up take?
Most tune-ups take about an hour, longer if we find something that needs attention.
Do new furnaces need maintenance?
Yes. Most manufacturers require yearly professional maintenance to keep the parts warranty valid, even on brand new furnaces.
Can I maintain my furnace myself?
Homeowners should check the filter regularly and keep vents clear, but safety tests like combustion and heat exchanger checks need a licensed technician.
Do you service AC at the same time?
We can. Many homeowners book a spring AC tune-up and a fall furnace tune-up so both systems are checked before their season.
Related services
AC maintenance
Spring tune-ups for your air conditioner.
Furnace repair
Repairs on all makes and models.
Air filtration
Lennox media air cleaners, HEPA and UV lights.
Book your furnace tune-up
Call us or book online and we will confirm within 24 hours. Office hours 9 am to 5 pm, 7 days a week, with emergency service 24/7.