District Air Systems Inc., HVAC contractor in Innisfil and Simcoe County
Heating Services

Furnace Tune-Ups & Safety Checks

A 21-point precision tune-up that keeps your furnace safe, efficient, and covered under warranty.

5.0 on Google
TSSA Licensed · HRAI · WSIB
Same-Day Response Guaranteed

Get Your Free HVAC Quote

Step 1 / 4
What do you need help with?
TSSA #000290047
Gas Technician Licensed
HRAI Member
Heating, Refrigeration & AC Institute
WSIB Covered
Workplace Safety Insured
Up to $7,500 in Rebates
Ontario program terms apply
5.0 ★ Google
Verified reviews

About our furnace tune-up & maintenance service

Most manufacturers require annual maintenance to keep the parts warranty valid. Our 21-point tune-up covers combustion analysis, gas pressure, blower amp draw, safety controls, and a full carbon monoxide check, documented in a written report you can keep.

A tune-up in this region is mostly about combustion and venting, not dusting. We check draft on side-wall vents, which matters more in Innisfil and Lefroy than most places because snow drifting off open fields regularly buries a termination overnight. We also test the heat exchanger on every visit; the twenty-plus-year-old units still running in Sandy Cove Acres and around Cookstown are the ones where a hairline crack turns into a carbon monoxide problem. Booked before October, most tune-ups take under an hour.

What's included

  • 21-point inspection with written report
  • Combustion & CO safety verification
  • Keeps manufacturer warranty in force
  • Priority scheduling for Comfort Club members

How the visit works

  1. 1
    Safety first
    CO test, gas leak check, and heat exchanger inspection before anything else.
  2. 2
    Clean and calibrate
    Burners, flame sensor, blower, and igniter cleaned; gas pressure verified to spec.
  3. 3
    Documented report
    You receive a photo-documented report of every reading and any recommendations.
Good to know: Comfort Club members receive tune-ups included plus 15% off all repairs.

Where we provide furnace tune-up & maintenance

Innisfil is home base, and our trucks run the same routes daily across Simcoe County and north York Region.

  • Barrie In Barrie the calls concentrate in the south end, where Painswick, Ardagh and Holly subdivisions are running the original builder furnaces past their fifteenth winter.
  • Bradford West Gwillimbury Bradford and Bond Head homes back onto the Holland Marsh, and the damp cold there is unforgiving on a system that was never balanced for the ductwork it feeds.
  • Essa Angus, Baxter and the CFB Borden housing sit on open ground where wind-driven snow buries side-wall vents, which is the single most common cause of a no-heat lockout out there.
  • East Gwillimbury Holland Landing, Sharon and Queensville have grown fast, so most of what we service there is newer high-efficiency equipment needing commissioning corrections rather than replacement.
  • Springwater Midhurst, Elmvale and the Snow Valley custom builds are in the snowbelt, where a heating system has to hold a design temperature several degrees colder than Barrie's.
  • Newmarket Newmarket's older Gorham and Glenway neighbourhoods still hold plenty of mid-efficiency equipment that is cheaper to replace than to keep feeding gas.
  • Oro-Medonte Many Oro-Medonte and Horseshoe Valley properties are off the gas main entirely, so heating decisions there weigh propane cost against a heat pump conversion.
  • New Tecumseth Alliston, Beeton and Tottenham see steady demand around the Honda plant shift schedule, and we book those calls early morning or evening to suit it.

Need service today? We can be there.

Same-day appointments across Innisfil, Barrie, and Simcoe County, with live dispatch 24/7.