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

Boiler Installation

Modern condensing boilers, combi units, and full hydronic system installs, right-sized and cleanly plumbed.

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TSSA Licensed · HRAI · WSIB
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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
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About our boiler installation service

Simcoe County's older neighbourhoods are full of homes still heated by boilers, and that specialty knowledge is getting rare. Our senior technicians install modern condensing boilers from Viessmann, Navien, IBC, and Weil-McLain, plus combi-boiler upgrades that deliver heat and domestic hot water from one appliance.

Boilers are a minority system in Simcoe County, which is exactly why so many are installed badly. We see oversized cast-iron replacements dropped into century homes in downtown Barrie and older Oro-Medonte properties without anyone recalculating the radiator output. A condensing boiler only reaches its rated efficiency when return water stays low, so we redesign the loop and set outdoor reset curves for the local design temperature rather than leaving the factory default in place.

Rebates: qualifying equipment can draw Ontario incentives and federal financing, and we prepare the paperwork with your quote. See current Ontario HVAC rebates.

What's included

  • Cast-iron, condensing, and combi boilers
  • Radiator, baseboard, and in-floor systems
  • Combi-boiler upgrades for heat + hot water in one unit
  • Permitted, inspected, and commissioned to spec

How the visit works

  1. 1
    System assessment
    We map your loops, zones, and controls before quoting any work.
  2. 2
    Written proposal
    Right-sized equipment, itemized pricing, and rebate eligibility all in one document.
  3. 3
    Permitted install
    New boilers are permitted, inspected, and commissioned to manufacturer spec.

Where we provide boiler installation

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.