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Mississauga Service Area

Furnace Installation & HVAC Service in Mississauga

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Direct Air Systems installs and services Lennox furnaces, heat pumps, central air conditioners, and gas fireplaces across Mississauga — from Port Credit and Lakeview to Erin Mills, Meadowvale, Malton, and Streetsville. We are an authorized Lennox Premier Dealer with TSSA-licensed gas fitters and over 30 years of GTA installation experience. Bolton office: (905) 951-8080.

Furnace Installation in Mississauga

Furnace replacement is our most requested service in Mississauga. Most Mississauga homes — from older Port Credit semis to newer Erin Mills detached homes — need 60,000–100,000 BTU Lennox furnaces sized by Manual J calculation. We carry Lennox Merit ML196E (96% AFUE), Elite EL297V (97% AFUE, variable-speed), and Signature SLP99V (up to 99% AFUE, modulating). All installations include a TSSA permit, standard venting, and removal of your old furnace. See full

Lennox furnace installation details and our

furnace replacement cost guide.

For urgent furnace failures in Mississauga, see our

Mississauga furnace repair page — same-day service available during heating season.

Heat Pump Installation in Mississauga

Mississauga homes on Enbridge natural gas are ideal candidates for a

dual-fuel hybrid system — a Lennox cold-climate heat pump paired with a gas furnace backup. The heat pump handles 70–80% of annual heating hours efficiently; the furnace covers the coldest Mississauga days cost-effectively. We install Lennox SL25XPV and EL22XPV cold-climate heat pumps across Mississauga, sized by Manual J calculation. Ontario Home Renovation Savings (HRS) rebates may apply — we confirm eligibility at the free in-home assessment.

All HVAC Services in Mississauga

  • Furnace installation & replacement — Lennox Merit, Elite and Signature gas furnaces. Manual J sizing on every job.
  • Furnace repair — emergency same-day service across Mississauga. Common repairs: igniter, flame sensor, heat exchanger, blower motor.
  • Heat pump installation — Lennox and Mitsubishi cold-climate systems including dual-fuel hybrid configurations.
  • Air conditioner installation — Lennox central AC and Mitsubishi ductless mini-splits for Mississauga homes.
  • Annual maintenance — fall furnace tune-ups and spring AC start-ups to prevent mid-season breakdowns and preserve your Lennox warranty.
  • Gas fireplace installation — Napoleon, Marquis, and Regency gas fireplaces and inserts. See them live at our Markham showroom.

    • Why Mississauga Homeowners Choose Direct Air Systems

  • Authorized Lennox Premier Dealer — the highest tier of Lennox dealer certification. Factory-trained technicians, full manufacturer warranty, complete Lennox lineup.
  • TSSA-licensed gas fitters — all gas furnace and fireplace work is permitted and inspected to Ontario gas code. Required by law on every installation.
  • 30+ years serving the GTA — we have installed thousands of furnaces and HVAC systems across Mississauga and Peel Region since the 1990s.
  • Honest advice — we tell you if a repair is still reasonable before recommending replacement. We perform a full Manual J heat-loss calculation on every furnace installation; we never size by rule-of-thumb.
  • Free in-home assessments — written installed quote, Manual J sizing, rebate eligibility check. No obligation.

    • Mississauga Neighbourhoods We Serve

    We install and service furnaces and HVAC systems across all Mississauga communities: Port Credit, Lakeview, Lorne Park, Clarkson, Cooksville, Fairview, Erin Mills, Meadowvale, Malton, Streetsville, City Centre, Hurontario, Lisgar, Churchill Meadows, and East Credit.

    Is There a Furnace Rebate in Mississauga?

    No. There is currently no Ontario or federal rebate for gas furnace replacement. The Canada Greener Homes Grant closed in 2024 and Enbridge HER+ closed December 31, 2025. If you pair a new furnace with a qualifying Lennox heat pump (dual-fuel hybrid), the heat pump portion may qualify for the Ontario Home Renovation Savings program. See our

    Ontario heat pump rebates guide for current program details.

    Nearby Areas We Also Serve

    From Mississauga we also serve Brampton, Toronto, Vaughan, and all GTA service areas. Our Markham showroom at 162 Bullock Dr serves York Region.

    Ready to get started in Mississauga?

    Get a Free Quote(416) 268-1115