Heating

Furnace Installation & Replacement

High-efficiency furnaces installed right

Replacing a furnace is one of the bigger decisions a Halton Hills homeowner makes — usually 12 to 20 years between replacements, $4,500–$9,000 invested, and a piece of equipment your family relies on through every Ontario winter. We treat it that way. No hard sell on the most expensive unit, no guesswork on sizing, no skipped steps on the install.

Our process starts with an actual heat-loss calculation (Manual J) on your home — not a back-of-the-envelope guess based on square footage. Most furnaces in Halton Hills homes are oversized by 20–40%, which is the leading cause of short-cycling, premature wear, and uneven heating. Right-sizing is the single most impactful decision in a furnace install, and almost no one does it.

When it makes sense to replace

Furnace replacement decisions usually come down to one of these scenarios:

  • Your furnace is 15+ years old and a major component has failed (heat exchanger crack, control board, gas valve). Repair-vs-replace math usually tips toward replacement.
  • Cracked heat exchanger. Non-negotiable replacement — a cracked heat exchanger is a carbon monoxide hazard.
  • Your furnace is mid-efficiency (80% AFUE) and natural gas bills are climbing. A 96%+ AFUE replacement can cut your gas bill by 15–20% and qualify for $500–$1,500 in rebate stacking.
  • You're considering a heat pump conversion. Hybrid systems (heat pump + gas furnace backup) qualify for the full Ontario rebate while keeping winter reliability — see our heat pump installation page.
  • The furnace is short-cycling, uneven heating, or noisy despite multiple repairs. Often a sign of an oversized or improperly-installed unit. Replacement with a properly-sized unit solves these.
  • You want longer warranty coverage and modern safety features — current furnaces have variable-speed blowers, better filtration integration, and longer parts/labour warranties than 90s/2000s units.

How a furnace installation goes with us

  1. 01

    In-home consultation

    We come to your home, take measurements, look at your existing ductwork and venting, do a Manual J heat-loss calculation, and ask about comfort issues you've noticed (cold rooms, dry air, noise). Usually 60–90 minutes. No charge, no obligation.

  2. 02

    Honest options proposal

    We present 2–3 options at different efficiency tiers (e.g., 80% AFUE budget tier, 96% AFUE high-efficiency, 98% AFUE premium with variable-speed). Each has clear pricing, clear rebate eligibility, and the long-term operating cost math. We don't push the most expensive one.

  3. 03

    Rebate paperwork

    Once you've chosen, we handle every rebate application — Ontario HRS program, federal Greener Homes Loan if applicable, OHPA for oil-to-heat-pump conversions, local utility incentives. You don't need to navigate forms.

  4. 04

    Installation day

    Most furnace replacements are completed in 6–10 hours. We protect your floors, remove the old unit cleanly, install the new furnace with proper venting, electrical, and gas connections, commission the system, and walk you through the new thermostat and any controls. You have heat the same day.

  5. 05

    Permits & inspection

    We pull the Halton Hills building permit when required and coordinate the TSSA gas inspection. You don't deal with the paperwork.

  6. 06

    Follow-up

    We come back at 30 and 90 days to check the system, change the filter the first time, and answer any questions that come up. New equipment can have small adjustments needed once it's been running through a full heating cycle.

Furnace brands we install

We're a Lennox Premier Dealer (premium tier) and also install the major value and mid-tier brands. The right brand and tier depends on your home, budget, and how long you plan to stay:

LennoxCarrierTraneBryantGoodmanAmanaDaikinYorkNapoleon

What furnace installation costs in Halton Hills

Furnace installation in Halton Hills typically runs:

- 80% AFUE mid-efficiency furnace: $4,500–$5,800 installed (rare to recommend in 2026 — limited rebate eligibility)
- 96% AFUE high-efficiency furnace: $5,500–$7,500 installed, rebate-eligible
- 98% AFUE variable-speed premium furnace: $7,000–$9,500 installed, full rebate stack eligible
- Hybrid heat pump + gas furnace system: $11,000–$16,000 installed, with $4,000–$7,500 in combined rebates bringing net cost in line with a premium furnace alone

These ranges include the equipment, installation labour, venting modifications, and standard removal of the old unit. Big additions (full duct replacement, electrical panel upgrades, gas line modifications) are quoted separately if needed. We'll give you a fixed total before any work starts.

Frequently asked

Furnace Installation questions

Why does furnace sizing matter so much?

An oversized furnace short-cycles — heating the house in 5-minute bursts then shutting off, never running long enough to heat evenly or properly humidify. This wears parts out faster, costs more in gas, and creates uneven temperatures. An undersized furnace runs continuously in extreme cold and can't keep up. The right size, calculated from your home's actual heat loss, runs longer cycles at lower fan speeds, distributes heat evenly, and lasts longer. We do this math properly on every install.

What's AFUE and what tier should I pick?

AFUE (Annual Fuel Utilization Efficiency) is the percentage of gas that becomes useful heat in your home. An 80% AFUE furnace converts 80 cents of every dollar of gas to heat — the rest goes up the chimney. A 96% AFUE furnace captures 96 cents per dollar. For most Halton Hills homes with 8+ years to recoup the cost difference, 96–98% AFUE is the right call — and it's also where Ontario rebate eligibility lives. 80% AFUE units are mostly bought today for short-term ownership scenarios.

Should I be looking at a heat pump instead of a new furnace?

Maybe. Heat pumps have come a long way — modern cold-climate units work effectively at -25°C and below. The math depends on your home's insulation, your existing ductwork, electricity vs. gas pricing in your area, and whether you're willing to install a hybrid system (heat pump + gas furnace backup). Hybrid is the most common Halton Hills recommendation right now: full Ontario rebates apply, you keep gas heat for the coldest snaps, and you cut emissions and operating cost meaningfully. We'll lay out the heat-pump-vs-furnace math during our in-home consultation.

What rebates are available for a new furnace?

For high-efficiency furnaces (96%+ AFUE), Ontario's Home Renovation Savings (HRS) program offers $250–$1,500 depending on the equipment, smart thermostat included, and your existing heating source. For heat pump or hybrid heat-pump-plus-furnace installs, rebates increase substantially — combined federal and provincial stacking can hit $4,000–$7,500. Oil-heated homes converting to heat pump can access OHPA for an additional $5,000–$15,000 on top. We handle every form on every install.

How long does a furnace installation take?

Most straightforward replacements are 6–10 hours, completed in one day. You'll have heat by evening. More complex jobs — fuel conversions, hybrid heat pump installs, full duct modifications, multi-zone systems — can be 2–3 days. We give you a realistic timeline before booking.

Will I need a permit?

Yes — all furnace installations in Halton Hills require a Halton Hills building permit and a TSSA gas inspection. We handle both. You don't need to call the town or the inspector; we coordinate it.

What warranty comes with a new furnace?

Manufacturer warranties on residential furnaces are typically 10 years on parts (heat exchanger often 20 years or lifetime). We back our installation labour for 1 year as standard, with extended labour warranties available on premium installs. We register every install with the manufacturer the day it's commissioned so the warranty starts on day one — some installers skip this step and homeowners lose months of coverage.

Do you finance furnace replacements?

Yes. We work with SNAP Financial, which offers 0% promotional financing on qualifying installs and longer-term plans for premium and hybrid systems. The Canada Greener Homes Loan also offers up to $40,000 interest-free for energy retrofits including furnace upgrades that qualify. We can walk you through the financing options during the consultation.

Ready to book furnace installation?

Call us or submit a quick request. We'll get back to you within an hour during working hours.

Mon–Fri 7:00 AM – 7:00 PM · Saturday 8:00 AM – 5:00 PM · 24/7 emergency service available