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Heating · Authorized Lennox Dealer · Manual J Sizing
Furnace Installation, Repair & Maintenance — GTA & Durham
Properly sized, professionally installed Lennox furnaces — and fast, root-cause repair for all brands when they fail. No guesswork. No oversizing. Just honest service from a former Lennox Technical Representative.
✓ TSSA Certified
✓ Authorized Lennox Dealer
✓ Authorized Rinnai Dealer
✓ Since 1995
High-Efficiency Furnace Installation & Repair in the GTA
A properly sized furnace is one of the most impactful home improvements an Ontario homeowner can make. Modern high-efficiency furnaces (96–99% AFUE) reduce heating costs by 20–40% compared to late-1990s equipment — while delivering quieter operation and more even temperatures.
Lennox Furnace Options
Lennox ML196E — Reliable Entry-Level
Merit Series · 96% AFUE · Single-Stage
Straightforward, proven, and cost-effective for budget-conscious replacements. A strong upgrade over any pre-2000 furnace.
Lennox EL296V — Best Value in Performance
Elite Series · 96% AFUE · Two-Stage
Runs at low fire (~65% capacity) most of the time — quieter, better humidity control, more even temperatures. The right choice for most GTA homeowners.
Lennox SLP99V — Quietest, Most Efficient
Signature Series · 99% AFUE · Variable-Capacity
Modulating gas valve adjusts output in tiny increments. Near-silent, temperature within 0.5°C of setpoint, lowest possible gas consumption.
We also install Carrier, Goodman, and other leading brands where they better fit a customer's needs. Our recommendation is always based on fit, not margin.
Our Process
Free estimate & Manual J
We measure and assess your home before recommending any product — insulation, windows, ductwork, climate zone.
Transparent itemized quote
Multiple efficiency tiers with honest payback analysis. No pressure to choose the most expensive option.
Safe removal & installation
Old furnace safely removed. New unit installed to Lennox spec and Ontario gas code. TSSA permit obtained.
Commissioning & warranty
Combustion analysis, safety control testing, thermostat calibration, and full Lennox warranty registration.
Pricing & Financing
Furnace installation: $3,200–$7,500+ installed. No-money-down financing from $39/month OAC. High-efficiency installation may qualify for Enbridge Home Efficiency Rebates.
Why Choose Malek
Expert Furnace Service You Can Trust
Manual J Every Time
We calculate the correct size for your home — eliminating the oversizing problem that causes short-cycling and premature wear.
TSSA Permit & Inspection
All Ontario gas installations require TSSA permits. We handle the application and inspection — every time, no exceptions.
Same-Day Repair Available
No-heat calls prioritized. We carry common furnace parts for single-visit repairs wherever possible.
All Brands Diagnosed
Lennox is our specialty, but we repair Carrier, Trane, Goodman, Bryant, York, Rheem, and all other major brands.
Related Services
Everything Under One Roof
Common Questions
Frequently Asked Questions
How much does furnace installation cost in Ontario?
$3,200–$7,500+ installed, depending on efficiency tier, brand, and complexity. A Lennox Elite 96% two-stage runs approximately $4,200–$5,500 in a typical GTA home. We provide itemized quotes with no hidden fees.
What AFUE rating do I need in Ontario?
We recommend a minimum of 96% AFUE for all Ontario homes. The efficiency gain over 80% units pays back in 4–7 years at current gas rates. For newer, well-insulated homes, the 99% Signature Series offers the best long-term economics.
How long does furnace installation take?
4–6 hours for a standard replacement. Ductwork modifications or new venting may add time. We give you a realistic timeline when we quote.
Should I repair or replace my furnace?
Furnace under 12 years old + repair under $700 → usually repair. Furnace 15+ years old + major repair (heat exchanger, control board) → usually replace. We present both options with honest payback analysis.
Do you handle TSSA permits?
Yes — every time. Ontario law requires a TSSA permit for gas appliance installation. We apply for the permit and arrange the inspection as part of every job.
Ready to Replace Your Furnace?
Free in-home estimate with Manual J load calculation. Lennox authorized dealer. No-money-down financing available OAC.
Or call 416-881-2720 — Mon–Fri 8am–6pm, Sat 9am–4pm
Get Your Free Estimate!
No pressure, no obligation. We respond same day.