Furnace/HVAC Replacement Cost in London (2026)
Average cost in London
$5,500 — $12,000
$4 — $8 per sq ft
Cost Breakdown
ItemizedFurnace, AC unit, thermostat, and materials
55%
Licensed HVAC technician installation
35%
Sheet metal, venting, and gas line adjustments
5%
TSSA compliance, permits, and old unit removal
5%
HST at 13%
📋What's Included
ScopeTypically Includes
- Furnace or AC unit
- Thermostat
- Basic ductwork connections
- Refrigerant
- Labor & installation
- Old unit disposal
Typically Excludes
- Full ductwork replacement
- Zoning systems
- Smart home integration
- Permits & inspections
- Humidifier or air purifier
Based on a standard 2,000 sq ft home with existing ductwork.
🧮Estimate Your Cost
InteractiveEstimated Cost
$5,530 — $8,296
Based on 8 sources and market data for London. Actual costs may vary depending on specific project requirements.
🏢Top HVAC Replace Contractors in London
Verified providersHawana HVAC Solutions Furnace Repair London ON
670 Millbank Dr, London, ON N6E 1S2, Canada
139 reviews
Maxcare Heating And Cooling
1994 Clayridge Wy, London, ON N6G 0V2, Canada
265 reviews
Builders Choice Air Systems Ltd
492 Hill St, London, ON N6B 1E7, Canada
229 reviews
Donaldson Home Services
77 Bessemer Rd, London, ON N6E 1P9, Canada
2,809 reviews
Provider data sourced from public business directories. Ratings and reviews are public and may change. LookupCost is not affiliated with listed providers.
💬What People Actually Paid
Community❓Common Questions
On average, replacing both a furnace and central AC in London costs between $5,800 and $11,000, depending on the size of your home and the efficiency (SEER2/AFUE) ratings of the units.
A standard high-efficiency gas furnace replacement in London typically ranges from $3,400 to $7,500, with premium modulating models costing up to $8,500 including installation.
Yes, London homeowners can access up to $7,100 in combined rebates through programs like the Canada Greener Homes Grant and Enbridge Home Efficiency Rebate+ when upgrading to qualifying high-efficiency systems or cold-climate heat pumps.
Labor for a standard HVAC installation typically adds $1,000 to $3,500 to the total project cost, with hourly rates for licensed HVAC technicians in Southwestern Ontario averaging $100 to $150.
📊Our Methodology
How we collect dataAggregated from 8+ verified web sources and cost databases
Licensed contractor estimates and regional cost guides
Government construction and labor statistics
Community-reported project costs and reviews
Last data collection: today. Updates run weekly. All costs in CAD.