Best Furnace Contractors in Ajax, ON
1 furnace contractors found in Ajax
Ronjon Contracting Inc
Ajax, ON
Ratings aggregated by AI and may contain inaccuracies.
How much does furnace cost in Ajax?
Most Canadian homeowners spend $4,000-$7,000 to replace one major HVAC system - a high-efficiency gas furnace or a central air conditioner, installed. A simple like-for-like swap can start near $3,000, while premium modulating equipment or a large home pushes past $9,000. Whole-home cold-climate heat pumps and combined furnace-plus-AC projects run $8,000-$16,000 or more before rebates, and repairs, tune-ups and service calls are far cheaper at roughly $150-$1,500.
In Ajax, ON, typical quotes tend to track the Canadian average, so the table below shows these national figures unchanged.
What moves the price: The low end is a tune-up, service call or simple like-for-like swap; the top end is premium equipment, new ductwork, or a whole-home cold-climate heat pump.
| Project | Typical cost in Ajax |
|---|---|
| High-efficiency gas furnace replacement (installed) | $4,000-$7,000 $3,000 to $9,000+ per project |
| Central air conditioner installation (replacement) | $4,000-$7,000 $3,500 to $9,500+ per project |
| Ductless mini-split heat pump - single zone (installed) | $4,000-$6,000 $3,000 to $7,000 per zone/indoor unit |
| Whole-home cold-climate air-source heat pump (ducted or multi-zone) | $8,000-$16,000 $6,000 to $22,000 per project (before rebates) |
| New or full-replacement ductwork (whole home) | $4,500-$7,500 $2,500 to $12,000 per project |
| Ductwork runs added or replaced (per length) | $25-$45 $15 to $60 per linear foot |
| Furnace or AC repair (part plus labour) | $200-$600 $150 to $1,500+ per repair |
| Furnace or AC tune-up / annual maintenance | $120-$250 $100 to $300 per visit |
What changes the price of furnace in Ajax
- Whether the infrastructure already exists - adding AC or a furnace where there was none (new wiring, refrigerant lines, or ductwork) costs thousands more than a straight like-for-like swap.
- Ductwork condition - old, leaky, or undersized ducts may need sealing, resizing, or replacement, which adds to the total.
- Location, season, and rebates - big cities and remote/rural areas both raise prices, and peak summer (AC) or deep winter (furnace) demand lifts quotes; on the flip side, federal and provincial rebates - especially for heat pumps - can cut net cost significantly.
- Equipment efficiency and tier - a basic single-stage furnace or AC costs far less than a high-efficiency modulating or variable-speed model; stepping up to a premium unit can add $1,000-$3,000.
- System size (BTUs / tonnage) - bigger homes need more heating and cooling capacity, so a 4-5 ton AC or large furnace costs more than a 2-ton or small unit.
- Labour and install complexity - labour is 40-60% of a typical install; tight access, long refrigerant line sets, electrical upgrades, or converting from one fuel type to another all push the price up.
How furnace prices vary across Canada
Expensive metros cost more, and the difference is driven mostly by labour - HVAC labour is 40-60% of an install and runs about $80-$150/hr, at the top end in Toronto and Vancouver. A furnace tune-up that is roughly $120 in a mid-size Prairie city is $180-$220 for the same scope in Toronto or Vancouver. Big-city equipment prices are actually competitive because there are lots of contractors bidding; it is the labour-heavy portion of the bill that inflates.
These are typical Ajax-area price ranges based on 2026 Canadian market data, not quotes. Your actual cost depends on the size and details of your project. Post your project on Bidmii to get free quotes from the 1 furnace contractor listed in Ajax above.
Frequently Asked Questions about Furnace in Ajax
How much does furnace cost in Ajax?
The cost of furnace services in Ajax, ON varies depending on the scope of work. Post your project on Bidmii to receive free, competitive quotes from local professionals.
How do I find a licensed furnace contractor in Ajax?
Browse our directory of furnace contractors in Ajax above. Look for contractors with the Verified badge, which means their identity has been confirmed. You can also check ratings aggregated from multiple platforms.
How many furnace contractors are in Ajax?
Bidmii currently lists 1 furnace contractor in Ajax, ON. Our directory is growing — create a free listing if you're a contractor.
How much does it cost to replace a furnace in Canada?
Most homeowners pay about $4,000-$7,000 installed for a high-efficiency gas furnace. Simple like-for-like swaps can be closer to $3,000, while large homes, premium modulating models, or fuel conversions can push the total past $9,000.
Is a heat pump worth it, and what does it cost?
A ductless single-zone heat pump runs roughly $3,000-$6,000 installed, and a whole-home cold-climate system is typically $8,000-$16,000 or more. Federal and provincial rebates can offset thousands - sometimes cutting the net cost close to half - and because a heat pump both heats and cools, it can lower your year-round energy bills.
How much is an HVAC service call or repair?
Expect a diagnostic or service-call fee of about $100-$150, which is often credited toward the repair if you go ahead. Common fixes like an ignitor or flame sensor run $150-$300, while major parts such as a heat exchanger or AC compressor can reach $1,000-$1,500 or more.