Pre-rendered concept — your spec is built on your actual room during the free site visit.
Heating & Cooling · Calgary
Furnace Replacement
CA$5,900 – CA$6,726
Benchmark range for your current selection · confirmed with a free site visit
Size
Finish tier
- ✓ 2-year workmanship warranty from BuildRenovate directly
- ✓ Itemized estimate within 24 hours of submitting
- ✓ No payment now — ordering starts your quote, not an invoice
- ✓ BuildRenovate is your general contractor; our subcontractors work under us
- ✓ Typical timeline: 1 week
- ✓ A City of Calgary mechanical permit and inspection is required for furnace replacement and is a visible line in your spec.
About this project
Full replacement of a gas furnace in a Calgary home: removal and disposal of the old unit, new high-efficiency furnace sized to your square footage, venting, gas and electrical connections, thermostat, City of Calgary permit and inspection. Priced by home size and by how hard the furnace works, not by how cold it is the week you call.
Where the money goes
Calgary benchmark ranges — your signed spec shows your exact numbers on these same lines.
| Line item | Calgary range |
|---|---|
| Furnace unit (by stage & capacity) | $2,900–$7,400 |
| Removal & disposal of old furnace | $250–$450 |
| Venting & gas fitting | $450–$1,100 |
| Electrical & thermostat | $300–$750 |
| Sheet metal / plenum transitions | $350–$1,200 |
| Labour & commissioning | $900–$1,600 |
| Permit & inspection | $180–$320 |
Questions homeowners ask
How much does a new furnace cost in Calgary?
A new high-efficiency furnace installed in Calgary costs $5,900–$8,200 for most homes in 2026. Single-stage 96% units start at $5,900 in our store; two-stage runs about $7,300–$9,400 and fully modulating units $10,100–$12,500 depending on home size.
How long does a furnace replacement take?
A straight swap takes one day — usually 4–6 hours. If venting has to be rerouted or the plenum rebuilt, allow a second day. You are not without heat overnight.
When should I replace rather than repair?
Past 15 years, or when a single repair passes roughly a third of replacement cost, replacement is usually the better spend — especially in Calgary, where an old 80% furnace burns roughly 20 cents of every heating dollar up the vent.
Do I need a permit?
Yes. Calgary requires a mechanical permit and a post-installation inspection for furnace replacement. It is included in your price and shown as its own line, typically $180–$320.
Want the full cost breakdown? Read the Heating & Cooling cost guide for Calgary.
What Calgary homeowners said
Every review comes from a homeowner whose project we finished. We publish them after checking they're genuine — including the ones that aren't flattering.
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