High-efficiency gas furnace beside a water heater in a clean basement mechanical room

Furnace Replacement

Up to 98% efficient. Quiet enough to forget.

The right size, installed once.

A new high-efficiency furnace turns almost every dollar of gas into heat. We size it to your home, clean up the venting, and leave the mechanical room tidier than we found it.

AFUE on modulating models: 98%
typical install: 1day
parts and labour warranty: 10yr

When it is time

Your furnace is 18 years or older

Most last 15 to 20 years. Planning ahead beats a January emergency.
Uneven rooms

A two-stage or modulating furnace evens out hot and cold spots.
Repairs every winter

When repairs pass half the price of a new one, it is time.
Yellow flame or soot

Turn it off and call. These can be signs of a combustion problem.

Close-up of blue gas burner flames inside a furnace

Every install includes

Heat loss calculation for correct sizing
Gas permit and safety inspection
Old furnace removed and recycled
First fall tune-up free

Get a quote

Prices

Typical ranges in Ottawa, before HST. Your exact price is agreed in writing before any work starts.

All prices

$4,800–$6,800

96% AFUE single-stage furnace

Removal, venting and permit included
$7,000–$10,500

97 to 98% AFUE modulating, variable-speed

Quietest and most even heat
$300–$900

Venting updates

When the old chimney or vent cannot be reused
$450–$900

Whole-home humidifier

Added during the install
Spread the cost

Financing from 12 to 120 months, on approved credit.
Estimate a payment

Specs

Efficiency: 96% to 98% AFUE
Blower: Variable-speed ECM on upgrade models
Stages: Single-stage, two-stage or modulating
Warranty: 10 years parts and labour, registered for you

Questions

How much does a new furnace cost in Ottawa?

Most of our furnace replacements land between $4,800 and $10,500 plus HST, depending on efficiency and venting. The quote shows three options with the full price on each.

Can you replace it in winter?

Yes. Most swaps take one day, and we can leave portable heaters if the job runs past dark.

Should I pair it with a heat pump?

A furnace plus a cold-climate heat pump (a hybrid system) lets the heat pump do most of the work and the furnace handle the coldest nights. We price both on every quote.