HVAC · Cambridge
Furnace Installation in Cambridge
High-efficiency furnace installation and replacement across Cambridge — sized by heat-loss calculation for your actual house, whether that's a drafty Galt century home or a 2008 Hespeler two-storey.
Most Cambridge furnace quotes go wrong the same way: the installer reads the nameplate on the old unit and sells the same size again. In Galt's older housing stock that old unit was often oversized to begin with; in Hespeler's late-2000s subdivisions the builder-grade furnace was chosen on price and frequently mismatched to the home. We run a proper heat-loss calculation on every install, so the new furnace runs longer, quieter cycles, keeps rooms even, and doesn't short-cycle itself to an early death.
What Cambridge homes need from a furnace install
Galt century homes. Thick brick walls, original chases, and retrofit ductwork mean venting and return-air design matter more than the furnace brand. We route high-efficiency PVC venting properly through masonry, correct starved returns, and where a boiler still heats the house, we can quote a boiler replacement or a full conversion to forced air.
Hespeler and east-side subdivisions. The original builder furnaces installed off Townline Road and Guelph Avenue in the mid-to-late 2000s are now 12–15 years old and failing in a predictable pattern — cracked secondary heat exchangers, failed ECM blower modules, rusted-out condensate handling. A planned replacement costs meaningfully less than an emergency one in a January cold snap, and lets you take time on efficiency and rebate options.
Preston and everywhere in between. Solid mid-century homes usually just need honest sizing, a hard look at the ductwork, and a clean install.
What's included
- Heat-loss calculation and room-by-room sizing
- 96%+ AFUE two-stage and modulating furnace options, clearly priced
- Old-unit removal and disposal
- Venting, gas-line, and condensate updates to code, with permits where required
- Enbridge rebate guidance — including hybrid furnace + heat pump setups that qualify in 2026
What it costs
Typical Cambridge furnace replacements run $4,500–$8,500 installed depending on size, staging, and how much venting or duct correction the house needs. You get a written, itemized quote before we start — see the full breakdown in our 2026 furnace replacement cost guide for Cambridge.
Our process
- Assess & size — heat-loss calculation, duct and venting inspection.
- Quote options — two or three efficiency tiers with rebate math, in writing.
- Install — licensed gas techs, floor protection, old unit hauled away.
- Commission — combustion analysis, airflow balancing, and a walkthrough of your new thermostat.
Frequently asked questions
What size furnace does my Cambridge home need?
It depends on heat loss, not square footage alone. A leaky Galt century home and a tight Hespeler build of the same size can need very different furnaces. We calculate it rather than guess — oversizing causes short-cycling, uneven rooms, and early failure.
My builder furnace is 14 years old but still runs. Should I wait for it to die?
If it's a late-2000s builder-grade unit, it's in the failure window. Replacing on your schedule means better pricing, time to consider a heat pump hybrid for Enbridge rebates, and no emergency premium. We'll give you an honest read on remaining life during a tune-up.
Do you handle boiler-to-forced-air conversions in Galt?
Yes. Where ductwork is practical we quote full conversions; where it isn't, a new high-efficiency boiler or ductless heat pumps for cooling are often the smarter path. We'll show you both options.
What efficiency furnace should I get?
96%+ two-stage is the sweet spot for most Cambridge homes. We balance upfront cost, your gas bills, and available rebates rather than just selling the top model.
Do you remove the old furnace?
Yes — removal and disposal are included in every install.
Serving Cambridge and surrounding areas. Contact us for a free, no-obligation quote specific to your project.