It's 15–20+ years old
Many older boilers reach a point where further repairs no longer make economic sense.
Boilers / Boiler Replacement
Boiler ReplacementWhen an older boiler has done its job, a modern high-efficiency system is often the better long-term investment — quieter, cleaner and dramatically less expensive to run.
— Signs It's Time
When replacement makes sense.
Most boilers should be repaired, not replaced. But when several of these are true at once, a new system usually delivers better value than continuing to patch the old one.
Breakdowns are increasing
More service calls, especially in winter, are a clear signal the system is nearing the end of its life.
Repair costs are rising
When a repair approaches a significant share of replacement, it's worth having the conversation.
Efficiency is dropping
Older mid-efficiency boilers can lose noticeable capacity — and burn far more fuel than a modern unit.
Comfort is inconsistent
Cool spots, uneven zones and noisy rads that never quite feel right.
Safety concerns
Corroded heat exchangers, cracked sections or venting issues should never be ignored.
— Repair vs Replacement
Is this the year?
We'll walk through the numbers with you honestly. If a repair still makes sense, we'll say so.
— Repair usually makes sense when
A repair keeps a good system running.
- The boiler is under 12 years old
- The repair is minor or moderate in cost
- The system has been reliable overall
- Heat output and comfort are still good
— Replacement may be the better investment when
A new boiler delivers real long-term value.
- The boiler is 15–20+ years old
- Repair cost approaches a significant share of replacement
- Breakdowns are becoming more frequent
- Efficiency, comfort or safety is clearly declining
— Replacement Process
A calm, well-planned changeover.
Every boiler replacement follows the same steady process, from the first walkthrough to the final commissioning.
- 01
In-home assessment
We walk the mechanical room and review the existing hydronic system with you.
- 02
Written proposal
Clear equipment options and pricing, with the trade-offs explained plainly.
- 03
Careful removal
Old boiler and related components removed cleanly, with the space left tidy.
- 04
New installation
Modern boiler installed and piped properly, with new venting and controls as required.
- 05
Commissioning
Combustion analysis, pressure setup, purging of air and control programming done properly.
- 06
Walkthrough
A clear handover so you understand how your new boiler runs and how to look after it.
— Why Replace
Real gains, not marketing gains.
A modern condensing or combi boiler delivers meaningful improvements in efficiency, comfort and quiet — especially compared to a 20-year-old cast iron unit.
Higher efficiency
Condensing boilers regularly operate above 95% AFUE — a significant improvement over older mid-efficiency units.
Modern controls
Outdoor reset, indoor sensors and thoughtful zoning that keep the system quiet, efficient and predictable.
Improved reliability
Modern components, better safeties and controls designed to keep your home comfortable through Toronto winters.
Quieter operation
A properly installed condensing boiler runs almost silently in daily use.
— Financing
Comfortable monthly payments.
Boiler replacements are meaningful investments. Financing lets you install the right system today and spread the cost over comfortable monthly payments.
Explore Financing— ProperCare
Looked after from day one.
Add ProperCare to your new boiler so it's serviced annually, priority-booked when something needs attention and looked after properly — year after year.
Explore ProperCare— Why Homeowners Choose Proper HVAC
Replacement done properly.
Hydronic-literate installers
Comfortable with condensing, combi, radiator, baseboard and radiant systems.
Clear communication
Straightforward explanations before, during and after the changeover.
Clean workmanship
Tidy near-boiler piping, labelled valves and a mechanical room you'll be happy to show.
Respect for your home
Boot covers, drop cloths and a careful cleanup — always.
Right-sized systems
We design the new system for your home instead of oversizing to be safe.
Honest recommendations
The right equipment for your situation — not the most expensive we could sell.
— FAQ
Frequently asked questions.
What Toronto homeowners ask us most often when planning a boiler replacement.
Still not sure? Contact us and we'll help you decide the right next step.
It varies with the system and how well it's been maintained. Well-cared-for cast iron boilers can last many years, while newer condensing boilers depend heavily on water quality, combustion setup and annual maintenance. We can give you an honest read on your specific unit.
In most cases, yes. Condensing boilers require appropriate venting and a condensate drain, and the near-boiler piping is typically reconfigured. We check the existing setup and design a system that works with what you have.
Often, yes. If your hot water demand is compatible and there's a suitable location for a wall-hung unit, a combi can consolidate heating and domestic hot water into a single appliance. We'll confirm it's a good fit for your home before recommending it.
A straightforward like-for-like replacement typically takes one to two days. Switching boiler types, adding zones or reworking venting can extend that timeline. We give you a realistic schedule before we start.
In most cases, yes. Existing radiators, baseboards and distribution piping are usually reused, with new near-boiler piping and controls installed to match the new equipment.
Yes. Financing lets you install the right system today and spread the cost over comfortable monthly payments. See our Financing page for details on how it works.
We recommend it. Modern condensing boilers benefit significantly from annual servicing — combustion analysis, water chemistry and control checks — and ProperCare makes that ongoing care straightforward.
Proper HVAC replaces boilers for homeowners throughout Toronto and the Greater Toronto Area, including Etobicoke, North York, Scarborough, York, Vaughan, Richmond Hill, Markham, Mississauga, Oakville and Brampton.
— Get Started
Time For A New Boiler?
Book a consultation, explore financing for your new system, or join ProperCare for ongoing peace of mind.
Or call 416-580-HEAT (4328)