Boiler Installation Toronto: High-Efficiency, Combi, Replacement and Hydronic Heating Service Across Riverdale, Leslieville, The Annex and Cabbagetown
Boiler installation in Toronto means working on pre-1950 housing stock with original cast iron radiators, M-series postal codes, and boilers that are commonly 25 years or older. We install 95%+ AFUE condensing units that keep the existing radiator distribution, and we publish the CAD price before you book.
- M-series
- Same-day GTA dispatch, 4-hour cold-snap response
- TSSA G1/G2 Licensed Crew
- Riverdale
- Leslieville
- The Annex
- Cabbagetown
- High Park
- Bloor West Village
- 5-Star Customer Satisfaction
- Same-Day GTA Emergency Dispatch
- 22 Years of Boiler Installation Experience
- Written Workmanship Warranty
What Actually Stops GTA Homeowners From Replacing an Aging Boiler
Four objections come up on almost every call. Here is the straight answer to each, with the CAD numbers attached.
1. “The quote is huge, I am being oversold”
A high-efficiency condensing swap runs $6,500 to $12,000 CAD because it includes a new condensate line, PVC flue rework, near-boiler piping, expansion tank, zone controls, and the TSSA permit. Every line item appears on the quote in CAD. Combined Enbridge and federal rebates offset up to $11,500 CAD.
2. “You cannot tell if the technician is really licensed”
Ontario requires TSSA G1 or G2 certification for gas boiler work, plus CSA B51 for large-BTU pressure vessels. Certificate numbers appear on every invoice and TSSA permit numbers appear on completed work.
3. “Nobody publishes the price”
Our four CAD scope bands are published on this page: diagnostic $99 to $249, standard repair $200 to $1,200, major repair $1,200 to $3,500, and full combi installation $4,500 to $8,500. High-efficiency condensing runs $6,500 to $12,000 CAD.
4. “The boiler is 25 years old, repair or replace?”
Cast iron lasts 30 to 50 years but drops to 60 to 70 percent efficiency by year 25. A modern 95% AFUE unit cuts natural gas bills 25 to 35 percent, qualifies for up to $11,500 CAD in rebates, and pays back in 6 to 10 years. You get a written repair-versus-replace on every diagnostic.
What Boilers in Toronto Actually Look Like
Pre-1950 homes with original cast iron radiators; boilers commonly 25+ years old dropping below 70% efficiency.
Typical failure pattern: 25-year-old cast iron sectional cracking or losing efficiency, prompting a high-efficiency retrofit that keeps the radiator distribution.
Postal codes served: M-series. Covering Riverdale, Leslieville, The Annex, Cabbagetown, High Park, Bloor West Village and the surrounding neighbourhoods, under City of Toronto.
Older Toronto cast iron systems run $8,500-$14,500 CAD for a full high-efficiency retrofit.
- Same-day GTA dispatch, 4-hour cold-snap response
- 22 years serving Toronto and the GTA
- TSSA G1/G2 technicians dispatched across Old Toronto
- 4-hour cold-snap response
Our Boiler Services in Toronto
Boiler installation in Toronto means working on pre-1950 housing stock with original cast iron radiators, M-series postal codes, and boilers that are commonly 25 years or older. We install 95%+ AFUE condensing units that keep the existing radiator distribution, and we publish the CAD price before you book.
Most Requested High-Efficiency Condensing Boiler Installation Toronto
95%+ AFUE condensing boiler installation with 316L stainless heat exchangers, PVC side-wall venting, and full Enbridge plus Canada Greener Homes rebate coordination across Toronto and the GTA.
Space Saver Combi Boiler Installation Toronto
Compact wall-mounted combi boilers delivering uninterrupted heating and on-demand domestic hot water, sized by GPM for Toronto homes and fitted with descaling valves for GTA hard water.
Boiler Replacement Toronto
End-of-life gas boiler replacement for 15 to 40 year old systems, including cast iron conversions, chimney liner de-commissioning, gas line sizing, and disposal across Toronto and the GTA.
Commercial Boiler Installation Toronto
Rooftop and basement commercial boiler installation for retail plazas, restaurants, offices, and mid-rise condos, built to CSA B51 pressure vessel code and ASHRAE 90.1 efficiency standards.
Hydronic Heating and Radiator Installation Toronto
Hydronic distribution design and radiator installation: cast iron column radiators, baseboard convectors, thermostatic radiator valves, and oxygen-barrier PEX manifolds, balanced and air-eliminated.
In-Floor Radiant Heating Toronto
Hydronic in-floor radiant heating retrofits and new-build installs with PEX loop layout, mixing valves, and return-water protection across four zones in Toronto and GTA homes.
Best Value Boiler Maintenance and Annual Service Toronto
Annual 12-point boiler tune-up with digital combustion analysis, expansion tank pre-charge, water pH and glycol testing, and pressure relief valve testing to keep warranties valid.
Boiler Repair Toronto
Standard and major boiler repair across ignition, pressure, and heat exchanger faults, with published CAD bands and a written repair-versus-replace analysis on every diagnostic.
24/7 Dispatch Emergency Boiler Repair Toronto
24/7 emergency boiler repair with same-day GTA dispatch and 4-hour cold-snap response for no-heat, red-tag, ignition-lockout, and frozen condensate failures.
Why Toronto Homeowners Call Us First
- 22 Years of Boiler Installation Experience across Toronto and the GTA
- Cast iron radiator retrofits that keep your existing distribution, $8,500 to $14,500 CAD
- TSSA G1 and G2 licensed on every install, certificate numbers on the invoice
- Enbridge Home Efficiency Rebate Plus and Canada Greener Homes paperwork filed for you
- Same-day dispatch with 4-hour response during a cold snap
- Four CAD scope bands published on the page, never gated behind a form
How Our Toronto Boiler Installation Works, 6 Steps
From the first call to the rebate cheque, here is exactly what happens and in what order.
Site assessment
Postal code, home age, distribution type, existing AFUE, and heating load in BTU per square foot. Same-day or next-morning visit.
Manual J heat load and sizing
Written heat load with boiler capacity sized to the actual home load. No oversizing, which is what causes short cycling.
Written quote, three options
Combi, split system, and high-efficiency retrofit priced in CAD with parts, labour, permits, disposal, and rebate offset per option.
TSSA permit and scheduling
Ontario Building Code Part 6 compliance verified. Installation within 3 to 7 business days standard, 24 to 48 hours on emergencies.
Installation and commissioning
Boiler installed to CSA B51, near-boiler piping to ASHRAE 90.1, condensate neutralised, combustion analysis with a CO monitor, system purged and rebalanced.
Verification and rebate filing
TSSA inspection where required, warranty registration filed, Enbridge and Canada Greener Homes paperwork submitted, written workmanship warranty issued.
Need a boiler quote in Toronto?
Published CAD pricing, TSSA-licensed technicians, and same-day dispatch across the whole coverage area.
How We Reach Riverdale, Leslieville and The Annex Fast
Old Toronto is the densest part of our coverage area and the hardest to drive, so dispatch is planned around it rather than around a single depot. Crews stage from the Don Valley Parkway and the Gardiner Expressway and cut across on Danforth Avenue, Queen Street East, Bloor Street West, and Dupont Street depending on the postal code. A call from Riverdale or Leslieville is normally reached inside the same working day, and a no-heat call during a cold snap gets a technician within four hours.
Laneway access and street parking shape the job more than the distance does. Row houses in Cabbagetown and The Annex often have no driveway, so the crew brings a hand truck and a spare-parts case rather than staging from the van. Boiler removal on a narrow lot is planned before the day of installation: the old cast iron sectional is broken down in the basement and carried out in sections instead of being winched whole up a stairwell.
Permit handling also runs on a Toronto timetable. The TSSA permit is pulled before the install date and the City of Toronto inspection is booked at the same time, so a heating system is never left in a partly commissioned state waiting on paperwork.
The Toronto Housing Stock We Work On Every Week
Most Toronto boiler work happens in houses built between 1900 and 1950. Riverdale, Leslieville, Cabbagetown, and The Annex are full of two and three storey homes with original cast iron column radiators fed by what began as a gravity hot water system. Those radiators are worth keeping. They hold heat, they are quiet, and replacing them with forced air would mean tearing out plaster to run ductwork.
The catch is temperature. A cast iron system was designed to run at 180F supply, and a condensing boiler only reaches its rated 95%+ AFUE when the return water comes back below roughly 130F. We solve that with an outdoor reset curve, a mixing valve, and return-water temperature protection so the boiler condenses for most of the heating season instead of only on mild days.
High Park and Bloor West Village add a second pattern: semi-detached homes converted to two units where the original single-zone loop now serves two households with different schedules. Those get zone valves and a modulating control so one tenant is not heating the other tenant's floor.
- Cast iron column radiator distribution retained and rebalanced
- Gravity hot water conversion to a pumped, zoned system
- Chimney liner de-commissioning when moving to PVC side-wall venting
- Narrow-lot direct venting where setback distances are tight
- Duplex and triplex zoning for converted semis
What Toronto Customers Say
Our 90-year-old Riverdale home kept the original radiators. The crew added a condensing boiler with mixing valves and return-water protection for $11,200 CAD and filed the rebate paperwork.
Priya S.
Riverdale
5-Star Customer Satisfaction
The Annex row house had a cracked heat exchanger. They routed a PVC side-wall vent on the narrow lot and installed a 95% AFUE unit for $9,800 CAD.
Marcus T.
The Annex
Top-Rated Contractor
Cabbagetown cold snap, no heat overnight. A technician arrived by morning and had a new combi running the same day for $7,100 CAD.
Elena V.
Cabbagetown
Trusted by Homeowners and Businesses
Tell Us What Your Boiler Is Doing
Short form, no gatekeeping. A TSSA-licensed technician follows up with a written CAD quote for Toronto, and the diagnostic fee comes off the invoice when you authorise the work on the same visit.
- Four published CAD scope bands, never gated
- Same-day GTA dispatch, 4-hour cold-snap response
- Enbridge and Canada Greener Homes paperwork filed for you
- Written workmanship warranty on labour
Thanks, we have your message.
A TSSA-licensed technician follows up within one business day.
Request a Written Installation Quote
Send the details and a TSSA-licensed technician follows up with an itemised CAD quote. No email address required from us, no quote gating from you.
Boiler Installation Toronto: Frequently Asked Questions
How fast can you get to a no-heat call in Riverdale or Leslieville?
What does a boiler installation cost in Toronto?
Can I keep my cast iron radiators?
Which Toronto neighbourhoods do you cover?
My house has no driveway. Can you still remove the old boiler?
Do you pull the permit and meet the City of Toronto inspector?
My boiler is 28 years old but still running. Should I replace it now?
Can you vent a new condensing boiler if my chimney is shared?
Still have a question about your boiler?
Talk to a TSSA-licensed technician. Same-day GTA dispatch, 4-hour cold-snap response.
Boiler Service Coverage in Toronto
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Book Boiler Installation in Toronto
Same-day dispatch with a four hour cold-snap response, and an itemised CAD quote before any work starts.
- Written workmanship warranty
- Published CAD pricing, no quote gating
- TSSA G1/G2 licensed technicians