Toronto Boiler Installation, Replacement and Emergency Service: High-Efficiency Condensing, Combi, Hydronic and Commercial Across the GTA
Toronto Boiler Installation delivers TSSA-licensed boiler installation, high-efficiency condensing retrofits, combi swaps, hydronic system design, and 24 hour emergency boiler service across Toronto, Vaughan, Mississauga, Brampton, Markham, Richmond Hill, and the wider GTA. Our four transparent CAD scope bands are published on the page: diagnostic from $99 CAD, standard part repair from $200 CAD, major component replacement from $1,200 CAD, and full high-efficiency condensing boiler installation from $6,500 CAD, with the diagnostic fee waived when you authorise the installation on the same visit. Every technician holds a valid TSSA G1 or G2 gas certification, and every quote itemises the parts, labour, permits, and CAD total before payment.
Most calls come from a trigger: boiler failed on the first cold snap, ignition sequence not firing, system losing pressure daily, heat exchanger showing corrosion, 25-year old cast iron finally cracked, landlord needing certification for RentSafeTO, or commercial operator failing TSSA inspection. Diagnostic, quote, and installation handled end to end.
- TSSA G1 and G2 Licensed Technicians
- 22+ Years GTA Boiler and Hydronic Service
- ENERGY STAR Certified for Enbridge and Greener Homes Rebates
- $2M Liability Insurance and WSIB Registered
- Transparent CAD Pricing, No Quote Gating
- Same-Day Emergency Dispatch, 24/7 Cold Snap Response
High-Efficiency 95%+ AFUE Certified
Four Published CAD Scope Bands
- Diagnostic
- $99 - $349 CAD
- Standard repair
- $200 - $1,200 CAD
- Major repair
- $1,200 - $3,500 CAD
- Full installation
- $3,500 - $20,000 CAD
- 5-Star Customer Satisfaction
- Same-Day GTA Emergency Dispatch
- 22 Years of Boiler Installation Experience
- Written Workmanship Warranty
Manufacturer certified for every major boiler brand
- Viessmann Vitodens
- Weil-McLain
- Navien
- Bosch
- Buderus
- IBC
- NTI
- Lochinvar
- Rinnai
- Bradford White
Ontario distributor parts keep your manufacturer warranty valid.
Ontario Rebate Fast Filing
Save Up to $11,500 CADAs an ENERGY STAR certified installer we process your utility and federal grant paperwork directly, so the offset lands on your quote instead of on your to-do list.
Up to $6,500 CAD
Enbridge Home Efficiency Rebate Plus
Qualifying 95%+ AFUE installations paired with insulation upgrades.
Up to $5,000 CAD
Canada Greener Homes Grant
Federal grant on qualifying high-efficiency heating equipment.
Up to $40,000 CAD
Canada Greener Homes Loan
Interest-free financing at 0% over 10 years.
Published Boiler Pricing Bands in CAD
Four scope bands, published on the page and never gated behind a form. Every itemised quote includes parts, labour, TSSA permits, and haul-away.
- Standard Diagnostic Service Call
- $99 - $249 CAD
- After-Hours Emergency Diagnostic
- $199 - $349 CAD
- Annual Boiler Tune-Up (12-Point)
- $199 - $349 CAD
Diagnostic fee waived when you authorise installation or repair on the same visit.
- Circulator Pump Replacement
- $450 - $1,200 CAD
- Expansion Tank Replacement
- $250 - $550 CAD
- Zone or Mixing Valve Repair
- $250 - $650 CAD
- Thermocouple or Flame Sensor
- $200 - $450 CAD
- Ignition Control Board or Module
- $350 - $850 CAD
- Aquastat or Boiler Thermostat
- $250 - $650 CAD
- Pressure Relief Valve Replacement
- $200 - $450 CAD
- Heat Exchanger Repair or Replacement
- $1,200 - $3,500 CAD
- Cast Iron Sectional Replacement
- $1,500 - $3,500 CAD
- Gas Valve Replacement
- $650 - $1,400 CAD
- Boiler Circuit Board Replacement
- $600 - $1,400 CAD
- Radiator Repair or Replacement
- $450 - $1,200 CAD per unit
Every major repair comes with a written repair-versus-replace analysis in CAD.
- Combi Boiler Installation (space + hot water)
- $4,500 - $8,500 CAD
- High-Efficiency Condensing Boiler (95%+ AFUE)
- $6,500 - $12,000 CAD
- Commercial Rooftop Boiler Installation
- $8,500 - $18,000 CAD
- Hydronic Baseboard System Retrofit
- $3,500 - $9,500 CAD
- In-Floor Radiant Heating Installation
- $8,000 - $20,000 CAD
- Radiator and Hydronic Distribution Add-On
- $3,500 - $12,000 CAD
Enbridge and Canada Greener Homes rebates offset up to $11,500 CAD on qualifying installations.
What Actually Stops Toronto 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.
Toronto Boiler Installation and Hydronic Engineering Hubs
Eleven service lines covering installation, replacement, hydronic distribution, controls, maintenance, and 24 hour emergency response. Every page publishes its CAD band.
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.
Boiler Pump Replacement Toronto
Circulator and ECM pump replacement for noisy, seized, or leaking boiler pumps, published at $450 to $1,200 CAD including labour, with the system purged and rebalanced after the swap.
Boiler Controls and Thermostat Toronto
Aquastat, zone control, thermostat, and outdoor reset upgrades that improve boiler efficiency and often pay back in under two years across Toronto and the GTA.
Why Toronto Homeowners and Businesses Choose Us
Six differentiators, each one checkable. We publish the pricing, name the licensing, and file the rebate paperwork rather than handing you a form.
22 Years of Boiler Installation Experience
Two decades of TSSA-licensed high-efficiency boiler installation, combi retrofits, hydronic system design, radiator restoration, and emergency dispatch across the Toronto GTA.
Same-Day GTA Emergency Dispatch
Toronto, Vaughan, Mississauga, Brampton, Markham, Richmond Hill, North York, Scarborough, Etobicoke, and Oakville. Cold-snap no-heat calls answered within four hours.
Transparent CAD Pricing Published
Diagnostic $99 to $249, standard repair $200 to $1,200, major repair $1,200 to $3,500, full combi $4,500 to $8,500, high-efficiency condensing $6,500 to $12,000, commercial $8,500 to $18,000. Diagnostic waived on same-visit authorisation.
TSSA G1/G2 Licensed Technicians Only
Every installation meets Ontario B149 fuel code, CSA B51 pressure vessel code, and Ontario Building Code Part 6 and Part 7. Certificate numbers appear on every invoice.
Full Rebate Coordination
ENERGY STAR installer for Enbridge Home Efficiency Rebate Plus up to $6,500 CAD and the Canada Greener Homes Grant up to $5,000 CAD. We file the rebate paperwork on your behalf.
Manufacturer Certified for Every Major Brand
Viessmann Vitodens, Weil-McLain, Navien, Bosch, Buderus, IBC, NTI, Lochinvar, and Rinnai. Ontario distributor parts keep manufacturer warranties valid.
How Our Toronto Boiler Installation Process 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.
Not sure whether to repair or replace?
Every diagnostic ends with a written repair-versus-replace comparison in CAD. No pressure, no guessing.
TSSA-Licensed Installation vs. Unlicensed or Handyman Work
Gas boiler work is one of the few trades where the cheapest quote can carry the largest hidden risk. Here is what actually differs.
| What It Affects | TSSA-Licensed Installation | Unlicensed or Handyman Work |
|---|---|---|
| Certification | TSSA G1 or G2 certified, certificate number printed on every invoice | No certification requirement, no verifiable number |
| Manufacturer warranty | Stays valid with Ontario distributor parts and licensed labour | Frequently voided by generic parts or unlicensed installation |
| Code compliance | Ontario B149 fuel code, CSA B51, and Building Code Part 6 and 7 | No code review, no TSSA permit pulled |
| Insurance coverage | $2M commercial general liability insurance, WSIB registered | Often uninsured for gas appliance work |
| Rebate eligibility | ENERGY STAR installer, Enbridge and Canada Greener Homes paperwork filed | Rebates unavailable without a qualifying licensed installer |
| Safety verification | Combustion analysis with a CO monitor on every installation | No combustion verification, higher risk of an undetected leak |
Ask any contractor for their TSSA certificate number before work starts. We print ours on every invoice.
5-Star Customer Satisfaction Across Toronto and the GTA
Real installations, real CAD figures, across Cabbagetown, Leslieville and Vaughan.
Our Victorian radiator system had noisy cold zones and air pockets. The crew re-piped the basement header with a high-efficiency condensing unit and thermostatic balancing valves for $9,400 CAD. The house has never felt warmer.
Julian K.
Cabbagetown
5-Star Customer Satisfaction
When our old boiler began leaking across the floor during a January cold snap, dispatch had a technician at our door within three hours. They installed a new combi boiler for $6,800 CAD and handled all the rebate paperwork.
Sophie D.
Leslieville
Top-Rated Contractor
Diagnostics found a cracked combustion chamber in our 24-year-old boiler. We were given clear CAD options on the spot with no sales tactics. The new high-efficiency unit was running by 4 PM the next day for $8,100 CAD.
Arjun P.
Vaughan
Trusted by Homeowners and Businesses
- Years of Boiler Installation Experience
- 22 Years of Boiler Installation Experience
- GTA Cities Covered Same-Day
- 10 GTA Cities Covered Same-Day
- Cold Snap Emergency Dispatch
- 24/7 Cold Snap Emergency Dispatch
- Maximum Combined CAD Rebate
- $11,500 Maximum Combined CAD Rebate
Boiler Installation Across Toronto and Ten GTA Cities
Same-day dispatch across the whole coverage area, with a four hour response on no-heat calls during a cold snap. Each city page carries the local housing stock, the typical failure pattern, and the CAD cost anchor for that area.
Size Your Boiler or Find the Right Service in Minutes
No sign-up, no gatekeeping. Get an instant estimate before you ever pick up the phone.
Why So Many Toronto Boilers Are Being Replaced Right Now
Toronto has one of the largest concentrations of hydronic heating in North America, and most of it is aging at the same time. The pre-1950 housing stock across Riverdale, Leslieville, The Annex, Cabbagetown, High Park, and Bloor West Village was built around cast iron column radiators fed by gravity hot water systems. Those radiators are still excellent. The boilers feeding them have been replaced once, typically in the 1990s, which puts a very large share of GTA equipment in the 25 to 35 year window right now.
That matters because a cast iron sectional lasts 30 to 50 years mechanically but drops to 60 to 70 percent efficiency by year 25. The unit keeps running. The gas bill keeps climbing. A modern 95%+ AFUE condensing boiler cuts that consumption 25 to 35 percent, and with Enbridge Home Efficiency Rebate Plus at up to $6,500 CAD and the Canada Greener Homes Grant at up to $5,000 CAD, the payback on a $6,500 to $12,000 CAD installation typically lands between 6 and 10 years.
The newer half of the GTA is on a different clock. Vaughan, Brampton, Markham, and Richmond Hill subdivisions built from the 1990s onward run wall-mounted combi and condensing units with a 12 to 18 year service life. Those are reaching end of life in waves, street by street, because whole neighbourhoods were finished within a two or three year window with identical equipment. A combi swap there runs $5,500 to $9,500 CAD.
Both patterns lead to the same practical question: repair or replace. Every diagnostic we run ends with that comparison in writing, showing repair cost against remaining service life, projected gas savings, and the rebate offset. Roughly one call in five ends with us quoting the repair.
Tell Us What Your Boiler Is Doing
Short form, no gatekeeping. A TSSA-licensed technician follows up with a written CAD quote, 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.
Frequently Asked Questions
How much does boiler installation cost in Toronto?
What is the diagnostic fee?
Do I need a TSSA-licensed technician in Ontario?
How old should a boiler be before I replace it?
What Ontario rebates apply to a high-efficiency boiler?
80% AFUE vs 95%+ AFUE condensing?
Can you install a boiler on an older Toronto home with cast iron radiators?
Do you install commercial rooftop boilers in Toronto?
How long does a boiler installation take from quote to commissioning?
Do you pull the TSSA permit and handle inspections?
Can I finance a boiler replacement in Ontario?
Which parts of the GTA do you cover?
What warranty comes with the work?
Can you certify a boiler for RentSafeTO or Fire Code compliance?
Will you tell me honestly whether to repair or replace?
Still have a question about your boiler?
Talk to a TSSA-licensed technician. Same-day GTA dispatch, 4-hour cold-snap response.
Ready to Book Your Toronto Boiler Installation?
Book the site assessment and you get a written, itemised CAD quote with the rebate offset applied before any work starts.
- Written workmanship warranty
- Published CAD pricing, no quote gating
- TSSA G1/G2 licensed technicians