Boiler Repair and Service in Toronto
Hot water boilers are reliable heating systems, but when they fail you need a technician who understands hydronic heating inside and out. Imperial Heating provides same-day boiler repair across Toronto and the GTA for gas, electric, and oil boilers. Licensed technicians, upfront pricing, and emergency service available around the clock.
Trusted by Toronto Homeowners
See what our customers have to say about our boiler and heating repair services. We're proud to serve the GTA with reliable, professional solutions.
View All 120 Reviews"We called Andrew late one evening after an unexpected furnace issue. He was very helpful over the phone and quickly sent a technician. Professional, fast, and fair pricing. Highly recommend!"
Emily B
Customer, Toronto
"Andrew was able to come and replace our old furnace and old water heater the same day we found a gas leak. They worked quickly and were able to get us heat and hot water within the day."
Adam M
Customer, Toronto
"The imperial heating team did a great job installing my Rinnai tankless water heater. Clean and professional work. Thanks guys!!!!"
Lissette Mayo
Customer, Toronto
"The team came last minute and immediately fixed the problem for my furnace on a cold winter day! They were fair pricing and very professional. Highly recommend!"
Michael Lue
Local Guide, Toronto
"Great service and communication! The installation was done professionally and on time, and they left the space exactly as they found it."
Shelly
Local Guide, Toronto
"Great job by the team, the work was done neat and clean."
Karthik Krishna
Local Guide, Toronto
"Me and my wife are very happy and pleased with the work done by the imperial heating team. Very honest and great price. Please contact them for all your heating and cooling needs."
Kenneth Marianayagam
Customer, Toronto
"Had an issue with my furnace. This company showed up on time as promised and my problem was solved in no time. I highly recommend them!"
Hermina Whittingham
Customer, Toronto
Trusted brands we work with
Types of Boilers We Repair and Service
Toronto homes use a range of boiler types depending on the age of the building and the heating system design. Our technicians are trained to work on all of them.
Gas Boilers
The most common type in the GTA. Gas boilers heat water using natural gas and distribute it through radiators or in-floor radiant tubing. We handle everything from burner issues to gas valve replacement and heat exchanger repairs. All work performed by G2/G3 licensed gas technicians.
Electric Boilers
Electric boilers are common in condos and smaller homes without gas lines. They are quieter and require less ventilation, but can still develop issues with heating elements, thermostats, and circulator pumps. We diagnose and repair all electric boiler brands.
Oil Boilers
Still found in many older Toronto and East York homes. Oil boilers require specialized knowledge of fuel delivery systems, oil burner nozzles, and combustion chambers. Our team services oil-fired systems and can advise on conversion options if you are considering switching to gas.
Condensing Boilers
High-efficiency condensing boilers recover heat from exhaust gases and can achieve efficiency ratings above 95%. They are increasingly popular in new builds and retrofits. We service all condensing boiler brands and handle common issues like condensate drain blockages and flue problems.
Common Boiler Problems We Fix
Our technicians diagnose and repair these issues daily. Most boiler repairs are completed in a single visit.
No Heat or Hot Water
The most common boiler complaint. Causes range from a failed motorized valve or diverter valve to a broken thermostat, low water levels, or a faulty pump. We diagnose the root cause and restore heat quickly.
Boiler Leaking Water
Leaks can originate from corroded pipes, a failing pressure relief valve, pump seals, or internal corrosion. Even small leaks cause significant damage over time. We locate the source and repair or replace the affected component.
Kettling (Rumbling Noises)
A rumbling or banging sound from the boiler usually means limescale buildup on the heat exchanger, restricting water flow and causing overheating. We flush the system and descale the exchanger to restore quiet, efficient operation.
Low Boiler Pressure
If the pressure gauge reads below 1 bar, your system cannot circulate hot water effectively. Common causes include a water leak in the system, a recently bled radiator, or a failing expansion vessel. We repressurize and fix the underlying issue.
Pilot Light Keeps Going Out
A pilot light that will not stay lit points to a faulty thermocouple, a blocked pilot jet, or a draught issue. On older boilers, this is one of the most frequent service calls. Our technicians resolve it in a single visit.
Radiator Cold Spots
Cold patches on radiators typically indicate trapped air, sludge buildup in the system, or a failing circulator pump. We bleed the radiators, power flush the system if needed, and verify even heat distribution across every room.
Why Annual Boiler Maintenance Matters
A boiler that runs without annual servicing is more likely to break down, lose efficiency, and develop safety issues. Regular maintenance catches small problems before they become expensive repairs. Here is what a professional boiler tune-up includes:
Full inspection of the heat exchanger for cracks and corrosion
Check and adjust boiler pressure to manufacturer specifications
Test all safety controls including pressure relief valve and low-water cutoff
Inspect and clean the burner assembly and pilot or ignition system
Flush and bleed radiators to remove trapped air and sludge
Test circulator pump operation and check for leaks at seals
Verify thermostat accuracy and calibrate if needed
Inspect flue and venting for blockages or deterioration
An annual boiler service typically costs between $150 and $250 and can extend the life of your system by years. It also helps maintain your manufacturer warranty, which often requires documented annual servicing. Book your boiler maintenance by filling out the form below.
All Boiler Brands Serviced
Our technicians are trained and experienced with every major boiler brand sold in Ontario. Whether your system is brand new or decades old, we have the parts and expertise to get it running.
Don't see your brand listed? We service virtually all residential and light commercial boiler makes and models. Call us at (647) 852-2359 to confirm we can help.
Boiler Repair vs. Replacement: How to Decide
Boilers generally last longer than forced-air furnaces, with many systems running 20 to 30 years. But there comes a point where replacement is the smarter investment. Here is how to decide:
Repair Makes Sense When:
- Boiler is under 20 years old and in generally good condition
- This is the first or second major repair
- Repair cost is well under 50% of replacement cost
- Heat exchanger and sections are intact without cracks
Replacement Makes Sense When:
- Boiler is 25+ years old with declining efficiency
- Multiple repairs in the past 2 to 3 years
- Cracked heat exchanger sections or visible corrosion
- Energy bills rising despite regular maintenance
Our technicians will always give you an honest recommendation. We will never push a replacement when a repair will solve the problem. If replacement is the better option, we offer flexible financing and can install a modern high-efficiency condensing boiler that significantly reduces your monthly gas bills.
24/7 Emergency Boiler Repair
Boiler stopped working overnight or on a weekend? A failed boiler in a Toronto winter is not just uncomfortable — it can lead to frozen pipes and water damage. We offer round-the-clock emergency boiler repair with no overtime charges. Our technicians are dispatched to Toronto and GTA locations within hours.
Call (647) 852-2359 NowWhy Choose Imperial Heating for Boiler Repair
Same-Day Service
Most boiler repairs are completed the same day you call. No waiting days without heat or hot water.
Hydronic Heating Specialists
Boilers require different expertise than forced-air systems. Our technicians specialize in hot water heating, radiators, and in-floor radiant systems.
Licensed & Insured
Fully licensed G2/G3 gas technicians and TSSA-certified professionals you can trust with your home.
Upfront Pricing
You receive a written quote before any work begins. No hidden fees, no surprises on the invoice.
All Brands Serviced
Weil-McLain, Navien, Viessmann, Buderus, Rinnai, and every other residential boiler brand in Ontario.
Warranty on Repairs
Every repair comes with a written parts and labour warranty. We stand behind our work.
Boiler Repair FAQs
Common questions Toronto homeowners ask about boiler repair costs, maintenance, and service options.
Related Heating Services
Heating Services
Full heating installation, repair, and maintenance for Toronto homes.
Furnace Repair
Same-day furnace repair for all brands across Toronto and the GTA.
Furnace Installation
New furnace installation with rebate assistance and financing options.
Heating Cost Guide
Detailed breakdown of heating repair and installation costs in Toronto.
Financing
Flexible payment options for repairs and new installations.
Emergency Repair
24/7 emergency HVAC service with no overtime charges.
Boiler Repair Service Areas
We provide boiler repair services across Toronto and the Greater Toronto Area, including Scarborough, North York, Etobicoke, Markham, Vaughan, Richmond Hill, Mississauga, Brampton, and Oakville.
Need Your Boiler Fixed Today?
Call Imperial Heating now at (647) 852-2359 or book online. Same-day service available across Toronto, Scarborough, Markham, and the entire GTA.
Request Boiler Repair Service
Fill out the form below for a free estimate, or call us at (647) 852-2359 for immediate service.
