When the brutal winter chill sets in, a dependable heating system can save you from freezing. We all know how cold it gets here in the city, so a sudden HVAC breakdown can disrupt your whole life.

Whether you’re dealing with a noisy boiler or need routine maintenance before an emergency hits, you need the best boiler repair service in Montreal to ensure proper fixes.

So, we put together a helpful guide to point you toward the right providers. It’s time to stay warm and cosy!

Repair Type or Part	Estimated Cost Range (CAD)
Service Call & Diagnosis	$120-$170
Hourly Labour Rates	$79-$140 per hour
Routine Maintenance	$100-$200
Radiator Valve Replacement	$150-$350
Zone Valve Replacement	$200-$500
Expansion Tank Replacement	$200-$800
Circulating Pump Replacement	$300-$1,100
Major Component Repairs	$750-$2,600

How We Reviewed

1. Plomberie Chauffage Normand

Website: https://www.plomberienormand.ca/

Address: 8501-A Rue Cordner, LaSalle

Contact: 514-488-6577 | [email protected]

Regular Hours: Monday-Friday, 7:00 AM-5:00 PM

Emergency Availability: 24/7 for established customers only

Plomberie Chauffage Normand works with both gas and electric hydronic heating systems, making them a practical option for boiler repairs. 

They can repair connected components, such as radiators, so you can handle your heating needs with one contractor.

One client we spoke with used them last winter after their baseboards stopped heating and said the team quickly found the faulty valve.

They work with both single-family homes and commercial spaces, giving them experience with different heating setups. Plus, if a replacement is needed, they offer a free visit to provide an estimate.

However, their 24/7 emergency service is only available to existing clients. New customers shouldn’t count on immediate after-hours help.

The estimate for the installation of an electric hot water wall boiler was very reasonable

We have used them in the past and this time around again the estimate for the installation of an electric hot water wall boiler was very reasonable, they also moved the hot water tank to the designated mechanical room, the techs who did the work extremely professional and Francois was present for any questions we had and the girls at the reception were very polite. I would definitely recommend Plomberie Normand and will use them again in the future. Thank you to the entire team for a pleasant experience.

— Miss Montreal | Google Review

Normand installed my new gas boiler

Normand installed my new gas boiler. My Gaz Metro repairman contacted them after having discovered a leak in my old boiler. That was on a Friday. M. Pineau visited me that afternoon and sent me a quotation the next day. The office, Kaoutar and her colleagues, was courteous and helpful. By the following Friday Ali and Alex had completed the two-day job. They did excellent work.

— Joseph K | Google Review

2. Plomberie Roger Chayer Inc.

Website: https://www.plomberiechayer.com/

Address: 5535 rue Chapleau

Contact: 514-590-0666 | [email protected]

Appointments: Routine visits arranged through dispatch

Hours: Available 24/7 

Plomberie Roger Chayer Inc. combines boiler repair with regular hydronic system maintenance, making it easier to keep your heating system running properly. 

They offer replacement options from brands such as Thermo 2000 electric boilers and IBC gas boilers, alongside repairs for existing equipment.

Their services cover residential homes, multi-unit properties, and commercial buildings. You can even book annual maintenance checks or discuss converting your heating system to a different energy source.

This gives you a few options before deciding if an older boiler really needs replacing.

But remember, their service terms include a minimum charge of 1.5 hours of labour, with travel time billed separately. As a result, even a short repair can cost more than expected, so confirm the charges before booking.

The functioning of the boiler was very patiently explained

I have been very impressed with Roger Chayer Inc since the beginning when they installed my furnace, a wall unit Weil-McClain in 2016. The whole system and functioning of the boiler was very patiently explained to me in detail and all my questions answered and even though I was supplied with a detailed manual. Since then I have had the furnace serviced by well informed and professional technicians. Very happy.

— Renee van Riel | Google Review

The Roger Chayer team is the best I have yet encountered

They were excellent! I have 30+ years in the trades, and their service call for my home furnace was of the highest standard. Their team on-site were a pleasure to work with. They had a clear familiarity with the equipment on our system, and made a rapid diagnosis and repair. I have worked with other heating contractors, and the Roger Chayer team is the best I have yet encountered.

— Duncan Chisholm | Google Review

3. ACTIF

Website: https://actif.com/

Address: 5855 boulevard Décarie

Contact: 514-344-3838 | [email protected]

Hours: Available 24/7 

ACTIF handles gas and electric heating systems, along with steam and hot-water repairs. They work with residential, commercial, and industrial properties, making them useful for buildings with different HVAC needs.

If you need broader heating or cooling work, you can compare HVAC contractors in the city alongside boiler specialists.

One client we spoke with had their property manager hire this team to fix a large steam boiler in their apartment building. They said the team arrived within an hour, which was especially helpful during an unexpected breakdown.

Plus, their emergency contact is available around the clock, so you can reach out even for late-night heating issues.

However, emergency visits may include separate call-out and labour charges, so it’s best to confirm the cost before booking.

Clean and service our gas boiler

It’s been a long road to get a good service for my hydronic heating system. After some very unpleasant experiences with some major service companies I came upon ACTIF. They came recommended to me by a few people. Francis showed up to clean and service our gas boiler and it was immediately clear what kind of company I was dealing with. He was friendly, clean and thorough. The previous technician had made some serious mistakes on the boiler which Francis fixed for me. He also took the time to explain how to best maintain my boiler – which is older…

— Sean | Google Review

Prompt to respond when our gas boiler broke down

I had a great experience with Actif! They were prompt to respond when our gas boiler broke down in December. François is very knowledgeable and effective. Getting governmental subsidies for switching to Biénergie was very simple with his help. The team was professional and efficient. I highly recommend!

— c c | Google Review

4. Superior Plumbing & Heating of Montreal

Website: https://superiorplumbing.ca/

Address: 3460 rue Peel

Contact: 450-914-7904 | 514-700-4456 | [email protected]

Hours: Available 24/7

Superior Plumbing & Heating of Montreal combines boiler repairs with general plumbing services, giving you one company to call for different home heating needs.

They service conventional, combination, and system boilers, so they can work with a range of setups. Plus, they cater to both homeowners and businesses across the city.

Beyond quick repairs, they even offer maintenance and replacement services, while their emergency support is available 24/7. This makes them a convenient option when a heating issue happens outside normal hours.

However, emergency visits can cost more than regular appointments, so it’s best to ask about call-out and labour charges before booking.

This fantastic level of service

Called Superior in the morning. They had someone at our place within a couple hours. Hunter called us about half an hour before coming. He arrived and was extremely friendly and professional. He solved our plumbing issue very quickly, and the work was perfect. We will definitely be calling Superior again given this fantastic level of service.

— JP Loberto | Google Review

Very efficient in the way he assessed my problem

Kurtis called before he came and was right on time. He was very efficient in the way he assessed my problem and generated two quotes for two different alternatives to solve the problem. I would highly recommend Superior Plumbing and Kurtis.

— Elizabeth Johnston | Google Review

5. J W Plumbing & Heating

Website: https://jwph.com/

Address: 3880 Avenue de Courtrai

Contact: 514-735-5583 | [email protected]

Regular Hours: Monday-Friday, 8:00 AM-4:00 PM

Emergency Service Hours: 4:00 PM-8:00 AM 

J W Plumbing & Heating stands out for handling detailed, component-level heating repairs. They take on jobs such as boiler retubing and heat-exchanger repairs, giving you repair options to consider before replacing the entire unit.

Their team works with both gas and electric heating equipment. The team can even repair two-way and three-way valves, as well as electronic and pneumatic controls.

This wider range is useful for buildings where the heating problem involves more than just the boiler.

Unfortunately, their regular weekday hours end at 4:00 PM. Evening and overnight visits are reserved for emergencies, so it’s best to schedule routine work during the day.

Excellent work with great attention to detail

We had a very positive experience discovering JW Plumbing/Heating. We are very appreciative of the excellent service provided by technician Jayson yesterday. He is very professional with extensive experience. We have a gaz heating high-efficiency boiler but no hot water upstairs. Jayson performed a diagnostic and excellent work with great attention to detail. We appreciate your honesty and integrity , Jayson; you provided what was actually needed. We are very grateful for your assistance, and would highly recommend you to anyone looking for a reliable service…

— Lidia | Google Review

The overall experience was smooth and stress-free

Excellent Service from Ifran Khan

I recently had the pleasure of working with Ifran Khan from JW Plumbing and Heating, and I’m very impressed with the service. Ifran was professional, punctual, and clearly experienced. He quickly diagnosed the issue, explained the solution in simple terms, and completed the work efficiently. He also made sure everything was clean and in perfect working order before leaving. The overall experience was smooth and stress-free. I highly recommend Ifran and the team at JW Plumbing and Heating!

— Ahsan Mahmood | Google Review