
Annual boiler service and inspection by TSSA licensed technicians. Catch problems before they become breakdowns. Keep your system running efficiently and your warranty valid.
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A homeowner in Streetsville called us in January with no heat. Their boiler had locked out overnight. When our technician arrived, the diagnosis was straightforward: the expansion vessel had lost pressure and the system had been running outside its safe operating range for weeks. A simple issue that an annual service visit would have caught in October. We got the system running that morning, but the call-out, diagnosis, and repair cost significantly more than a routine service would have. Annual maintenance is not about ticking a box. It is about not being without heat in February.
A proper boiler service is not a visual inspection and a reset. Our technicians work through a full checklist of mechanical, electrical, and combustion components to confirm everything is operating correctly and within manufacturer specifications.
Most issues that cause mid-winter breakdowns are detectable weeks or months in advance. Annual servicing is how you catch them before they become emergencies.

Homeowners who stay current on boiler maintenance consistently report fewer breakdowns, lower gas bills, and longer system lifespan.
The issues that cause boiler failures in January and February are almost always detectable in advance. A failing pump seal, a scaling heat exchanger, or an expansion vessel that has lost pressure will all show up during a fall service appointment.
A boiler with a dirty heat exchanger or poorly calibrated burner works harder to deliver the same heat output. Annual cleaning and combustion tuning keeps the system running at its rated efficiency, which shows up directly on your gas bill.
Boilers that are serviced annually consistently outlast those that are not. Catching and addressing minor issues before they cause component damage is the single most effective way to extend the life of your heating system.
Book online or by phone. We confirm your appointment time and send a reminder before the visit. We recommend booking in the fall before the heating season begins.
Our technician works through a complete inspection checklist covering all mechanical, electrical, and combustion components. We test, measure, and adjust to manufacturer specifications.
We clean the heat exchanger, burner, and flue as needed, recharge the expansion vessel if required, and confirm all safety controls are functioning correctly.
We explain what we found, what we did, and flag anything that may need attention in the near future. You receive documentation of the service visit for your warranty records.

If your service visit reveals repairs or component replacements that are needed, we offer flexible financing so you can address them without delay.
We offer flexible financing through trusted lenders, including 0% interest for 12 months with approved credit. Monthly payment plans are available to fit any budget.
We confirm the scope of the service visit and give you a firm price before we begin. No surprise charges at the end of the appointment.
Our maintenance visits cover every component of your boiler system, not just a visual check. We test, measure, and adjust to manufacturer specifications.
Most boiler manufacturers require annual servicing to keep the equipment warranty valid. Our maintenance visits meet those requirements and we provide documentation.
All boiler service work in Ontario must be performed by a TSSA licensed technician. Our team is fully licensed and certified for gas-fired boiler systems.
As authorized contractors for leading HVAC manufacturers, we source and install only proven, high-efficiency equipment backed by manufacturer warranties.








Once a year is the standard recommendation. Annual servicing is also typically required to keep manufacturer warranties valid. The best time to book is in the fall, before the heating season begins, so any issues are caught before you are depending on the system through a Mississauga winter.
A full boiler service includes inspection and cleaning of the heat exchanger, burner, and flue, testing of all safety controls and limit switches, checking the expansion vessel pressure, inspecting the circulator pump and zone valves, testing combustion efficiency, and verifying proper operation of all zones.
Most boiler breakdowns we respond to in January and February share a common history: the system had not been serviced recently. Issues that cause mid-winter failures, such as a failing pump seal, an expansion tank that has lost pressure, or a heat exchanger beginning to scale, are exactly what an annual service catches and addresses.
Yes. Most boiler manufacturers require annual servicing by a licensed technician to keep the equipment warranty valid. We provide documentation of every service visit for your records.
Usually one to two hours for a standard annual service. If additional work is identified, we will explain what is needed and confirm pricing before proceeding.
Yes. We service all major residential boiler brands including Navien, Rinnai, Bosch, Viessmann, Weil-McLain, Burnham, and others. Our technicians are trained on both modern condensing boilers and older cast-iron systems.
Yes. We serve all of Mississauga including Port Credit, Lakeview, Clarkson, Streetsville, Erin Mills, Cooksville, and Malton, as well as the broader GTA including Etobicoke, Oakville, and Burlington.
Contact Beyond HVAC today for boiler maintenance in Mississauga. TSSA licensed technicians, thorough inspection, and full documentation for your warranty records.