HVAC Maintenance & Tune-Ups in Trenton & Quinte West

Most HVAC breakdowns are preventable. A dirty burner, a failing capacitor, a clogged condensate drain — these are small issues that a tune-up catches before they become expensive emergency calls. Brandon performs thorough, systematic inspections that go beyond a quick filter swap.

Fall furnace tune-ups should happen before the heating season — ideally September or October. Spring AC tune-ups should happen before the first hot weather. Heat pump systems benefit from a tune-up in both spring and fall. Boilers should be serviced annually.

Johnston Mechanical does not offer maintenance plans with monthly fees or locked-in contracts. You call when you need service, and Brandon shows up and does the work. No upsells, no pressure, no made-up urgency.

Manufacturer warranties on most HVAC equipment require documented annual maintenance to remain valid. Skipping tune-ups does not just risk a breakdown — it can void the warranty on a furnace or heat pump that still has years of coverage remaining. Brandon provides a written service record after every visit.

For homeowners who had their system installed by Johnston Mechanical, Brandon already knows your equipment — the installation date, the model, and any quirks noted at commissioning. That history makes every subsequent tune-up faster and more thorough than a cold call from a technician who has never seen your system before.

What Brandon looks for during a furnace tune-up goes beyond the basics. He checks the heat exchanger for cracks — a cracked heat exchanger allows combustion gases including carbon monoxide to enter your living space, which is a serious safety issue that a visual inspection alone can miss. He also checks the inducer motor, the pressure switches, the igniter, and the flame sensor — components that fail gradually and give warning signs before they strand you without heat on a January night.

For central AC and heat pump systems, the spring tune-up includes checking refrigerant pressures, inspecting the evaporator and condenser coils for fouling, testing the capacitors and contactors, verifying the condensate drain is clear, and confirming the system is achieving the rated temperature split across the coil. These checks catch the issues that cause mid-summer failures.

Brandon provides a written service record after every maintenance visit. This documents what was inspected, what was found, and what was done — useful for warranty claims, insurance purposes, and for tracking your equipment's condition over time. If something needs attention that is outside the scope of the tune-up, Brandon will tell you clearly what it is and what it will cost to fix, without pressure.

Serving Trenton, Quinte West, Belleville, Brighton, Frankford, Stirling, Campbellford, and surrounding communities.