Boiler & Hydronic Heating
Expert Boiler Repair & Hydronic Heating
Specialized care for Toronto's radiators, in-floor heating, and high-efficiency combi-systems.
Hydronic heating is an art form. Unlike a standard furnace, a boiler system involves complex pressure valves, expansion tanks, and precise water chemistry. Whether you are nursing a 50-year-old cast-iron system or upgrading to a modern Navien combi-unit, you need a technician who understands the science of hot water heating.
We Speak “Radiator”
If you live in a pre-war brick home in the West End, your radiators are the heart of your house. But finding a tech who knows how to service them is getting harder. We don't just suggest “ripping it out.” We know how to maintain the character of your home while improving efficiency.
Vintage System Care
Fixing cold spots in radiators, silencing banging pipes (water hammer), replacing leaking valves, and performing annual system flushes to remove sludge buildup.
High-Efficiency Combi Upgrade
If repair no longer makes financial sense, a compact combi boiler can provide space heating and domestic hot water from one appliance. See how we assess, size, and plan a boiler or combi-boiler installation.
Radiator Valve & Leak Repair
A leaking valve can ruin your hardwood floors in minutes. We stock specialized radiator keys, air vents (bleeder valves), and thermostatic repair kits to stop leaks and ensure every room in your house gets equal heat.
In-Floor Heating (Radiant)
Nothing beats the feeling of a warm floor on a winter morning. We design and troubleshoot hydronic radiant floor systems for basements, bathrooms, and driveway snow-melts. If your zones aren't firing correctly, we have the diagnostic tools to find the blockage or electrical fault.
Brands We Service
We service the major hydronic equipment found in Toronto homes:
- Navien: Our primary line for new combi-boiler and tankless installations.
- Mitsubishi Electric: Where a heat pump or ductless solution makes more sense than a boiler upgrade.
- Rheem: For tank water heaters paired with a hydronic system and combination boiler/tank setups.
On the service side we are fully licensed to repair and maintain most major makes and models — including Viessmann, NTI, Bosch, Weil-McLain, IBC, Buderus, and older atmospheric boilers.
How We Handle Your Boiler Service
- The Diagnostics:We don't just guess. We check the expansion tank pressure, the aquastat settings, and the circulation pump performance.
- The Flush:Hydronic systems build up ‘magnetite’ (sludge) over time. We use specialized cleaners to flush the lines, improving heat transfer and protecting your pump.
- The Solution:Whether it's a simple thermocouple replacement or a new heat exchanger, we explain the costs upfront — no surprises.
Serving Boiler Homes Across the GTA
While we service the entire region, our expertise is deepest in neighbourhoods with older housing stock and hydronic systems.
Looking after a retail, office, mixed-use, or other business property? See our separate commercial boiler repair service so we can prepare for the building and equipment involved.
Is Your Boiler Making Noise?
Banging, hissing, or gurgling isn't normal. Let's get your system running silently again.
Contact HR Mechanical
Book service or request a quote.
Requests route directly to HR Mechanical so we can follow up about your service needs.