Boiler Installation & Service

Boilers heat differently than forced-air furnaces — quietly, evenly, and often for decades when properly maintained. The Gravity Group installs, repairs, and services hydronic boiler systems for Ontario homes, from classic cast-iron radiators to modern combi units feeding infloor radiant heat.

Because boiler systems are less common than furnaces, they need a technician who actually understands hydronics — circulator pumps, zone valves, expansion tanks, and venting. Our team is trained on both legacy systems and the newest high-efficiency condensing boilers.

Whether your boiler is short-cycling, leaking, failing to reach pressure, or simply original to a much older home, we will give you a clear diagnosis and honest repair-vs-replace guidance — with financing available on qualifying replacements.

Swapping a boiler is not as simple as matching BTU output — piping configuration, venting, expansion tank sizing, and zone control all affect how well the new system performs. We assess your existing hydronic layout before recommending equipment.

Modern condensing boilers can dramatically cut fuel costs compared to older cast-iron units, often paying for a portion of the upgrade in energy savings over time.

Boilers pair naturally with radiant infloor heating, delivering some of the most even, comfortable heat available in a home. We design and install new infloor zones, or integrate additional zones into an existing hydronic system.