Our teams in Aurora, Ottawa and Hamilton service, repair and supply parts for industrial, commercial and institutional boilers across Ontario. All three offer 24/7 emergency response, and rental boilers when a plant can’t wait.
Three branches serve Ontario. Thermogenics in Aurora, founded in 1975, is the head office and Thermocoil factory, and covers Toronto, York, Durham and Central Ontario. Thermogenics Ottawa covers Eastern Ontario from Kingston east. Union Boiler, a Hamilton company since 1966, joined Thermogenics in 2025 and covers Mississauga, Halton, Niagara and west toward Sarnia.
Each team does the same core work: planned maintenance, emergency repair, parts and rental boilers. Call the branch closest to your plant, and that branch’s team handles the job. If the work needs a specialist, a part or a temporary boiler, the other branches back them up.
Thermogenics
Head office and Thermocoil factory. Known for start-up, commissioning and training, deaerators and thermal fluid support. Holds ASME S, U and H, and the National Board R stamp.
6 Scanlon Court, Aurora, ON L4G 7B2
905-727-1901
Thermogenics
Serves Ottawa and Eastern Ontario, Kingston east. Offers 24/7 emergency boiler repair, maintenance plans, steam trap surveys, parts and access to rental boilers.
2615 Lancaster Rd #3, Ottawa, ON K1B 4Z4
613-244-0633
Union Boiler
Part of Thermogenics since 2025. Services hydronic and steam boilers of all makes, with Patterson-Kelly certified technicians, piping and in-house welding. Holds TSSA and CWB certification.
163 Niagara St., Hamilton, ON L8L 6A8
905-528-7977
In Ontario, the Technical Standards and Safety Authority (TSSA) administers the Technical Standards and Safety Act, 2000. That includes the Boilers and Pressure Vessels regulation (O. Reg. 220/01), which covers design registration, inspection and certificates of inspection, and the Operating Engineers regulation (O. Reg. 219/01). Our teams prepare boilers for inspection and repair deficiencies.
TSSA
Technical Standards and Safety Authority
Processing plants in the GTA and Southwestern Ontario use steam for cooking and sanitation. A boiler outage stops the production line.
Hospitals, universities and government buildings need steam and hot water all winter. Our teams schedule maintenance around occupied buildings.
Auto assembly plants in Oshawa, Alliston, Cambridge, Windsor and Brampton rely on process steam and building heat. Our teams service boilers of all makes.
Industrial plants from Hamilton to Sarnia call on Union Boiler for boiler service, combustion and controls work, and process and gas piping.
Call the branch nearest your plant. Aurora covers Toronto, York, Durham and Central Ontario. Union Boiler covers Mississauga, Halton, Niagara and west toward Sarnia. Ottawa covers Eastern Ontario.
Before the inspector arrives, our team services the boiler and tests its safety devices, including low-water cutoffs, flame safeguards and relief valves. We also repair any deficiencies the inspection turns up.
All three Ontario branches arrange rental boilers for shutdowns through the Thermogenics containerized fleet and partner inventory. A rental can also cover a breakdown, a retrofit or a seasonal peak.
Book a fall tune-up with combustion analysis, plus checks on condensate return and freeze protection, before the heating season. Toronto’s January design temperature is about -20 °C and Ottawa’s is about -25 °C, and boiler load peaks in those months.
Office: Aurora 905-727-1901, Ottawa 613-244-0633, Union Boiler 905-528-7977. Emergency service runs 24/7 at all three.
Request emergency service online