HVAC TRADE · COMMERCIAL HEATING
Commercial heating — thermal comfort guaranteed
Heating is an essential element in the comfort of your occupants and the longevity of your buildings. Whether you need a new installation or a complete replacement on a project anywhere in Canada, or regular preventive maintenance in Quebec and Ontario, Kolostat brings recognized expertise to ensure reliability and energy efficiency — resilient, high-performance boiler plants, hydronic distribution, heat-pump integration, and controls.
Trusted by
- 2,000+
- Projects deliveredAcross Canada since 1927.
- 24/7
- Emergency dispatchA fleet of 25+ service trucks covers heating around the clock — Greater Montréal and the GTA.
- Nearly 100
- Years of heating expertiseFounded in 1927 as a Quebec heating contractor — leader in the HVAC industry for nearly a century.
What we do for commercial heating
Boiler plants, hydronic distribution, heat-pump integration, controls
The commercial heating scope under one delivery team — designed and installed on projects across Canada, and serviced and tuned in Quebec and Ontario.
Boiler plants
Resilient, high-performance boiler plants — design, installation, replacement, and service. Whether the building needs preventive maintenance, a complete replacement, or a new installation, we engineer the plant for reliability and energy efficiency.
Hydronic distribution
The hot-water distribution side of the heating scope — maintained, repaired, and adjusted by our specialized team alongside the boiler plant it serves. Engineered, installed, and integrated under one mechanical contract with our commercial piping trade.
Heat-pump integration
Heat pump solutions integrated into the heating system, where applicable, to maximize financial assistance and reduce heating costs over the long term — our proven path to optimizing operating costs on commercial heating plants.
Controls and monitoring
Heating-plant controls tuned by the same team that maintains, repairs, and adjusts the system — integrated with the BMS on Automated Logic / WebCTRL® where applicable, so drift is caught before it becomes a breakdown.
Connected services
Where commercial heating connects upward
Heating rarely lives alone. It is one trade inside a broader design-build or maintenance scope — and it is the trade most often touched by decarbonization and grant work.
Commercial HVAC design-build
When heating is part of a full mechanical scope — boilers, hydronics, AHUs, controls, commissioning — under one contract. Heating sits inside the broader design-build delivery.
Commercial HVAC preventive maintenance
In Quebec and Ontario, maintenance contracts cover the heating scope — in-depth inspections, regular adjustments, and rigorous monitoring on the cadence that fits your asset mix. The right home when heating is part of a broader maintenance scope rather than a one-off intervention.
Commercial heat pump retrofit
When the right path is electrification — aerothermal, geothermal, air-to-water, or hybrid (dual-fuel) — retaining the existing boiler as cold-snap back-up. Heating costs reduced over the long term, with, in Quebec, grant capture stacked in.
HVAC controls optimization
Sequence-of-operations tuning for the heating plant — the layer that turns a well-installed boiler plant into a well-running one.
Grants & financing — Énergir, ÉcoPerformance, Hydro-Québec
Boiler replacement and heating electrification are eligible measures across multiple Quebec programs. Our Energy division files the dossier so the project is designed around grant capture, not after.
How we work
Four steps from first call to monitored performance
Assess existing system
Senior technician or engineer walks the heating plant, distribution, and controls. We document the equipment list, age, operating state, and the operational risk if it fails.
Engineering proposal
Replacement, retrofit, or service. We model the options — including heat pump integration where the math supports it — and price each with full transparency on cost and grant eligibility.
Install or service
Execution by our in-house team — engineers, designers, draftsmen, control technicians, project managers, and millwrights. In Quebec and Ontario, service calls and full installs run through the same delivery org.
Commission & monitor
Commissioning, controls calibration, and (where applicable) BMS / WebCTRL® monitoring with proactive alerts. A preventive maintenance program is offered in Quebec and Ontario to extend the life of the equipment from day one.
Commercial heating FAQ
What property and facility teams ask before they engage
What fuel types do you work with for commercial heating?
Natural gas (high-efficiency and condensing boilers), electric (resistance and heat pump), and dual-energy / hybrid configurations where a heat pump is the primary heat source and the existing gas plant is retained for cold-snap back-up. We are technology-neutral — the right fuel mix comes out of the engineering proposal, not the catalog.
Are there grants for boiler replacement and heating electrification?
In Quebec, yes. Énergir runs efficiency incentives that include boiler replacement; ÉcoPerformance funds up to 75% of eligible project cost for GHG-reduction measures; Hydro-Québec adds rebates on the electrification side. Kolostat's Energy division files the analysis and implementation components so the project is designed around grant capture. See our Énergir rebate page for the specifics.
Do you handle service-only work, or only full replacements?
Both. In Quebec and Ontario, service calls, planned repairs, and preventive maintenance contracts run through the same delivery org as full boiler-plant replacements; replacements and new installations are delivered across Canada. Most clients start with one and grow into the other — a service call diagnoses a plant problem, an engineering proposal scopes the replacement, and a maintenance contract keeps the new plant running.
Can we keep the existing boiler as back-up to a heat pump?
Yes — that is the hybrid (dual-fuel) configuration. The heat pump becomes the primary heat source, the existing boiler is retained for cold-snap back-up, and the controls automate the switchover at the marginal-cost crossover. In Quebec, this configuration may be eligible for Énergir and Hydro-Québec dual-energy support; the available measures and amounts depend on the current program rules and the building.
How fast can you respond to a heating outage in winter?
One dispatch number: 514-333-7333, option 1, 24 hours a day, 7 days a week. A fleet of 25+ service trucks covers heating across Greater Montréal and the GTA. Contract clients route ahead of one-off calls. Specific response targets are defined per contract based on building criticality and geography.
Request a quote
Tell us about your project
Submit right here — a Kolostat engineer will follow up to scope the work. Email and phone are required.