Licensed & Insured HVAC professionals serving the Greater Toronto Area with quality heating and cooling solutions. 24/7 emergency service available.
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895 Don Mills Rd., Toronto, ON
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Imperial Heating is your authorized Unilux HVAC partner for condos, high-rise buildings, hotels, and hospitality properties across Toronto and the GTA. We install, retrofit, and service all Unilux systems — from the original Version A units (1972) to the latest Version 4.
Unilux: Canadian-made in Woodbridge, Ontario since 1972. Over 500,000 units installed across North America in condos, apartments, hotels, and assisted-living buildings.

Unilux vertical stack systems are the industry standard in condos, high-rises, hotels, and hospitality buildings across the GTA. Whether your building needs a new installation or a full retrofit of aging units, Imperial Heating handles it all.
Retrofit and replacement of vertical fan coils and heat pumps in residential towers across Toronto.
Quiet, efficient Unilux systems for guest comfort. 4-pipe fan coils for year-round heating and cooling in every room.
Low-maintenance, whisper-quiet HVAC for hospitality properties where guest experience is everything.
Reliable, easy-to-maintain Unilux systems for senior residences and care facilities.
Unilux has been the industry leader in vertical stack HVAC manufacturing since 1972. As the only Canadian-owned vertical stack manufacturer, their systems are trusted by property managers, building developers, and condo boards across North America.
Designed and manufactured in Woodbridge, Ontario. The only Canadian-owned vertical stack HVAC manufacturer — supporting local jobs and the Canadian economy.
Unilux systems are engineered for peak energy performance. Their heat pumps and fan coils reduce energy consumption and lower utility bills while keeping your home comfortable year-round.
Over 500,000 homes across North America rely on Unilux HVAC systems. Five decades of proven reliability, low maintenance, and consistent performance.
Unilux systems are designed for minimal upkeep. High-performing equipment that runs quietly and reliably, reducing long-term ownership costs.
All Unilux heat pumps are ETL listed and AHRI certified, meeting the highest North American safety and performance standards.
Engineered for whisper-quiet performance. Unilux fan coils and heat pumps operate with minimal noise, ideal for bedrooms, living spaces, and condos.
Imperial Heating installs and services the full range of Unilux HVAC products for residential homes and high-rise buildings across Toronto and the GTA.
Conventional closed water loop heat pump system that efficiently harnesses constant water temperature to provide both heating and cooling for residential spaces.
A closed loop system that extracts heat from the earth to provide heating and concentrates heat from the suite back into the earth to provide cooling — the most energy-efficient option available.
Combines the cooling power of a refrigerant compressor and DX coil with the heating efficiency of a hot water coil connected to building-wide risers and boiler systems.
Provides year-round heating, cooling, and ventilation. The industry standard for high-efficiency residential comfort with individual zone control.
A cost-effective option for buildings with centralized heating and cooling changeover. Reliable performance with a simpler piping configuration.
Combines DX cooling with hydronic heating for year-round comfort. Less in-suite noise and reduced building energy costs compared to traditional 4-pipe systems.
Unilux has been manufacturing vertical stack HVAC systems since 1972. If your condo, hotel, or building has a Unilux system from any era, Imperial Heating can retrofit, repair, or replace it. We work with every version ever made.
The first Unilux vertical fan coil units installed in Canadian high-rises. Many Version A units are still found in older Toronto and GTA buildings built in the 1970s.
Retrofit available — upgrade to modern efficiency
A major redesign that became the backbone of Toronto condo HVAC throughout the 1980s. Many condos and hotels built during this era are now 30–45 years old and prime candidates for retrofit.
Retrofit available — most common retrofit we perform
The start of the modern Unilux lineup. Improved efficiency, quieter operation, and better build quality. Found in condos and buildings from the mid-1990s onward.
Service, maintenance & upgrades available
Enhanced performance with updated coil designs and improved airflow. Installed in many GTA condos, hotels, and hospitality buildings from the 2000s.
Service, maintenance & upgrades available
Further refinements with ECM motor options and improved energy efficiency. Common in newer Toronto condos and hotel renovations.
Full installation & service available
The latest Unilux systems with high-efficiency ECM motors, closed-cell insulation, Wi-Fi connectivity, and the quietest operation ever. The gold standard for new builds and retrofits.
New installation & retrofit target unit
No problem. Our technicians can identify your Unilux version on-site and recommend the best retrofit or replacement path. We work with every generation — Version A through Version 4.
As an authorized Unilux HVAC partner, our licensed technicians are trained on every Unilux version from the 1972 Version A to the latest Version 4. Whether you manage a condo building, hotel, or hospitality property, we deliver factory-backed installation, warranty support, and 24/7 emergency service.
Your Unilux installation is backed by both the manufacturer warranty and Imperial Heating's satisfaction guarantee.
Our team is trained on every Unilux generation — Version A through Version 4. We know the quirks of each era and the best retrofit path for your building.
Unilux system issue at 2 AM? We're available around the clock. Call (647) 852-2359 anytime.
Thousands of units retrofitted in condos, hotels, and high-rises across the GTA. We know Toronto buildings and which Unilux solution fits your property.
Common questions about Unilux versions, retrofits, and building HVAC service.
We retrofit and install Unilux systems in condos, high-rises, hotels, and hospitality buildings throughout Toronto, Scarborough, Mississauga, Markham, and all GTA communities.
Whether your condo, hotel, or building needs a full Unilux retrofit or a single unit replacement, our team will assess your property, identify the Unilux version, and provide a no-obligation quote.