Commercial HVAC Rooftop Units Services
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Turning up the chill factor in your home or office
Our company, ONCALL Heating & Cooling, believes that comfort is an essential requirement rather than an optional luxury. Your space’s indoor climate remains perfectly positioned whenever you need it to be – safe, comfortable, energy-efficient, no matter which season is happening outside.
- Ventilation System Maintenance
- Indoor Air Quality Testing
- Cool Craft Custom Solutions
Smart, Space-Saving HVAC with Commercial Rooftop Units
Rooftop HVAC units serve as an established solution for efficient heating and cooling of large commercial facilities. The design of rooftop HVAC units enables them to manage large airflow volumes and different temperature requirements while preserving the essential indoor area. Our company, ONCALL Heating & Cooling, provides full commercial rooftop unit maintenance and replacement services throughout the GTA region.
We assist all business owners with choosing their perfect rooftop HVAC system that suits their space size requirements and zoning rules while meeting their efficiency targets.
Why Rooftop HVAC Units Are a Smart Choice for Businesses
Rooftop units (RTUs) function as independent heating and cooling systems which install directly on building rooftops. Your operations stay uninterrupted because the rooftop design saves indoor space and enables simple maintenance access.
The systems were designed to operate in all year-round conditions at their maximum capacity levels. You achieve full climate control capabilities through RTUs by selecting from available capacities and features such as humidity management, economizers, and air purification systems that minimize environmental impact. If you ever face a serious problem, our team will assess the issue and, if required, will provide rooftop unit replacement.
OnCALL partners with proven brands exclusively that deliver commercial buildings powerful and long-lasting solutions. The team evaluates your facility’s ventilation design together with its insulation and normal usage practices before selecting the appropriate unit. The installation process starts with the proper selection of the unit’s size which we couple with balanced airflow management and energy-efficient optimizations.
The team facilitates all aspects of assessment work for roof curbs with ductwork installation, electrical connections, and safety testing without requiring you to engage various contractors.
Other Services
- Rooftop Units
All Service Locations in Canada
Reliable Installation and Service from Start to Finish
The investment in rooftop units demands a correct installation during their initial deployment. The installation process at our company follows all applicable building rules and manufacturer guidelines to deliver safe, functional systems that maintain cleanliness standards. Our company work with efficiency and professionalism to keep disruptions low and respect project deadlines during commercial rooftop unit installation.
Your commercial rooftop unit maintenance needs will be supported by us through planned servicing, along with urgent repair capabilities after installation. Your business needs reliable comfort at all times, which we promise to maintain.
Contact ONCALL Heating & Cooling today for a no-obligation consultation and customized estimate.
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Frequently Asked Questions
Rooftop units save valuable indoor space, provide easy maintenance access, and deliver powerful heating and cooling for large facilities—all while keeping operations uninterrupted.
We handle everything from system selection and sizing to installation, ductwork, electrical connections, and safety testing. We also provide maintenance and repair support.
Our experts assess your building’s ventilation design, insulation, size, and usage patterns. This ensures you receive an energy-efficient unit that meets comfort and sustainability goals.
Yes—our experts assess your building’s size, layout, and usage patterns to recommend the perfect high-efficiency system. This ensures maximum comfort with minimal energy waste.
Absolutely. ONCALL Heating & Cooling provides no-obligation consultations and customized estimates so you can make the best decision for your business.