Commercial Rooftop Unit Service, Repair, and Installation in Toronto & GTA

Top 10 Frequently Asked Questions About Rooftop HVAC Units in Toronto

1. What is a rooftop HVAC unit and how does it work?
   A rooftop HVAC unit is a complete heating and cooling system installed on the roof of commercial or industrial buildings. It works by pulling in outdoor air, conditioning it through built-in heating or cooling components, and then distributing the air through ducts into the building’s interior. These systems are especially popular in Toronto for businesses that want to save indoor space and streamline maintenance access.

2. How often should a rooftop HVAC unit be serviced?
   Most rooftop HVAC units should be serviced twice a year — typically once in the spring and again in the fall. Regular HVAC maintenance ensures the unit runs efficiently throughout all seasons, reduces the risk of breakdowns, and helps avoid costly emergency repairs, especially in commercial settings where comfort is critical.

3. What does rooftop HVAC maintenance include?
   A typical rooftop HVAC maintenance service includes a full system inspection, air filter replacement, coil cleaning (both evaporator and condenser), drain line cleaning, refrigerant pressure checks, thermostat testing, and clearing debris around the unit. This routine service keeps your system running smoothly and helps extend its lifespan.

4. How much does it cost to repair a rooftop HVAC unit in Toronto?
   The cost to repair a rooftop HVAC unit in Toronto varies based on the issue and unit size, but most common repairs range between $250 and $1,500. At Airtronic Heating & Cooling, we provide accurate diagnostics and upfront pricing to ensure you know exactly what to expect before work begins.

5. What are some common problems with rooftop HVAC systems?
   Commercial rooftop HVAC units may experience issues such as poor airflow, refrigerant leaks, dirty or clogged coils, blower motor failures, thermostat malfunctions, or electrical faults. These problems can reduce system performance and increase energy bills if not addressed promptly.

6. Do you offer emergency rooftop HVAC repair services in the GTA?
   Yes, we provide 24/7 emergency rooftop HVAC repairs across Toronto and the Greater Toronto Area. Whether it’s an urgent breakdown during business hours or after-hours service, our team responds quickly to restore comfort and avoid disruptions to your operations.

7. Can you install a new rooftop HVAC unit for my commercial property?
   Absolutely. We offer full-service rooftop HVAC installation, including system design, equipment selection, crane coordination, professional installation, and performance testing. Our team works with businesses of all sizes across the GTA to ensure the new HVAC system is energy-efficient and built to last.

8. What are the benefits of having a rooftop HVAC maintenance plan?
   A maintenance plan for your rooftop HVAC unit helps lower operational costs, improve energy efficiency, and extend the life of your equipment. It also ensures your business avoids unexpected downtime by catching small issues before they turn into major repairs.

9. Which rooftop HVAC brands do you service and install?
   We work with all major HVAC manufacturers including Carrier, Lennox, Trane, York, Daikin, and more. Whether you need repairs, maintenance, or installation, our technicians are trained to handle a wide variety of systems to meet your building’s specific needs.

10. How do I know when it’s time to replace my rooftop HVAC unit?
    If your rooftop unit is over 15 years old, needs frequent repairs, struggles to maintain indoor temperature, or causes rising energy bills, it may be time for a replacement. Our team can perform a full system assessment and help you decide whether repair or replacement is the better long-term investment.