Commercial Packaged Rooftop Units in Toronto & the GTA
Air Dynamic Solutions delivers commercial packaged rooftop units services covering new RTU installation, planned replacement, refrigerant circuit management, and structured maintenance programs for the GTA and Ontario buildings. Our technicians conduct a thorough rooftop mechanical audit and then execute a precisely coordinated installation or service engagement, helping keep your facility’s operations smooth.
Complete Rooftop HVAC System Delivery and Year-Round Building Comfort
Our rooftop package unit installation and maintenance comply with TSSA regulations, Ontario Electrical Safety Code requirements, and manufacturer start-up protocols. Our technicians help bring your rooftop systems into full operation. They verify refrigerant charge and airflow distribution, and coordinate the entire work around your facility schedules. We serve office buildings, retail centers, automotive dealerships, hotel properties, logistics warehouses, and institutional campuses.
- 20+ years of commercial rooftop HVAC experience
- Certified in gas, refrigeration, and electrical disciplines
- Exceptional Tonnage-matched replacements
- Smooth work around occupied building schedules
- Complete documentation and Start-up reports
Our Menu
Trusted by fast growing companies
Packaged Rooftop Unit Audit, Installation, and Performance Management
Rooftop Survey & Equipment Matching
Our technicians carry out a structured rooftop survey covering curb dimensions, weight-bearing capacity, and gas and electrical supply conditions. They also analyze existing ductwork connections before any equipment is specified. We match each RTU to the building’s actual thermal demand so the selected unit operates within its designed efficiency range.
Installation, Rigging & Startup
Our process covers everything from crane coordination and curb setting to refrigerant circuit commissioning and controls integration. After mechanical completion, we perform a full factory-prescribed startup procedure, including recording supply air temperatures, refrigerant superheat and subcooling, external static pressure, and gas valve operation at all stages.
Refrigerant Circuit & Controls Integration
Our technicians address charge verification, leak detection, and the calibration of building automation system points that govern unit staging, economizer operation, and demand-controlled ventilation. We configure thermostat and DDC sequences to align with the building’s occupancy profile, supporting the RTU modulates capacity in response to actual zone demand.
Planned Maintenance & Seasonal Readiness
We structure our rooftop unit maintenance programs around two critical transition points in the Ontario climate cycle. One is pre-cooling season preparation in spring, and the second one is heating readiness verification before the onset of cold weather. Each visit checks coil condition, clears drains, replaces filters, inspects belts and bearings, and runs a full cycle test.
Why Choose Air Dynamic Solutions for Packaged Rooftop Unit Services?
Cross-Licensed Capability
Our technicians hold Gas Fitter licensing, Refrigeration certification, ESA licensing, Red Seal endorsement 313A, and TSSA certification under a single mobilization.
Replacement Planning
We assess RTU fleet condition across your properties and create a prioritized replacement schedule based on age, failure history, and refrigerant type.
Flexible Service Structures
We offer RTU solutions through outright purchase, monthly financing plans, and rental arrangements to align with your organization’s capital planning requirements.
One Provider, All Systems
Our team manages the full scope of services for the clients, working across multiple Ontario locations with coordinated scheduling and standardized reporting.
FAQs
The process is based on a detailed heat load calculation that considers floor area, ceiling height, insulation, window-to-wall ratio, and solar exposure. It also accounts for internal heat gains from occupants and equipment, along with local design temperatures.
It requires planning around crane access, roof membrane protection, tenant notification, and temporary heating or cooling provisions for affected zones during the changeover window. We coordinate with building management to establish a replacement sequence designed to maintain conditioning in occupied areas during the replacement process.
Regulatory changes governing hydrofluorocarbon refrigerants are progressively affecting equipment availability and servicing options for R-410A systems. Buildings operating older RTUs using phased-out refrigerant types face increasing parts and refrigerant sourcing constraints over time. We assess each facility’s refrigerant exposure and provide clear guidance on transition timelines.
It depends on whether the replacement unit shares the same footprint as the original equipment. Where dimensions differ, we install a curb adapter that bridges the existing roof opening to the new unit’s base dimensions, preserving the existing roof membrane penetration and avoiding a new curb installation.
Let’s Plan Your Next RTU Project Today
Reach out to our team to arrange a rooftop survey or discuss a replacement schedule. Our certified technicians are available 24/7 for urgent responses.