Commercial HVAC
Commercial HVAC Service, Maintenance and Replacement
Commercial HVAC systems operate across changing loads, occupancy patterns, weather, control strategies, and equipment lifecycles. TDG supports clients with experienced technicians, disciplined preventative maintenance, responsive diagnostics, and replacement planning. And when needs extend beyond routine maintenance, TDG delivers stand-alone HVAC equipment replacement and upgrade projects from scope design through completion.
Commercial HVAC Capabilities
Preventative maintenance: Recurring inspection and service programs.
Diagnostics and corrective repair: Troubleshooting for temperature variation, airflow issues, electrical and control faults, drainage problems, abnormal operation, and equipment failure.
Heating and cooling equipment: We service rooftop units, split systems, heat pumps, variable-refrigerant systems, air-handling equipment, chillers, and boilers.
Ventilation and air-distribution systems: Service for fans, motors, belts, dampers, coils, filters, exhaust, duct-related conditions, and more.
Hydronic and supporting systems: Service coordination for pumps, valves, piping, heat-transfer components, and related equipment.
Equipment replacement and capital projects: Assessment, scope development, budgeting support, installation, and transition into ongoing maintenance.
Experience Across Systems and Brands
Commercial portfolios rarely rely on one equipment type, control environment, or manufacturer. Our approach is built for mixed-system facilities and multi-site portfolios.
Licensing, certifications, and technical training
We assign experienced technicians with applicable trade licensing, refrigerant-handling certification, safety training, and manufacturer or system-specific education, matched to the equipment, the work, and the jurisdiction.
Multi-brand equipment and evolving technologies
Our technicians support major commercial brands and legacy systems using model-specific documentation and manufacturer guidance, and service conventional, high-efficiency, variable-speed, communicating, and controls-enabled equipment rather than treating every system as identical.
Controls coordination and asset decisions
Our HVAC and Integrated Controls teams work together when performance involves schedules, sensors, setpoints, alarms, or building-automation interfaces. We organize condition, service history, reliability concerns, parts availability, and operational impact so you can make an informed repair-versus-replace decision.
HVAC preventative maintenance should create visibility into equipment condition, recurring concerns, corrective needs, and seasonal readiness.
We connect scheduled work with centralized work orders, asset records, repair history, and capital planning, so you have a clear picture of system needs over time.
Frequently Asked Questions
How often should commercial HVAC receive preventative maintenance?
Most commercial systems are serviced on a seasonal or quarterly cycle, with filter and inspection intervals set by equipment type, runtime, and site conditions.
When should commercial HVAC equipment be replaced instead of repaired?
The decision usually turns on age, repair frequency, parts availability, efficiency, and the operational cost of a failure.
What commercial HVAC systems does TDG service?
Packaged rooftop units, split systems, heat pumps, variable-refrigerant systems, air-handling equipment, chillers, and boilers.
Does TDG service multiple locations under one HVAC program?
Yes. Multi-site HVAC programs run through centralized work order management and account coordination.
Talk with an HVAC Partner
Connect with us about recurring maintenance, a current system condition, equipment replacement, controls coordination, or an upcoming capital need.
