TRI-AIR Systems keeps commercial and industrial environments operating safely and efficiently. Established in 1980, services include HVACR Preventative Maintenance, HVACR Repairs, HVACR Replacement and Retrofit, Air Quality & Gas Detection, and Kitchen Exhaust Repairs Service. Programs are tailored to equipment type and usage, with scheduled inspections, calibration, and reporting that help prevent downtime and extend asset life. Skilled technicians troubleshoot compressors, controls, and airflow issues, then recommend repair or retrofit options that improve reliability and energy performance. Air quality and gas detection solutions support compliance and protect occupants, while exhaust repairs restore capture and ventilation in high-demand kitchens. Expect clear quotes, documented results, and prompt scheduling. For dependable HVACR service, call 905-470-2424. Address: 391 Steelcase Rd W Units 14 & 15, Markham, ON, L3R 3V9, Canada