A.T. Furnace & Duct Cleaning is a Calgary-based HVAC cleaning company serving residential and commercial customers in Calgary and surrounding areas. Its certified technicians provide furnace cleaning, duct cleaning, air conditioner cleaning and maintenance, and dryer vent cleaning. For commercial clients, the company cleans ductwork and ventilation systems in offices, retail spaces, restaurants, and other buildings. It starts commercial projects with an on-site inspection to assess the system before preparing a quote.

A.T. Furnace says its services are designed to support cleaner indoor air, reliable airflow, and efficient HVAC operation. The company emphasizes professional equipment, clear communication, punctual appointments, and a no-upselling approach, and states that it is licensed and insured. It also offers same-day service and a satisfaction guarantee. Homeowners can request a free quote or book an appointment by phone. The company’s website features a limited-time furnace and vent cleaning offer, which includes one furnace, all vents, and sanitization. A.T. Furnace operates Monday through Saturday and is closed Sundays.