AJ Furnace & Air Conditioning is Calgary’s trusted HVAC expert for residential properties. We specialize in furnace installation, repair, and maintenance, air conditioning, heat pumps, and duct cleaning. We carry top brands including Lennox, Daikin, Goodman, and Tosot — and we price match all Lennox heat pump, AC, and furnace quotes. Financing options available. Serving Calgary homeowners and businesses with fast, reliable service. Get your free quote today! Why Choose Us: Years of Expertise in Installing & Repairing. Guarantee Services Certified Professionals.