Reliance Heating, Air Conditioning & Plumbing is a comprehensive and top-rated HVAC company in St. Catharines, Ontario. They provide homeowners and businesses with a variety of installation and repair options. Common reasons customers call Reliance are for furnace repair, 24/7 emergency plumbing, and air conditioner repairs in St. Catharines. They also rent and sell new AC systems, furnaces, water heaters, and UV air purification systems. Learn more by visiting them online today!