Ozone Control Inc., has provided heating, ventilation and air conditioning service in Cambridge, Waterloo, Guelph, Kitchener and even as far as London and Mississauga. For more than 45 years, we've been the reliable choice for quality products and dependable service for your industrial, commercial and residential heating and cooling needs. We are TSSA-registered and insured and offer same-day service with available financing. more... See more text