HVAC contractor in London, Ontario Hawana Contractors has over 20 years of experience providing top-notch installation and professional customer service. Our expert technicians offer prompt repairs and installation of air equipment, tankless water heaters, and smart thermostats with a 100% Satisfaction Guarantee. We provide energy-efficient systems and indoor air quality equipment to improve your comfort and save you money. We specialize in smart home automation. We can help you install a smart thermostat to control your HVAC system from anywhere, and we offer 24/7 emergency services. we understand that HVAC installation is a significant investment, which is why we offer the best equipment and materials at the best prices in the market.