OT Heating, Cooling and Ventilation is a trusted HVAC company based in Durham serving Bruce, Grey, Dufferin, Wellington, Perth and surrounding areas. They specialize in installation, maintenance, and repair of all brands of heating and air conditioning systems including furnaces, heat pumps, water heaters, pool heaters, gas lines and indoor air quality solutions like HRVs and humidifiers. With licensed technicians who continuously update their skills to stay current with industry standards they prioritize customer satisfaction by offering professional services at reasonable prices backed by warranties. They also provide 0% interest financing for 6 months to help customers save on home comfort costs along with 24-hour emergency service availability making them a reliable choice for both residential and commercial clients seeking quality HVAC solutions that ensure comfort peace of mind throughout the year.