P J Johnston Heating & Air Conditioning is your premier HVAC contractor in Peterborough, ON. We specialize in providing top-notch heating and air conditioning services for both residential and commercial properties. Our team of experienced professionals ensures that your heating and cooling systems are operating at their best, delivering ultimate comfort and energy efficiency. Whether you need a reliable heating contractor, expert residential heating services, or trusted commercial air conditioning solutions, we've got you covered. Contact us today for exceptional HVAC services that exceed your expectations.