About Us ACCORD AIR SYSTEMS has a good level of experience in the environmental control field. We are H.V.A.C contractors with design, install, commission and maintenance capability in most types of warm air and radiant, gas & oil heating, ventilating and air conditioning systems. Our experience involves over 30 years in the H.V.A.C trade. We specialise in energy efficient systems & take pride in obtaining our clients the 'best buy' in the market at all times. We are registered with REFCOM & the Environment Agency, with appropriate licences held Members of the Air Conditioning & Heat Pump Institute Members of the Federation of Small Businesses.