KINGERSONS - Your Coalton Read details and browse to buy for contract air conditioning repair, duct cleaning, installations and yearly maintenance. Manuals and submittals sheets on central air & heat units we sell at split heating and air units (ductless type) delivered straight to your doorstep. Typical delivery time from distribution warehouse is 1-5 business days depending upon products ordered, quantity and location of the shipping address. window heating and air units