Today, Asamoah Heat and Air is the most preferred supplier of York heating and air conditioning equipment in Elk Grove. Setting the standard for over 19 years in home comfort, we want to be who residents and businessess alike turn to for all of your heating and air conditioning needs.Offering a full line of commercial and residential HVAC products, we at Asamoah Heat and Air have N.A.T.E. certified technicians that not only ensure quality installation but also make sure your York heating and air-conditioning products are operating as efficiently as possible. This all translates into you saving money.SMUD certified contractor. Hero Program.