At Lex Air Conditioning and Heating, we specialize in the unique needs of Frisco HVAC equipment and air conditioning services. Heating and air conditioning equipment in Frisco often endures significant wear and tear, with always-on cooling air conditioning frequently switching to reliable heating during a winter night when cold fronts move through northern Texas. Systems older than 15 years become especially strained and begin to cost more money for users and homeowners to maintain than the purchase of a replacement system would.