When the first cold fronts of the year finally roar down from the north, many Texas consumers will turn on their heating systems for the season. Regular maintenance of your system will extend its life and discover any mechanical issues before they become expensive health and safety issues. The first step in hiring an air conditioning and heating contractor should be checking the TDLR website (www.tdlr.texas.gov) to make sure that they are licensed by the Texas Department of Licensing and Re ...