My name is Debbie Davidson, and I am the head customer service specialist. It will be my pleasure to answer your calls and to help you with all your questions or needs you may have! Whether you need a bid request for new equipment, scheduling your service appointment, or walking you through changing the batteries in your thermostat. Yes, there are batteries in most thermostats! Ultimately, it would be my pleasure to guide you through the whole process. I can't wait to get a call from you!