We called on a Friday night at 6:15 to just leave a message for Monday. To our surprise, they answered and said they would send someone out in the morning for no charge. We were shocked. Chris arrived promptly as promised and realized it was just our thermostat we installed over summer. We didn't realize we had to set the heat settings differently for gas vs our electric air. He had it fixed within minutes and didn't charge us a penny. Yelp users get that wonderful benefit. Be sure to mention you saw them on Yelp. Now, I feel I'm a good judge of character. Chris was genuinely caring and honest. Our unit is almost 18 years old, so it's getting to be that time to do. Guess who we will be calling? Yep. Bell Air. Thanks!