We have had numerous heating, cooling and plumbing companies in our home of the last 16 years. KB Complete starting servicing our HVAC about 3 years ago. Every change of season we have a tech service and maintain our furnace and A/C unit. They cover their feet, always polite and we won't be using anyone else. We trust that they won't over charge us on things that don't necessarily need to be done. (Like their competition has attempted to do with us) I highly recommend KB Complete!! THEY'RE THE BEST!!