GasFix came to fix my pool heater. I booked a time for the next day. They called to let me know that the appointment was on and would call me when they were to come. The call came during the window I booked and they came promptly. As usual, the tech was friendly (even in these strange times) and solved the problem quickly. The part was replaced, a few more checks to make sure everything worked and then off they went. This company has looked after me for several years. You will not regret working with them.