Houseguest and suddenly no heat! After two days of calling the big names in heating and not even receiving a call back, I looked for a fix online and saw that Just-in Time Heating had good comments. I called shortly after 8 a.m. and Justin (now I understand the name of the company) came, diagnosed the problem (potentially dangerous metal fatigue in the old wall heater), sourced a new unit, went to pick it up, and had it installed it by noon. When I discovered that the new thermostat was not working properly, Justin immediately returned, disassembled the thermostat, found the faulty connection and fixed it. If you have a heating problem and want prompt and conscientious service, I would highly recommend Just-in time. I will have them back for any future heating problem!