In need of repair/replacement of a furnace, heat pump, boiler, water heater, geothermal unit or air conditioner, please call Stephen at 240 423 2597 or text or email: . We offer: $40 Residential Diagnostic Service Charge, $60 for Commercial Diagnostic Service Charge (except during severe inclement weather $100 for diagnostic) No extra charges for 24 hour emergency night/weekend services, rates are the always the same, no matter what hour of the day/night work is performed. We have appointments available in the evenings and weekends at no extra charge. Always affordable and competitive rates We warranty all service worked performed. Installation warranty on new equipment is 10 years parts and labor on all new gas furnaces 3 year warranty on gas boilers, heat pump and standard air conditioners. Price match guarantee. We will beat or match any written estimate from another competitor, and try not to break your bank account. We also sell new equipment to the general public with or without installation, please inquire if interested. Experienced HVAC technicians willing to assist you with your present and future needs. 24 hour emergency service available.