heat pumps, condensing unit and air-handling unit

water heater (gas/electric) 

split-type air conditioning

low pressure boiler

 pumps

 vacuums

 compressors

installation

repair

check and calibrate freon charge.

cleaning of condensing coil at outdoor unit (condenser)

cleaning of evaporating coil at indoor unit (air handler)

check and calibrate compressor current (amperes)

check and replace air filter

check condensing air temperature, incoming and outgoing temperature of indoor unit

check water heater thermostat

check water heater temperature-pressure relief valve

check water drain cock

check incoming and outoing water temperature