CAME OUT FOR AN ESTIMATE ON EQUIPMENT. INSTALLED A 4T AND 3T HP FURNACE AND COIL, 10 YR. MADE SURE EQUIPMENT WAS INSTALL PROPERLY AND WORK AREA WAS CLEAN WHEN FINISH. CHECK CONDENSER COIL, THERMOSTAT, AIR FILTER, AIRFLOW, DRAINAGE, FREON LEVELS, COMPRESSOR DELAY SAFETY CONTROLS, AND ALL ELECTRICAL CONNECTIONS. BOTH UNITS ARE RUNNING GREAT.