Homecare inspection 4 systems. Checked electrical components, checked refrigerant pressures, checked safeties, checked delta t, flushed and cleared drains, cleaned flame sensors, checked blower wheels and cabins, replaced customer supplied filters and 1 inch filter, tested heating and cooling operations at thermostat. Found low refrigerant levels for new Rheem system we put in, added a few oz of r410a to get levels up to normal. Found low refrigerant pressures for upstairs ac system, no wet switch for main floor furnace. Quoted repairs, customer opted in to add 2 lbs of refrigerant to upstairs system and add wet switch to main floor. Made repairs, tested operation, tested safety switches again, everything working properly at this time.