Paul's Heating & Air Conditioning works on home heating and cooling in Los Angeles. Customers call when an air conditioner blows warm air, a furnace stops, or a thermostat quits. Kevin has talked through simple checks by phone, then come out to replace thermostat batteries, change a furnace filter, or fit a new thermostat. One home needed a new air conditioner and two new heads on a hot day; the install finished that afternoon and the house was cool before evening. Others describe a furnace cleaned and checked, with tips for the furnace and the air exchanger, and a repair that got the heat working again. People mention visits on time, a polite manner, and jobs finished quickly.