You wouldn't get a new car and think you’d never have to fill the tires, replace the oil or investigate odd noises. Your home comfort unit is similar to a car engine. It’s a machine with a motor, electrical components and even fuel. So, it’s essential to have an experienced technician complete yearly maintenance on your home comfort equipment in London. If not correctly kept up, even the best heating and air conditioning systems could run into problems and has decreased energy efficiency over the years.