The purpose of a central heating system is to keep a building's interior warm. Central heating systems are more energy-efficient, quieter, and cost-effective (over time) than traditional heating systems. Before approaching a Central Heating and Cooling Inc heating repair expert for central heating installation, you should be aware of the prevailing market rates. Expect to invest $6,000-$8,000 to install a gas central heating system if you have decent pre-existing ducting. On the other hand, if the job entails renovating and opening walls, attics, ceilings, or crawl spaces, the cost will range from $10,000 to $14,000. If you wish to use zone heating or a customized thermostat, the total cost will go up much more.