HomeAdvisor’s Tankless Water Heater Cost Guide gives the average prices for electric and gas systems, installation, replacement, and maintenance as well as cost .How much should it cost to have a standard tank gas water heater installed? In , I paid $ to have one installed in Atlanta. I have read a few DIY boards .HomeAdvisor’s Water Heater Repair Cost Guide gives average national costs for large repairs and thermostat, thermocoupler, and valve replacement on electric, gas, and .How much replacing a water heater should cost. Average costs and comments from CostHelper’s team of professional journalists and community of users. With all needed .
Average cost with installation Tank $. gallon tank Tankless $, .Home Solution Center Plumbing How Much Does Water Heater Installation Cost? Installing a new water heater can be dangerous, so it s best to hire a licensed plumber. Typi.y a gallon natural gas water heater installation costs between $ and $,..Tankless heaters also tend to be much more expensive $ installed for a tank system and $, installed for a tankless system and can be more difficult to service. The energy savings average $ $ a year, but it still takes decades to make up the difference in the initial cost..