Ask Your Question. Angie’s List Answers I think plumbers know how much it cost to install a water heater. My advice is and get estimates..The diagnostic fee will be credited toward the final cost of toist you with water heater repair Water Heater Installation Water Heater Repair .Rheem Water Heater Installation. Gas water heaters usually cost less to operate, but are slightly more expensive upfront and less efficient overall..HomeAdvisor’s Water Heater Cost Guide lists pricesociated with installing or replacing a water heater including labor and materials, as reported by .
Tank vs. Tankless. Average cost with installation Tank $. gallon tank .