General Plumbing Services Price List Water Heater InstallsStandard 50 Gallon Gas Water Heater Install, Price = $1,095.00. Standard 40 Gallon Gas Water Heater Install, Price = $1,029.00. Faucet InstallsOwner Supplied Kitchen or Lavatory Faucet Install starts at $229.00 (price does not include new angle stops &/or supplies). Toilet InstallsToilet Install = $349.00 Owner Supplied Toilet Install = $229.00. Price does not included adjustments to the flange or drain. Sewer Camera Sewer Camera Inspection = $290.00 for the first hour & $99.00 for every hour after that.