Licensing through DOPL
Idaho's DOPL, the Division of Occupational and Professional Licenses, licenses journeyman plumbers, master plumbers and plumbing contractors statewide. DOPL also issues plumbing permits wherever a city or county has not taken on its own program, while larger cities such as Boise run local permit counters. Look up a plumber's DOPL license before letting anyone disconnect a gas line.
Groundwater, rivers and Idaho winters
Boise blends Boise River water with wells, and Meridian, Nampa, Idaho Falls and Pocatello lean heavily on groundwater that ranges from moderately hard to hard, especially across the Snake River Plain. Coeur d'Alene and Post Falls pump from the same aquifer that serves Spokane. Rural homes on private wells may also contend with sand or iron. Cold snaps from the Treasure Valley to Rexburg chill incoming water and threaten lines in garages and crawlspaces. Across Idaho, most repairs fall between $150 and $575, and swapping a gas tank generally costs $1,300 to $2,900, and our water heater replacement overview breaks down what that figure covers.