The answer to 'supply line installation cost' is that the cost can vary widely depending on several factors. In general, supply line installation can range from a simple DIY project costing a few dollars for the materials, to a professional job that may cost hundreds or even thousands of dollars. The main factors that influence the cost include the length and complexity of the supply line, the materials used, whether any structural modifications are required, and the labor costs in your local area.
For a basic supply line replacement, homeowners may be able to do the work themselves for under $50 in materials. However, if the supply line needs to be rerouted, extended, or connected to new fixtures, the cost can quickly escalate. Professional plumbers typically charge $75-$200 per hour, and the total project cost can range from $200 to $1,000 or more depending on the scope of work.