The answer to 'average cost of faucet installation' is that the typical range for professional faucet installation can vary widely, usually between $150 to $500 or more. The cost is influenced by factors like the type of faucet, the complexity of the installation, whether any plumbing work is required, and your local labor rates.
For example, a simple sink faucet replacement may cost on the lower end, while installing a high-end kitchen faucet with custom plumbing could be on the higher end. The best way to get an accurate estimate is to get quotes from local plumbing professionals in your area.