Faucet Installation Cost Factors
Updated February 20, 2026
Faucet installation is one of the more straightforward plumbing jobs, but the cost varies depending on access, condition of existing connections, and whether you're replacing like-for-like or changing the configuration. A simple swap on good supply lines takes under an hour. A faucet change that requires new shut-off valves and supply lines takes longer and costs more.
Overview
Faucet installation is one of the more straightforward plumbing jobs, but the cost varies depending on access, condition of existing connections, and whether you're replacing like-for-like or changing the configuration. A simple swap on good supply lines takes under an hour. A faucet change that requires new shut-off valves and supply lines takes longer and costs more.
Cost Breakdown
Pro Tips
- If hiring a plumber, supply your own faucet. Plumbers typically mark up faucet prices 20-40%. Buy it yourself and pay labor only.
- Ask the plumber to replace shut-off valves while they're under the sink. The incremental cost is small and the preventive value is high.
- Take a photo under the sink before the plumber arrives -- showing the existing setup helps them quote accurately.
- Schedule faucet installs during off-peak times. Emergency weekend rates can double the labor cost.
Mistakes to Avoid
- Paying a plumber $250 to install a $50 faucet. At that point, the labor costs more than the fixture.
- Not replacing old rubber supply lines during a faucet install. They're $10 each and prevent a future burst.
- Hiring a plumber without checking if the faucet matches your sink's hole configuration first.
- Assuming the big-box store install is the cheapest option. Independent plumbers often match or beat it.
When to Call a Pro
Call a pro if: the shut-off valves are seized and need replacement, the supply connections are corroded or non-standard, or you're changing from wall-mount to deck-mount. Otherwise, this is a solid DIY project.
Bottom Line
Standard faucet replacement labor: $150-$250. Add $50-$100 per shut-off valve if they need replacing. DIY saves the full labor cost and requires only basic tools. Always replace supply lines while you're at it.