Miles SinclairBy Miles Sinclair

Updated November 2026

The cost to replace a kitchen faucet depends mostly on three things: whether you do the work yourself, the type of faucet you choose, and whether your sink and supply lines can be reused as-is. This guide walks through each factor so you can estimate your own project and decide where to spend or save. Budget and mid-range options differ mainly in finish and features, not in the basic installation work.

Break Down the Main Cost Factors

Most of the total comes from three line items: the faucet itself, labor, and any parts you need to replace along with it. A basic single-handle faucet is the simplest case, while pull-down heads, touchless sensors and wall-mount designs add complexity. Owners often report that the surprise expense is not the faucet but the shutoff valves or supply lines that corrode during removal.

Shopping for one? See our guide: 6 Best Prices to Replace Kitchen Faucet (2026): Our Picks.

  • Faucet type: Single-handle models are the simplest. Two-handle, pull-out and touchless designs need more time and sometimes a different sink hole setup.
  • Sink holes: A one-hole faucet on a single-hole sink is straightforward. Three-hole layouts with separate spray or soap dispenser holes may require a deck plate or hole cover.
  • Supply lines and shutoffs: Old stainless braided lines are often reusable, but aging angle stops can crack when turned.
  • Labor: A licensed plumber typically charges by the hour or by the job, and rates vary by region.

Compare DIY and Professional Replacement

Doing the job yourself removes labor from the total, which is why many homeowners choose it for a standard faucet swap. You will need basic hand tools and a plan for shutting off water safely. If the faucet is a touchless model or requires new plumbing, a professional installation is often the better choice. Consult a licensed plumber if you are unsure about gas lines, electrical connections for sensor faucets, or the condition of your drain.

Estimating Your Own Project

Start by counting what you actually need to buy. Use this checklist to avoid a second trip to the store:

  1. Measure the sink hole spacing (one-hole, three-hole, or center-set).
  2. Check the existing supply lines and angle stops for corrosion or leaks.
  3. Note whether the drain assembly needs replacement.
  4. Decide whether a plumber will handle the install or you will do it yourself.
  5. Add a small buffer for plumber’s putty, a new basin wrench or a supply line if needed.

Plan for Hidden Costs

Hidden costs usually come from parts that fail during removal. Old compression fittings can seize, and a corroded shutoff valve may need full replacement before you can safely work. Plan for these before you start, so a simple swap does not become a multi-day job.

Scenario What Changes the Cost
Same sink, same hole layout Lowest effort; mostly faucet and labor
New hole layout May need a deck plate or drilling
Corroded shutoffs or lines Adds valve or line replacement
Touchless or electronic faucet May need a power source and extra setup

Common Mistakes to Avoid

  • Buying a faucet before measuring the sink hole layout.
  • Forgetting to shut off the water and relieve pressure before removing supply lines.
  • Ignoring the drain assembly, which can leak after a faucet swap.
  • Overtightening plastic nuts and cracking fittings.
  • Skipping a leak test after reconnecting water.

A basin wrench makes it much easier to reach mounting nuts in tight cabinet spaces. Plumber’s putty seals the base of the faucet and deck plate. Braided supply lines can replace old corroded hoses when you connect the new faucet.

  • A basin wrench helps you reach and loosen mounting nuts under the sink. View on Amazon
  • Plumber’s putty creates a watertight seal at the faucet base. View on Amazon
  • Braided stainless supply lines replace worn hoses during the install. View on Amazon

FAQ

Can I replace a kitchen faucet without a plumber?

Yes, a standard single-handle faucet on an existing sink is a common DIY job. Shut off the water first and follow the manufacturer’s instructions. Consult a licensed plumber if you find damaged plumbing or need new lines.

How long does a kitchen faucet replacement take?

Most straightforward swaps take one to two hours for a first-timer, though stubborn nuts or corroded fittings can extend that. Plan extra time if the sink hole layout changes.

Do I need to replace the supply lines when I replace the faucet?

Not always, but it is a good idea if the lines are old, stiff or showing corrosion. New lines cost little compared to a leak after installation. Check them for leaks once the new faucet is connected.

Conclusion

The cost to replace a kitchen faucet comes down to the faucet type, your sink layout, and whether you do the work yourself. Measure first, inspect the shutoffs and supply lines, and plan for small parts you may need. With a clear checklist, most homeowners can avoid surprises and finish the job in a single afternoon.

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Miles Sinclair

About Miles Sinclair

Miles Sinclair is part of our editorial team and reviews and edits our kitchen faucets & sinks guides, checking product details against manufacturer specifications and owner feedback.