A faucet job looks simple from the outside. Turn off the water, disconnect the old unit, and put the new one in. In practice, the work ranges from a 45-minute swap to a half-day project depending on what’s under the sink, how old the connections are, and whether anyone cut corners during the last installation.
Prices in Seattle run higher than national averages. This guide breaks down what you’ll actually pay in 2026 – by job type, location in the house, and what drives the final number up or down.
Average Faucet Installation and Replacement Cost
Faucet installation cost in Seattle typically falls between $150 and $600 for a standard residential job. That range covers labor and basic materials like supply lines and mounting hardware. The faucet itself is separate unless your plumber is sourcing it for you.
Here’s a general reference for what Seattle homeowners are paying:
| Scenario | Typical Cost Range |
|---|---|
| Kitchen faucet installation | $150 – $450 |
| Bathroom faucet installation | $100 – $350 |
| Bathtub faucet installation | $200 – $600 |
| Shower faucet cartridge replacement | $100 – $300 |
| Outdoor faucet replacement | $150 – $400 |
| Pot filler installation | $300 – $800 |
Installation Labor Cost
Labor for a straightforward faucet installation in Seattle runs $100 to $250. That covers a plumber removing the old unit, fitting the new one, connecting supply lines, and checking for leaks once the water is back on. The job typically takes one to two hours.
Replacement Labor Cost
Faucet replacement labor cost typically lands in the same range as new installation – $100 to $300 – because the actual work is similar either way. The difference shows up when the old faucet has corroded mounting nuts, non-standard connections, or was put in by someone who made the next person’s job harder. In older Seattle homes, budget an extra $50 to $100 for that possibility.
How Much Plumbers Charge for Faucet Work
Labor-Only Pricing
If you’ve already purchased the faucet and just need someone to put it in, the cost to install a faucet, labor only, in Seattle will often fall roughly in the low hundreds, but the exact price depends on fixture type, access, and whether any valves or supply lines also need attention. It’s worth asking directly when you call.
One thing to confirm upfront: whether the plumber will install a fixture they didn’t supply. Some won’t, citing warranty concerns. Most will, but they’ll note they can’t guarantee the product itself – only the workmanship.
Hourly vs. Flat Rate Pricing
Seattle plumbers generally charge $120 to $180 per hour. Some use flat-rate pricing for common jobs like faucet swaps, which can work in your favor on straightforward installs but may cost more if the flat rate assumes a longer job than yours actually requires.
Flat-rate pricing gives you predictability. Hourly is better when the job is genuinely simple and you’re confident it won’t drag out. Ask which model the company uses before booking.
Service Call Fees
Many Seattle plumbing companies charge a trip or service-call fee – often starting around $75, sometimes reaching $200 – though some apply that amount toward the final invoice. On a single faucet replacement, this fee is a real part of the total. If you have two or three small things that need attention – a faucet, a valve that won’t turn, a running toilet – grouping them into one visit is a straightforward way to get more out of the call.
Installation Cost by Type and Location
Kitchen Faucets
The cost to install a kitchen faucet in Seattle runs $150 to $450 for a standard single or two-handle model. Pull-down and pull-out spray faucets take slightly longer to fit and align, which adds to labor time. If the faucet has a side sprayer, soap dispenser, or built-in filtration connection, expect to add $50 to $150 for the additional lines and fittings.
Kitchen faucet replacement labor cost stays toward the lower end of that range when the existing holes in the sink match the new fixture’s configuration. When they don’t – say, you’re switching from a three-hole setup to a single-hole faucet – the plumber needs to fit an escutcheon plate or deal with the extra openings, which adds time and a small materials cost.
Bathroom and Vanity Faucets
Bathroom sink faucet installation cost in Seattle typically runs $170 to $360. Pedestal sinks and wall-mounted vanities can add $50 to $100 because access to the supply connections is more restricted.
The cost to install a vanity faucet follows similar pricing but can go higher on vessel sink configurations, where the supply lines run up through the countertop and the faucet height has to be matched carefully to the basin. Budget $150 to $350 for those.
If you’re replacing a bathroom faucet and the shutoff valves under the sink haven’t been operated in years, a plumber will often recommend replacing them at the same time. That adds $50 to $150 but avoids a separate visit if one fails later. The full cost to replace a bathroom faucet – new faucet, supply lines, and valve replacements included – typically runs $250 to $500 in Seattle.
Showers and Bathtubs
Bathtub faucet installation cost in Seattle runs $200 to $600. The range is wide because the work varies significantly: a straightforward tub/shower faucet swap in an accessible wall takes two to three hours, while a job that requires opening the wall to access the valve body can run half a day or more.
Bathtub faucet replacement price on the higher end usually involves older homes where the existing valve is a non-standard size or the supply connections are galvanized rather than copper. Replacing like-for-like on a modern installation is faster and less expensive.
Shower faucet cartridge replacement cost in Seattle typically runs $200 to $400. The cartridge is the internal component that controls water temperature and pressure – it’s what wears out before the rest of the faucet does. Replacing it is usually a one-hour job if the valve body is in good shape, and it extends the life of the fixture without the cost of a full replacement.
Shower diverter repair cost – the mechanism that switches water flow between a tub spout and a showerhead – runs $80 to $250, depending on the type. A simple spout-mounted diverter is a quick fix. A three-way valve diverter inside the wall takes longer to access and costs more accordingly.
Outdoor Faucets
Outdoor faucet replacement cost in Seattle runs $150 to $400. The price depends on where the faucet is located and how easy it is to get to the shutoff valve inside the house. In Seattle, plumbers often recommend frost-free outdoor faucets because they offer better protection during cold weather, especially when an older spigot is already being replaced.
The average cost to replace an outdoor faucet ranges from $200 to $250 for a straightforward swap on an accessible exterior wall. Faucets located on the back of a house, through finished walls, or in crawl-space-adjacent areas take longer and cost more.
Outdoor Faucets (Pot Fillers and Wall-Mounted)
Pot fillers – the articulating faucets mounted on the wall above a range – are a different job entirely. Installing one requires running a dedicated water line to the wall behind the stove, which usually means opening drywall. In Seattle, pot filler installation runs $300 to $800, depending on how far the new line has to travel and how much wall work is involved. If you’re doing a kitchen renovation and the walls are already open, this is the right time to add one.
When to Repair or Replace a Faucet
Most faucets are worth repairing if the problem is a worn cartridge, a failed O-ring, or a leaking supply line connection. Those are relatively inexpensive fixes and the hardware is widely available.
Replacement makes more sense when the faucet body itself is cracked or corroded, when the finish is worn past the point of caring about, or when the fixture is old enough that replacement cartridges are no longer made for it. At that point, you are paying professional rates to maintain functionality.
A slow drip should be fixed promptly rather than ignored. A faucet dripping once per second wastes roughly 3,000 gallons a year – and if it’s under a cabinet, that moisture is working on the wood and the cabinet floor the entire time.
What Affects the Final Cost of Faucet Installation
A few things reliably push the price above the base estimate:
- Access. Older Seattle homes often have cramped under-sink spaces with supply lines running at awkward angles. Tight access takes more time, and time costs money.
- Condition of existing connections. Corroded shutoff valves, stripped nuts, non-standard pipe sizes – all of these slow the job down. Previous DIY work is a frequent source of complications.
- Fixture complexity. A single-handle faucet with two supply lines is a faster install than a faucet with a pull-out spray, integrated filtration, and a separate hot water dispenser.
Water pressure issues. If the new faucet reveals a pressure problem that wasn’t obvious with the old one, that’s a separate diagnostic job – not something that gets resolved as part of the installation.
How to Get an Accurate Estimate in Seattle
Phone estimates for faucet work are only reliable for the simplest jobs. A plumber who has actually looked at the shutoff valve condition, the existing supply line configuration, and the space available under the sink is going to give you a number you can count on. One who hasn’t is giving you a best-case scenario.
At Ben’s Plumbing, we provide written estimates after a proper on-site assessment – not ballpark figures that shift once the work starts. Most faucet estimates take 15 to 20 minutes to complete. If the job turns out to be more involved than it looked on the surface, you’ll know before the work begins, not after.
Seattle homes vary a lot in age and plumbing condition. A house built in 2015 and a house built in 1962 are completely different jobs, even when the faucet being installed is identical. Experience with the full range of Seattle residential plumbing is what keeps estimates accurate and surprises off the final invoice.
