How to install a new faucet in your Longview home

Installing a new faucet in your Longview home takes one to two hours with basic hand tools, and most homeowners can handle the swap themselves. The job involves shutting off the water, disconnecting the old supply lines, setting the new faucet on the sink deck, and reconnecting everything leak-free. This guide walks you through the full process, the tools you actually need, what 2026 pricing looks like in Longview, and the point where calling a plumber saves you more than it costs.

What you need before you start

Faucet installation in Longview WA is a straightforward residential plumbing job that swaps out an old fixture for a new one, and it is needed when a faucet leaks, corrodes, or you are upgrading the look of a kitchen or bath. Before you crawl under the sink, gather everything in one place so you are not making three trips to the hardware store on Ocean Beach Highway.

Here is the short list:

• Adjustable wrench and a basin wrench (the basin wrench is the one tool that makes this job tolerable)
• Phillips and flathead screwdrivers
• Bucket and old towels for the water that will drain out of the supply lines
• Plumber's tape (Teflon) for threaded connections
• New faucet with supply lines and any adapters included
• Flashlight or headlamp because under-sink cabinets are dark
• Silicone caulk if the old base was sealed

Check the shut-off valves under the sink before you buy anything. If they are seized or weeping, that turns a one-hour faucet swap into a valve replacement, and you will want a plumber on standby. Most Longview homes built before 1980 still have the original gate valves, and those fail more often than the faucets themselves.

Step-by-step faucet installation

A clean faucet install follows the same six steps whether you are doing kitchen faucet replacement in Longview WA or swapping a bathroom fixture. Work slowly, and test for leaks before you put everything back in the cabinet.

1. Shut off the water and drain the lines

Close both shut-off valves under the sink. Open the faucet to release pressure, then disconnect the supply lines and let the remaining water drain into your bucket. Expect about a cup of water from each line.

2. Disconnect the old faucet

Use the basin wrench to reach the mounting nuts behind the sink bowl. Spray a little penetrating oil on rusted nuts and give it ten minutes. Cut the caulk line around the base with a utility knife if the old faucet was sealed down.

3. Clean the sink deck

Scrape off old caulk and mineral buildup. Longview's water is soft, but soap scum still hardens under the base. A clean surface means the new faucet sits flat and does not rock.

4. Set the new faucet and connect supply lines

Feed the faucet lines through the sink holes, then hand-tighten the mounting nuts from underneath. Wrap the threaded supply connections with plumber's tape and tighten them with a wrench, but stop before you crank down hard. Overtightening cracks fittings.

5. Connect the sprayer and drain if applicable

Kitchen faucets with a pull-down sprayer need the hose clipped to the weight under the sink. Bathroom faucets with a pop-up drain need the lift rod attached to the pivot rod.

6. Turn the water back on and test

Open the shut-off valves slowly. Run hot and cold for a full minute and watch every connection with your flashlight. If you see a drip, tighten that fitting a quarter turn. Dry everything, then check again in an hour.

If your shut-off valves leak when you turn them back on, that is a plumbing repair longview WA homeowners run into constantly with older fixtures. We replace those valves during a faucet install so you are not back under the sink in six months.

How much does faucet installation cost in Longview in 2026?

Typical 2026 pricing in Longview runs $150 to $350 for a standard faucet installation if you hire a plumber, plus the cost of the faucet itself. A basic kitchen faucet is $80 to $200. A mid-range pull-down model is $200 to $450. High-arc commercial-style faucets push past $600.

Doing it yourself drops the labor cost to zero, but budget $30 to $60 for tools if you do not already own a basin wrench and plumber's tape. If your shut-off valves need replacing, add $75 to $150 per valve.

Bathroom faucet installation longview WA pricing is usually lower because there is less hardware to connect. Expect $120 to $250 in labor for a standard two-handle or single-handle bath faucet.

Common mistakes to avoid

The mistakes that cause callbacks on faucet installation guide longview jobs are almost always the same handful, and every one of them is preventable.

• Overtightening supply connections. Snug plus a quarter turn is enough. More than that and you crack the ferrule or the faucet inlet.
• Skipping the basin wrench. Channel locks round off mounting nuts in tight spaces. The right tool costs $15 and saves an hour.
• Forgetting the sprayer weight. A pull-down hose without the weight under the sink will not retract, and you will think the faucet is defective.
• Not checking shut-off valves first. If they are stuck open or weeping, you will flood the cabinet the moment you turn the water back on.
• Leaving the old caulk ring. A new faucet on a dirty deck rocks and leaks at the base within a year.

One more: do not toss the old faucet until the new one has run leak-free for 24 hours. If a supply line is the wrong length or a fitting is missing, you will want the old parts for reference.

When to call a professional

Call a plumber for faucet installation in Longview when the shut-off valves are stuck, the supply lines are corroded, or the sink deck is cracked. Those three problems turn a DIY job into a water-damage repair if you force them.

We handle faucet installs across Longview every week, from older homes near Lake Sacajawea to newer builds out toward Mint Valley. If you are already hiring us for residential plumbing longview WA work, we will swap the faucet while we are there and check the valves at the same time.

If you are upgrading a kitchen, we can also handle the sink installation longview WA homeowners usually pair with a new faucet, so the drain and disposal line up correctly the first time.

Frequently Asked Questions

How do I install a new faucet in my Longview home?

Shut off the water, disconnect the old supply lines, remove the mounting nuts with a basin wrench, clean the sink deck, set the new faucet, reconnect the lines with plumber's tape, and test for leaks. The whole job takes one to two hours for a standard kitchen or bath faucet.

Can I replace a faucet myself in Longview WA?

Yes, if your shut-off valves work and the supply lines are in good shape. Most homeowners can handle a standard swap. If the valves are seized or the lines are corroded, hire a plumber because those repairs go beyond a simple faucet replacement.

How long does faucet installation take in Longview?

A standard faucet install takes 60 to 120 minutes. Kitchen faucets with pull-down sprayers and separate soap dispensers run closer to two hours. If shut-off valves need replacing, add 30 to 45 minutes per valve.

What tools do I need to install a faucet in Longview?

An adjustable wrench, a basin wrench, Phillips and flathead screwdrivers, a bucket, old towels, plumber's tape, and a flashlight. A basin wrench is the one specialty tool worth buying. Total cost for the tools is $30 to $60 if you do not own them.

Do I need a permit to replace a faucet in Longview?

No. Replacing a faucet is a fixture swap, not a plumbing system modification, so it does not require a permit in Longview. If you are moving supply lines or adding a new sink location, that changes and you should check with the city.

Get help with plumbing in Longview

If your shut-off valves are stuck, your supply lines are corroded, or you would rather not spend a Saturday under the sink, our team handles faucet installation longview WA homeowners trust to be done right the first time. We carry the parts, replace worn valves on the spot, and test every connection before we leave.

Call Longview Riverbend Plumbing at (360) 886-3111 to schedule your faucet install.