How to Fix a Dripping Faucet (And When to Call a Pro)

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That slow, steady drip from your bathroom faucet might seem like a minor annoyance, but it adds up fast. A faucet dripping once per second wastes more than 3,000 gallons of water per year — and that shows up directly on your water bill. The good news? Many dripping faucets are a straightforward DIY fix. This guide walks you through the process step by step, and helps you recognize when it’s time to bring in a professional.

Why Faucets Drip in the First Place

Before you grab your wrench, it helps to understand what’s causing the problem. Most faucet drips come down to worn or damaged internal components. Over time, the constant friction and water pressure take a toll on the parts that create a watertight seal.

The most common culprits include:

• Worn O-rings — Small rubber rings that seal the stem of the faucet. These are especially common in cartridge and ball-style faucets.
• Deteriorated washers — Compression faucets use rubber washers that press against a seat every time you turn the water off. They wear out with repeated use.
• Damaged cartridge — Cartridge faucets (common in single-handle designs) can develop leaks when the cartridge itself cracks or wears out.
• Corroded valve seat — Sediment buildup can corrode the valve seat, causing leaks around the spout area.

Knowing your faucet type before you start will save you a lot of time and frustration at the hardware store.

Tools and Materials You’ll Need

For most faucet repairs, you won’t need anything exotic. Gather these basics before you start:

• Adjustable wrench or basin wrench
• Phillips and flathead screwdrivers
• Replacement washers, O-rings, or cartridge (specific to your faucet brand and model)
• Plumber’s grease
• Needle-nose pliers
• A small bucket or towel

Tip: Take a photo of your faucet before disassembling anything. It’ll help you put everything back together — and make it easier to find the right replacement parts at your local Tulsa hardware store.

Step-by-Step: How to Fix a Dripping Faucet

Step 1: Shut Off the Water Supply

This is the most important step. Look under the sink for the shutoff valves — one for hot, one for cold — and turn them clockwise until they stop. Then turn on the faucet to release any remaining pressure and water in the line. If you can’t find shutoff valves under the sink, you’ll need to shut off the main water supply to your home.

Step 2: Remove the Faucet Handle

Most handles are held on by a screw hidden under a decorative cap. Pop off the cap with a flathead screwdriver, remove the screw, and carefully pull the handle off. Be gentle — forcing it can crack the handle or damage the stem underneath.

Step 3: Access the Internal Components

Depending on your faucet type, you’ll see either a cartridge, a ball mechanism, or a stem with a washer at the end. Use your wrench or pliers to unscrew the packing nut and remove the stem or cartridge. This is where things get faucet-specific, so it’s worth pulling up your faucet’s manual or a YouTube tutorial for your exact model.

Step 4: Replace the Worn Part

Inspect the washer, O-ring, or cartridge for visible wear, cracks, or deformation. Replace any damaged components with exact matches. Apply a thin coat of plumber’s grease to new rubber parts before installing them — it extends their life and makes reassembly easier.

Step 5: Reassemble and Test

Put everything back in reverse order. Hand-tighten first, then snug it up with a wrench — but don’t overtighten, or you risk cracking the seat or stripping the threads. Turn the shutoff valves back on slowly and watch for leaks. Turn the faucet on and off a few times to confirm the drip is gone.

When a DIY Fix Isn’t Enough

Sometimes a dripping faucet is a symptom of a bigger issue. Here are signs it’s time to stop the DIY and pick up the phone:

• The leak persists after replacing parts. If you’ve swapped out the washer or cartridge and the drip continues, there may be damage to the valve seat or pipe connections that needs professional attention.
• You notice corrosion or significant mineral buildup. Tulsa’s water can be hard on plumbing fixtures over time. Heavy mineral deposits can indicate a bigger water quality or pipe issue worth evaluating.
• Water is dripping from the base of the faucet or under the cabinet. This points to a seal or supply line failure that goes beyond a simple washer replacement.
• The shutoff valves won’t close fully. Older shutoff valves in Tulsa homes sometimes fail to seal completely, which means you can’t safely make repairs without addressing the valves first.
• You’re dealing with low water pressure alongside the drip. That combination can signal a more serious pipe or supply issue.

There’s no shame in calling a plumber. Some repairs look simple on the surface but involve corroded fittings, outdated pipe configurations, or issues that require specialized tools. Attempting those without the right experience can turn a $20 fix into a much more expensive problem.

A Quick Word on Faucet Replacement

If your faucet is old, constantly dripping, or you’ve already replaced its internal parts more than once, replacement is often the smarter investment. Modern faucets are more water-efficient, easier to maintain, and can improve the look of your kitchen or bathroom. A licensed plumber can handle the swap quickly and make sure everything is properly sealed and up to code.

At Guaranteed Plumbing, we see a lot of Tulsa homes where a simple faucet repair turned into a full replacement because worn parts compounded over years of deferred maintenance. Catching it early — and fixing it right — saves money in the long run.

Ready to Stop That Drip for Good?

If you’ve tried the steps above and that faucet is still dripping, or if you’d just rather have it handled correctly the first time, give Guaranteed Plumbing a call. We’re a licensed plumbing company serving Tulsa and the surrounding metro area (License: OK126663), and we’re ready to help with everything from a single dripping faucet to full bathroom plumbing repairs. Call us at (918) 384-8731 to schedule a visit — no pushy sales, just honest plumbing work you can count on.

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