A successful leaky faucet repair starts with finding exactly where the water is escaping. A drip from the spout often points to a worn internal seal or valve part, while water around a handle or beneath the sink can have a different cause. Many leaks can be repaired without replacing the whole fixture, but the right fix depends on the faucet design and the condition of its parts. First dry the area, trace the leak while the faucet is both off and running, and check whether the shutoff valves work. If the source remains unclear, a valve will not close, or water damage is developing, ask a handyman or plumber to assess it.

Find the leak before taking the faucet apart

Water can travel along a faucet, countertop, sink or pipe before it collects in a visible spot. A wet cabinet floor, for example, does not necessarily mean the leak began beneath the sink. Dry the faucet and surrounding surfaces, then observe where moisture first appears.

  1. Check the spout with the faucet off. A few drops immediately after shutting off the water may be water left in the spout. If dripping continues or returns regularly, the valve may not be sealing fully.
  2. Look around each handle while the water runs. Moisture that appears at a handle or stem may indicate a worn seal, packing, cartridge or other internal part. Note whether it happens only when the faucet is on.
  3. Inspect the faucet base and sink surface. Water may escape from the fixture, but splashing or water left around the sink can also run toward the base. Dry the area and run the water briefly to see where moisture starts.
  4. Check beneath the sink. Look at the supply connections, shutoff valves and visible faucet connections while the faucet is running, then again after it is turned off. A dry tissue can help reveal a small seep.
  5. Record the details. Note whether the leak occurs with hot water, cold water or both, and whether it changes when you use a particular handle or spray function. A photo of the faucet and any visible model information can help identify compatible parts.

Do not assume that a puddle at one location identifies the source. If water appears beneath the sink, trace it upward where possible. A leak can run down a hose or cabinet surface before dripping, and repeated wiping without locating its starting point may conceal the problem rather than solve it.

What different leak locations can indicate

Where water appears When it appears Possible cause Useful next check
Spout After the faucet is shut off A worn or damaged valve seal, cartridge or related internal part Allow any immediate residual drops to stop, then see whether dripping continues
Handle or stem While the faucet runs or when a handle moves A seal, packing component, cartridge or stem may be worn or loose Dry the area and identify which handle or operating position triggers moisture
Faucet base During use, or after water splashes onto the sink A fixture seal or connection may be leaking; water may also be running across the sink Dry the base and sink, then run water carefully and watch where wetness begins
Under the sink During use or while the faucet is idle A supply connection, shutoff valve or faucet connection may be seeping Trace moisture upward and check connections without tightening them blindly

These are diagnostic clues, not a guarantee of which part has failed. Faucet designs vary, and the same visible symptom can have more than one cause. If water is reaching cabinetry or flooring, limit further use until you can control the leak and identify its source.

Match the repair to the faucet type

Before buying parts, identify the faucet make and model if possible. Look for labels, paperwork or model information on the fixture, and take a clear photo of the handle and faucet. If the model is unknown, the old part may need to be removed and matched carefully; appearance alone is not always enough to identify a compatible replacement.

Faucet design Common parts involved Repair considerations
Compression Washer, stem or seat components Wear in a sealing washer can allow water past the valve. The replacement must fit the faucet, and damaged surrounding parts may also need attention.
Cartridge Cartridge and its seals A compatible cartridge may be replaceable without changing the entire faucet. Cartridge shape and fit depend on the fixture.
Ball Ball, seats, springs and seals Several small parts may work together. Reassembly order matters, so use the faucet’s instructions or have a handyman handle it if the layout is unclear.
Ceramic disc Disc cartridge or related seals The cartridge may be serviceable or replaceable, depending on the design. Avoid forcing parts that do not release easily.

This comparison is a starting point, not a repair specification. Some faucets have distinctive parts, and similar-looking components may not be interchangeable. Use the model information and manufacturer’s instructions when available. If you cannot identify the design or the replacement part confidently, a handyman can help confirm what is needed before the faucet is dismantled further.

leaky faucet repair

How to approach a basic leaky faucet repair

A straightforward repair is most suitable when the leak source is clear, the shutoff valves work, the faucet is in serviceable condition and you can identify the correct replacement part. Set aside enough time to work carefully. Rushing a repair or improvising with an uncertain part can leave the faucet leaking or make reassembly more difficult.

  1. Prepare the work area. Clear the cabinet beneath the sink and place a towel or shallow container where residual water could fall. Cover the drain opening so a small screw or clip cannot disappear into it.
  2. Shut off the water. Close the hot and cold shutoff valves, then open the faucet to relieve pressure. If there are no usable local valves, or they will not close, stop and arrange for the water supply to be shut off safely.
  3. Document the disassembly. Take photos as you remove the handle and other parts. Keep components in order, including clips, screws and springs, so you can see how they fit back together.
  4. Inspect the likely sealing parts. Look for obvious wear, damage, mineral buildup or a part that is no longer seated correctly. Do not assume that a part is faulty simply because it is accessible; the symptom and faucet design should point to it.
  5. Fit a compatible replacement. Match the part to the faucet model or the removed component. Do not stretch seals, force a cartridge into place or substitute an approximate part if it does not fit as intended.
  6. Reassemble and test gradually. Restore the water supply carefully, then operate the faucet and check the original leak location. Inspect beneath the sink as well. If the leak remains, shut off the water again rather than repeatedly tightening or forcing components.

Some internal parts need to be installed in a particular orientation. If the faucet’s instructions are unavailable and the arrangement is unclear, stop before disassembly goes beyond what you can confidently reverse. This is a sensible point to call a handyman rather than risk damaging a component or creating a second leak.

When to repair, and when to replace the faucet

Replacing a small worn part is often worth considering when the fixture is otherwise stable, the leak has a clear source and a compatible component is available. Repair avoids changing a faucet that may still be in good condition. However, a repair is less appealing if the faucet body is cracked, corrosion is extensive, the fixture is loose or damaged, or repeated failures keep returning.

Replacement may also make sense when the required part cannot be identified or obtained, or when the faucet’s condition makes a dependable repair unlikely. The choice depends on the fixture, access, required work and your preferences; a drip alone does not establish that replacement is necessary. Ask the person assessing the job to explain whether the problem is limited to a replaceable part or involves the faucet body, connections or sink mounting.

plumber repairing sink faucet

When to call a handyman

Contact a handyman or plumber if the leak continues after a careful repair, if you cannot locate its source, or if the shutoff valves fail to control the water. Professional help is also a safer choice when connections are corroded, access beneath the sink is difficult, the faucet is loose, or water has reached the cabinet or nearby building materials.

For renters, report a leak to the landlord or property manager before dismantling the fixture. They may need to arrange the repair, and an unapproved disassembly can complicate responsibility for any damage. Property managers should also document the location and timing of the leak and check whether moisture has affected the cabinet, wall or floor around the sink.

When comparing service options, describe the faucet type if known, where water appears, when it leaks, and what you have already checked. Ask whether the visit covers diagnosis and repair, whether replacement parts are separate, and whether the provider expects to repair the existing faucet or may recommend replacement after inspection. Those details help clarify the likely scope without assuming a fixed cost before the cause is known.

leaky kitchen faucet under sink

Common mistakes that can make the problem worse

  • Replacing the entire faucet before diagnosing it. A worn internal seal or loose connection may be the only problem. Confirm the source before deciding on a new fixture.
  • Buying a part based only on appearance. Similar faucets can use different cartridges, washers or seals. Identify the model or match the removed component carefully.
  • Forcing a stuck handle or valve. Excessive force can damage parts or disturb a connection. Stop if a component will not move with reasonable care.
  • Tightening every visible connection. A leak may originate elsewhere, and indiscriminate tightening can damage a fitting. Trace the moisture first.
  • Ignoring a small leak beneath the sink. A slow seep can still wet cabinetry over time. Check the area again after testing the faucet.
  • Assuming a repair worked after a quick glance. Test the faucet in the conditions that produced the leak, then recheck the faucet base and cabinet for fresh moisture.

Frequently Asked Questions

Why does my faucet drip after I turn it off?

A few drops immediately after shutoff may be water draining from the spout. If the dripping continues or returns regularly, a valve part, cartridge or seal may not be closing properly. Observe whether the leak persists before deciding what to replace.

Can I repair a dripping faucet without replacing the whole fixture?

Often, yes, if the leak comes from a replaceable internal part and the rest of the faucet is in good condition. The repair depends on the faucet design and the correct part being available. A cracked or badly deteriorated fixture may be a better candidate for replacement.

How can I tell whether water under the sink is coming from the faucet?

Dry the cabinet and visible connections, then run the faucet while watching for the first sign of moisture. Check the supply connections and shutoff valves as well as the underside of the faucet. Water can travel along a surface, so the place it collects may not be the source.

Should I use a sealant or tape to stop a faucet leak?

Sealant or thread tape is not a general fix for leaks from faucet handles or spouts; those symptoms usually require diagnosis of the valve or its sealing parts. Use only materials specified for a particular connection, and do not apply them to components that are designed to seal another way.

What should I do if the shutoff valve under the sink is stuck?

Do not force a stuck or corroded valve, especially if it begins to leak or fails to stop the water. Stop the repair and arrange for a handyman or plumber to address the supply control before the faucet is dismantled.

When is professional help preferable to a DIY repair?

Call a professional when the leak is hard to trace, the water cannot be shut off safely, parts are difficult to identify, or a repair does not stop the leak. Professional assessment is also sensible if moisture has reached cabinetry or flooring.

For leaky faucet repair, the most useful first step is to locate where water escapes and when it happens. If the cause points to a replaceable part and you can shut off the water safely, a careful repair may be enough. If the source is uncertain, the fixture is damaged or the drip persists, have a handyman assess it before the problem spreads.