You wake up at 2 a.m. to the sound of dripping water. Or you turn on the kitchen faucet and barely a trickle comes out. Sound familiar? Faucet problems are some of the most common and most annoying issues homeowners deal with. The good news is most of them are completely fixable without calling a plumber. With the right knowledge and a few basic tools, you can handle the majority of faucet repairs yourself in under an hour.
1. Dripping or Leaking Faucet
This is the most classic faucet problem of all. A faucet that drips once per second wastes more than 3,000 gallons of water per year. That is not just annoying — it is money down the drain. A worn-out washer or O-ring is usually the culprit. In cartridge faucets, a damaged cartridge is often to blame. Over time, these parts degrade from friction and pressure.
How to fix it: Turn off the water supply valves under the sink. Remove the faucet handle by unscrewing the decorative cap and handle screw. Pull out the stem or cartridge. Inspect the washer and O-ring — replace any that look worn, cracked, or flattened. Reassemble the faucet and turn the water back on.
Pro tip: Take the old washer to your hardware store to match the exact size. A wrong-sized washer will not seal properly. Make sure you have the right tools before starting — see our complete faucet repair tools guide.
2. Low Water Pressure
You turn on the faucet and the water barely dribbles out. This is especially frustrating in the kitchen when you are trying to fill a pot or rinse dishes. Common causes include a clogged aerator, mineral buildup inside the faucet body, a partially closed shut-off valve, or issues with your home’s main water supply.
How to fix it: Start with the aerator — it is almost always the problem. Unscrew the aerator from the faucet spout by hand or with pliers (wrap it in tape first to avoid scratching). Disassemble and soak in white vinegar for 30 minutes. Scrub away deposits with an old toothbrush. Rinse and reinstall. If that does not solve it, check that the shut-off valves under the sink are fully open. For a full list of causes and solutions, read our low water pressure diagnosis guide.
3. Faucet Handle Is Hard to Turn
A stiff handle is more than an inconvenience — over time, forcing it can crack the valve seat or damage the cartridge. Mineral deposits, especially calcium and lime, build up inside the valve over time in hard water areas. The cartridge or stem may also be corroded.
How to fix it: Remove the handle and pull out the cartridge. Soak in white vinegar overnight. Apply plumber’s grease to the O-rings and cartridge body before reinstalling. If badly corroded, replace the cartridge entirely — most cost $5–$20. Prevent future buildup by following our faucet maintenance routine.
4. Squeaky Faucet Handle
That squeaking noise when you turn the handle is a sign that metal-on-metal friction is occurring inside the faucet. Worn or dry threads on the stem are the cause — as the rubber and plastic parts wear down, the metal components rub together.
How to fix it: Remove the handle and pull out the stem. Coat the stem threads with plumber’s grease or silicone-based lubricant. Reinstall the stem and handle. This fix takes about 10 minutes and costs almost nothing.
5. Water Spraying in All Directions
Instead of a clean, steady stream, water sprays out unevenly or at odd angles. A clogged aerator is almost always the cause — the small mesh screen inside gets blocked by sediment, forcing water through only certain openings. Hard water minerals are the most common culprit — read our hard water stain removal guide to understand how this buildup works and how to stop it.
How to fix it: Follow the aerator cleaning steps from Problem 2. If cleaning does not help, replace the aerator entirely. They typically cost $3–$10 at any hardware store and screw on by hand.
6. Faucet Won’t Shut Off Completely
You turn the handle all the way but water keeps running. This one needs to be fixed fast — it wastes water constantly. Possible causes include a worn-out cartridge or valve seat, a damaged washer that no longer forms a proper seal, or debris caught in the valve body.
How to fix it: Shut off the water supply immediately. Disassemble the faucet and inspect the cartridge and washer. Clean out any debris from the valve body. Replace the cartridge or washer — whichever is damaged. Our permanent leak fix guide covers every faucet type in detail and shows you exactly which part to replace.
7. Banging or Knocking Pipes (Water Hammer)
That loud bang or thump from inside the wall when you turn off the faucet is called water hammer. When water flow is stopped abruptly, it creates a shockwave that travels through the pipes. This happens when water pressure is too high — typically above 80 PSI — or when pipe supports have come loose.
How to fix it: Check your home’s water pressure with a gauge ($10–$15). Ideal residential pressure is 40–60 PSI. If too high, adjust the pressure-reducing valve (PRV) on your main water line. For loose pipes, secure them with pipe straps. Install a water hammer arrestor on the supply lines — these absorb shockwaves and are very affordable. Managing pressure is also a key part of our eco-friendly plumbing guide.
8. Rust or Discolored Water
You turn on the tap and the water looks brownish or orange. Possible causes include corroded pipes (especially in older homes with galvanized steel pipes), rust inside the faucet body, or sediment disturbance in the municipal water supply.
How to fix it: Run the cold water for 2–3 minutes. If the discoloration clears, it was likely a temporary supply line disturbance. If ongoing, inspect your faucet’s internal parts and replace any rusted components, or consider upgrading to a corrosion-resistant faucet — see our durability buying guide for what materials to look for.
Safety note: Do not drink discolored water until the issue is identified and resolved.
9. Faucet Base Is Leaking
Water pooling around the base of the faucet — not from the spout — often goes unnoticed until it causes water damage to the counter or cabinet below. Worn or cracked O-rings around the faucet body are the cause. These rings create a watertight seal between the faucet and the sink surface.
How to fix it: Turn off the water supply valves. Remove the faucet by disconnecting the supply lines and unscrewing the mounting nuts underneath the sink. Locate the O-rings around the base of the faucet body. Replace all O-rings at once — they are cheap and it is worth doing all of them. Apply plumber’s grease to the new ones before reinstalling. Remount and reconnect. Our bathroom faucet replacement guide covers the full removal and reinstall process step by step.
10. Slow-Draining Sink
Hair, soap scum, toothpaste, and grease build up inside the drain pipe over time, restricting water flow. A slow drain paired with standing water is one of the most common homeowner complaints.
How to fix it: Remove the drain stopper. Clean off any hair and gunk from the stopper mechanism. Use a drain snake to reach deeper into the drain. Pour boiling water mixed with dish soap down the drain to dissolve grease buildup. Avoid chemical drain cleaners regularly — they can corrode pipes over time.
Quick Reference: Tools You Will Need
Most of these fixes require only basic tools: adjustable wrench or basin wrench, Phillips and flathead screwdrivers, needle-nose pliers, utility knife, white vinegar and an old toothbrush, plumber’s grease (silicone-based), and a variety pack of replacement washers, O-rings, and cartridges. A basic faucet repair kit costs $10–$20. Our complete tools guide gives detailed buying advice for each item.
When to Call a Plumber
Call a professional for: water pressure issues that persist after checking the aerator and valves, discolored water from multiple fixtures throughout the house, water hammer that does not improve after reducing pressure, any signs of pipe leaks inside walls or under floors, or repairs involving soldering or cutting into supply lines. A licensed plumber can diagnose these issues safely and prevent costly water damage.
The biggest mistake homeowners make is putting off small repairs. A dripping faucet today becomes a corroded valve seat next year. A stiff handle ignored too long can crack and cause a flood.— FaucetMag Editorial Team
Frequently Asked Questions
How long does it take to fix a dripping faucet? Most dripping faucet repairs take 30 to 60 minutes for a first-timer. Once you have done it once, it gets much faster. The cartridge or washer swap itself only takes a few minutes — finding and buying the right replacement part usually takes the most time.
Can I fix a leaking faucet without turning off the water? No. Always shut off the water supply valves before disassembling a faucet. Skipping this step can result in flooding your bathroom or kitchen instantly. The shut-off valves are typically located directly under the sink.
How do I know if I need to replace my faucet instead of repairing it? If your faucet is more than 15 years old, has multiple problems at once, or repair parts are no longer available, replacement is often more cost-effective than continued repairs. A new mid-range faucet costs $60–$150 and will last another decade or more.
Why does my faucet make noise when running? A whistling or humming noise usually indicates a worn washer, high water pressure, or a partially blocked aerator. A rattling noise may suggest loose internal components. Each of these has a simple fix outlined in the sections above.
Is a dripping faucet really that wasteful? Yes. A faucet that drips just once per second wastes around 3,000 gallons of water per year — equivalent to 180 showers. Beyond the environmental impact, this shows up directly on your water bill.
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