A leaky faucet is one of the most common household problems, and the good news is that most leaks can be fixed without calling a plumber. A single dripping faucet can waste thousands of litres of water per year, so fixing it promptly saves both water and money. This step-by-step guide covers the most common faucet types and how to repair them yourself.
What You Will Need
- Adjustable spanner or wrench
- Flat-head and Phillips screwdrivers
- Replacement washers, O-rings, or cartridge (depending on faucet type)
- Plumber’s grease
- A towel and bucket
- Penetrating oil (if parts are corroded)
Step 1: Turn Off the Water Supply
Before touching anything, locate the shut-off valves under the sink and turn them clockwise until they stop. If there are no individual valves, you will need to shut off the main water supply to the house. Turn on the faucet to release any remaining water pressure and let the pipes drain completely.
Step 2: Identify Your Faucet Type
The repair method depends on your faucet type. The four most common types are:
- Ball faucet: Has a single handle that rotates over a rounded ball-shaped cap
- Cartridge faucet: Single or double handle with a cartridge inside
- Compression faucet: Two separate handles, older style
- Ceramic disc faucet: Single lever over a wide cylindrical body
Step 3: Remove the Handle
Look for a decorative cap on top of the handle — pry it off with a flat-head screwdriver to reveal a screw underneath. Remove the screw and lift the handle straight up. If it is stuck, wiggle it gently or apply penetrating oil and wait a few minutes.
Step 4: Access the Valve Mechanism
Once the handle is off, you will see the valve mechanism. For compression faucets, unscrew the packing nut and remove the stem. For cartridge faucets, remove the cartridge retaining clip and pull the cartridge straight up. For ball faucets, remove the cap and collar to access the ball assembly.
Step 5: Inspect and Replace the Worn Part
Most leaks are caused by worn rubber washers, O-rings, or a damaged cartridge. Inspect each component carefully:
- Flat rubber washers that look compressed or cracked need replacing
- O-rings that are swollen or deformed need replacing
- Damaged cartridges should be replaced entirely
Take the old part to a hardware store to find an exact match, or note the faucet brand and model to order the correct replacement.
Step 6: Reassemble the Faucet
Apply plumber’s grease to any new rubber components before installing them. Reassemble in reverse order — cartridge or stem first, then the packing nut, then the handle. Do not overtighten metal components as this can crack the fixture.
Step 7: Turn the Water Back On and Test
Slowly turn the shut-off valves back on. Turn the faucet on and off several times to check for leaks. Check underneath the sink as well to ensure there is no dripping from the connections. If the drip persists, the cartridge or valve seat may need professional attention.
When to Call a Plumber
Most faucet repairs are DIY-friendly, but call a plumber if you see corrosion on the pipes, if the shut-off valve itself is leaking, or if the faucet body is cracked. For more home maintenance skills, read our guide on 10 simple home maintenance tasks every homeowner should know.
Final Thoughts
Fixing a leaky faucet takes between 30 minutes and two hours for most people doing it for the first time. The parts typically cost under $20. That is a significant saving compared to a plumber callout fee, and the skill transfers to future repairs. Keep a small supply of common washer and O-ring sizes at home and you will be prepared for most faucet issues as they arise.
Frequently Asked Questions About Faucet Repairs
How long does it take to fix a leaky faucet?
Most leaky faucet repairs take between 30 minutes and 2 hours for a DIYer, depending on the type of faucet and the extent of wear. Ball-type faucets can take longer due to more components, while cartridge faucets are usually quicker to fix.
Do I need to turn off the water supply to fix a leaky faucet?
Yes, always shut off the water supply valves under the sink before starting. If there are no individual shut-off valves, turn off the main water supply to your home. This prevents water damage and makes the repair safe to carry out.
How much does it cost to fix a leaky faucet yourself?
DIY faucet repair typically costs between £10–£40 for replacement parts such as O-rings, washers, and cartridges. Hiring a plumber can cost £80–£250 or more depending on your location and the complexity of the job.
Can a leaky faucet increase my water bill?
Yes, significantly. A faucet dripping once per second wastes approximately 3,000 gallons of water per year, according to the US Environmental Protection Agency. Fixing leaks promptly is both environmentally responsible and cost-effective.
When should I call a plumber instead of fixing it myself?
Call a professional if the leak is in the main water line, if water is leaking inside the wall, if you have corroded pipes, or if the issue persists after you have replaced the standard repair parts.
Final Thoughts
Mastering Faucet Repairs can genuinely transform how you work and live. The tools and techniques covered in this guide are designed to be practical and actionable — you don’t need to be a tech expert to benefit from them.
Fixing a leaky faucet is one of the most cost-effective home maintenance skills you can learn. With the right tools and a bit of patience, most faucet repairs are well within the abilities of any homeowner.
Start small, be consistent, and you’ll be surprised how quickly these skills become second nature. Share this guide with someone who could benefit, and feel free to bookmark it for future reference.
Sources & Further Reading
- US Environmental Protection Agency. (2024). WaterSense — Fix a Leak Week. epa.gov/watersense
- This Old House. (2024). How to Fix a Dripping Faucet. thisoldhouse.com
- Family Handyman. (2024). Faucet Repair Guide. familyhandyman.com
- HomeAdvisor. (2024). Cost to Repair a Faucet. homeadvisor.com
