Dripping Faucet
Faucet drips constantly even when turned off completely
Estimated Time
30-60 minutes
Urgency Level
Routine
Tools Required
3 items
Problem Overview
That steady drip-drip-drip from your faucet isn't just annoying. A single dripping faucet can waste 3,000+ gallons of water annually, adding $35-$60 to your water bill. The problem usually starts small but gets progressively worse as internal components wear out.
Most faucet drips occur because of worn washers, O-rings, or cartridges inside the faucet assembly. Every time you turn the water on and off, these small rubber or plastic components compress against metal seats. Over thousands of uses, they wear down, crack, or become coated with mineral deposits that prevent a perfect seal.
The type of repair needed depends on your faucet design. Compression faucets (the old style with separate hot and cold handles) use washers that need frequent replacement. Cartridge, ball, and ceramic disc faucets have different internal mechanisms but all eventually develop leaks as seals age.
Common Risk Factors
- Hard water that causes mineral buildup on sealing surfaces
- High water pressure (above 80 PSI) that stresses components
- Faucets older than 5-7 years with original parts
- Low-quality faucets with inferior internal components
- Overtightening handles when shutting off water
Signs & Symptoms
Recognizing faucet problems early helps you fix them before water damage becomes an issue:
Observable Signs
- Constant dripping: Water continues to drip from the spout after the faucet is fully closed
- Water pooling: Small puddles form around the base of the faucet
- Handle leaks: Water seeps out around the handle when you turn it on
- Squeaking or grinding: Unusual sounds when operating the handle indicate worn parts
- Reduced pressure: Water flow has noticeably weakened from one or both handles
- Temperature control issues: Difficulty getting the right water temperature
Leak Location Meaning
- Drips from spout: Worn washer or cartridge seal
- Leaks around handle: Failed O-ring or packing
- Water at base: Damaged basin seal or body O-rings
DIY Solutions
Tools You'll Need:
- Screwdriver
- Allen wrench
- Replacement washers/O-rings
Safety First
Turn off water supply valves under the sink before starting. If there are no shut-off valves, turn off the main water supply. Place a towel in the sink to catch small parts and protect the finish.
Step 1: Identify Your Faucet Type
Look at your faucet to determine the type. Compression faucets have separate hot and cold handles with washers. Cartridge faucets move up/down and left/right. Ball faucets have a single handle that moves in all directions over a rounded cap. Ceramic disc faucets have a single handle and a wide cylindrical body. Knowing your type determines which replacement parts you need.
Step 2: Disassemble the Faucet
Remove the decorative cap on the handle with a flathead screwdriver or knife. Unscrew the handle screw underneath and lift off the handle. For compression faucets, use a wrench to unscrew the packing nut, then remove the stem. For cartridge types, remove the retaining clip and pull out the cartridge. Take photos as you go to remember the assembly order.
Step 3: Replace Worn Parts
For compression faucets, remove the old washer from the bottom of the stem and replace it with an exact match. Check the valve seat inside the faucet body for damage. For cartridge faucets, replace the entire cartridge with the correct model. For ball faucets, replace the seats, springs, and O-rings. Coat new O-rings with plumber's grease before installing.
Step 4: Reassemble and Test
Reassemble the faucet in reverse order, being careful not to overtighten any parts. Hand-tighten first, then use a wrench for just a quarter turn more. Turn the water supply back on slowly and check for leaks. Let the faucet run for a minute, then shut it off and watch for drips. If it still drips, you may need to reseat the washer or replace additional components.
Common Mistakes to Avoid
- Not turning off the water supply completely (water can spray everywhere)
- Losing small parts down the drain (always plug it first)
- Using the wrong size or type of replacement washer or cartridge
- Overtightening connections, which can crack ceramic or plastic components
- Forcing stuck parts instead of using penetrating oil
When to Call a Professional
While many dripping faucet repairs are DIY-friendly, some situations require professional expertise:
- Can't stop the drip: If you've replaced parts but the faucet still drips, the valve seat may be corroded and need grinding or the entire faucet body may be damaged
- Damaged valve seat: Reseating or replacing valve seats requires specialized tools most homeowners don't have
- Stripped parts: Stripped screws, rounded nuts, or broken handles need professional removal techniques
- Unusual faucet models: High-end or imported faucets may use proprietary parts that are difficult to source
- Leaks behind the wall: If water stains appear on the wall or ceiling below, you have a bigger problem
- No shut-off valves: If you need new shut-off valves installed, hire a plumber
Also consider replacement over repair if your faucet is very old or low-quality. Modern faucets have better water efficiency and more durable components that can save you money and hassle long-term.
What a Professional Will Do
A professional plumber can diagnose and fix most dripping faucets in 30-60 minutes:
Quick Diagnosis (5-10 minutes)
The plumber will identify the faucet brand and model, then determine which internal components are likely causing the leak. Their experience lets them quickly pinpoint whether it's a washer, cartridge, O-ring, or valve seat issue without unnecessary disassembly.
Expert Repair
Pros carry common replacement parts on their truck and know which parts work best for each faucet type. They have specialized tools like valve seat wrenches and seat dressing tools to repair or replace damaged valve seats. For difficult repairs, they know tricks like using penetrating oil on stuck parts and proper techniques to avoid stripping screws.
Additional Inspection
While working on your faucet, plumbers check water pressure, inspect supply lines for wear, test shut-off valves, and look for hidden leaks under the sink. They'll alert you to any issues that could cause future problems, potentially saving you from emergency repairs later.
Warranty and Guarantee
Professional repairs typically include a service warranty (usually 30-90 days on labor) and manufacturer warranties on parts. If the leak returns within the warranty period, they'll fix it at no charge.
Prevention Tips
Extend your faucet's life and prevent drips with these maintenance habits:
Proper Use
- Don't overtighten faucet handles when turning off water (snug is enough)
- Turn handles slowly and smoothly rather than jerking them
- Don't let young children hang on or force faucet handles
Water Quality Management
- Install a water softener if you have hard water to prevent mineral buildup
- Clean aerators every few months to remove sediment
- Consider a whole-house water filter to reduce corrosive elements
Pressure Control
- Have your water pressure tested (ideal range is 40-60 PSI)
- Install a pressure regulator if pressure exceeds 80 PSI
- High pressure dramatically shortens faucet component life
Regular Inspection
- Check under sinks monthly for moisture or small leaks
- Address slow drips immediately before they worsen
- Replace washers and O-rings every 3-5 years as preventive maintenance
Cost Estimates
Fixing a dripping faucet is one of the more affordable plumbing repairs:
DIY Costs
- Washers and O-rings: $1-$5 for assorted packs
- Replacement cartridge: $15-$50 depending on brand
- Complete repair kit: $10-$30 for most faucet types
- Basic tools: $15-$40 if you need adjustable wrenches and screwdrivers
- Total DIY range: $5-$60 for most repairs
Professional Service Costs
- Simple washer replacement: $125-$200
- Cartridge or stem replacement: $150-$250
- Complete faucet rebuild: $200-$350
- Valve seat repair: $150-$300 (requires special tools)
- Average total service: $200-$330 including labor and parts
Replacement vs. Repair
If repair costs exceed $200 and your faucet is over 15 years old, replacement might be smarter. A quality new faucet costs $100-$300, with professional installation adding $150-$300 (total $250-$600). New faucets offer better efficiency, easier operation, and modern styles.
Cost of Ignoring the Problem
A faucet dripping once per second wastes over 3,000 gallons annually, adding $35-$60 to your water bill. A faster drip can waste 10,000+ gallons and cost $150-$200 per year. A $10 washer replacement can save you hundreds annually while preventing water damage to cabinets and countertops.