A dripping faucet feels harmless. But that small, steady drip adds up fast. One drip per second wastes about 3,000 gallons of water per year. That’s money going straight down your drain.
So, how much does a dripping faucet cost per month? On average, a faucet dripping once per second costs between $1 to $20 per month, depending on your local water rates and how fast it drips. A fast drip can push that number much higher.
How Much Water Does a Dripping Faucet Waste?
Before we talk about money, let’s talk about water.
The EPA says a single leaky faucet dripping once per second wastes around 3,000 gallons per year. That’s roughly 250 gallons per month.
Here’s a simple breakdown by drip rate:
| Drips Per Minute | Gallons Per Day | Gallons Per Month |
| 10 | 0.5 | 15 |
| 60 (1/sec) | 8.6 | 259 |
| 120 | 17.3 | 520 |
| 240 | 34.6 | 1,040 |
A slow drip might not seem bad. But a faucet dripping at 120 drips per minute wastes over 500 gallons a month. That’s the same as taking 10 extra showers.
How Much Does a Dripping Faucet Cost Per Month?
Here’s the number you came for.
The average U.S. household pays about $0.004 to $0.006 per gallon for water and sewer combined. Using that rate:
- Slow drip (10 drips/min): Around $0.06 to $0.09/month
- Medium drip (60 drips/min): Around $1 to $2/month
- Fast drip (120 drips/min): Around $2 to $4/month
- Very fast drip (240 drips/min): Around $4 to $8/month
Now multiply that by the number of faucets in your home. Most homes have 8 to 10 faucets. If two or three are dripping, your monthly cost jumps fast.
In high-cost water areas like California or New York, the cost of a dripping faucet can be 2 to 3 times higher than the national average. Some homeowners in those areas report paying an extra $15 to $20 per month from just one fast-dripping faucet.
Factors That Affect the Cost
The cost of leaky faucet damage isn’t just about drip rate. Several things change the total:
- Local Water Rates Water rates vary widely. In some cities, water costs as little as $0.002 per gallon. In others, it can reach $0.015 per gallon or more. Check your water bill or contact your utility to find your exact rate.
- Hot vs. Cold Water Drips If your hot water faucet is dripping, the cost of a dripping faucet goes higher. Your water heater works harder to keep up. That adds to your energy bill, not just your water bill.
- How Fast the Faucet Drips Obviously, a faster drip costs more. But most people underestimate how fast their drip rate actually is. Time 10 drips with your phone. If it takes under 10 seconds, that’s a fast drip.
- Time Left Unrepaired Every day you wait makes it worse. A faucet dripping for six months adds up to more than just wasted water. It can damage pipes, stain sinks, and lead to bigger plumbing problems.
- Type of Faucet Ball faucets, cartridge faucets, and compression faucets all have different failure points. Some are easier to fix and less likely to drip heavily. Ceramic disc faucets tend to last longest.
The Hidden Costs of a Dripping Faucet
The how much does dripping faucet cost question goes beyond your water bill. There are hidden costs too.
Sink and Fixture Damage Constant dripping leads to mineral buildup and staining. Over time, it can corrode your sink basin, especially with hard water. Replacing a stained or corroded sink costs $150 to $500 or more.
Increased Energy Bills A leaking hot water faucet keeps your water heater in near-constant use. Even a small drip can add $5 to $10 per month to your energy bill in colder climates.
Mold and Mildew Risk Moisture under the sink or around the faucet base promotes mold growth. Mold remediation costs $500 to $3,000 depending on how far it spreads.
Structural Damage If a faucet drips inside a cabinet or near a wall, water can seep into wood and drywall. That damage often isn’t visible until it’s serious and expensive.
Lower Home Value When selling your home, visible water damage or a history of plumbing neglect can reduce your asking price. Buyers notice stained sinks and soft wood under cabinets.
Signs Your Faucet Needs Repair
Catching a problem early saves money. Watch for these signs:
- You can hear dripping when the house is quiet
- Water appears in the sink basin when the faucet is off
- The handle feels loose or takes more force to fully shut
- There’s rust, green buildup, or white mineral crust around the base
- Your water bill went up with no obvious reason
- There’s moisture or staining under the sink cabinet
If you notice any of these, don’t wait. The longer you leave it, the higher the cost of leaky faucet damage becomes.
Why Faucets Start Dripping
Understanding why your faucet drips helps you fix it faster.
Worn Washers This is the most common cause. Every time you use the faucet, the rubber washer rubs against the valve seat. Over years, it wears out and lets water through. Most common in compression-style faucets.
Damaged O-Ring The O-ring seals the stem of the faucet handle. It wears out with regular use. When it fails, water leaks from the base of the handle or spout.
Loose Packing Nut The packing nut holds the stem assembly in place. If it loosens, water drips near the handle. Sometimes hand-tightening fixes this.
Corroded Valve Seat The valve seat connects the faucet and the spout. Sediment buildup corrodes it over time and causes leaking around the spout area.
Worn Cartridge In cartridge faucets, the cartridge controls water flow. Worn cartridges cause persistent drips. Replacing a cartridge is usually a simple DIY fix.
High Water Pressure Too much water pressure forces water past seals even when the faucet is closed. If your faucet drips only at night or certain times of day, high pressure may be the cause.
You can read about: Why Is My Water Heater Leaking
Is It Worth Fixing a Dripping Faucet?
Yes, always. Here’s why the numbers make it obvious.
A basic faucet repair costs between $100 and $250 if you hire a plumber. A DIY repair using a washer kit or cartridge replacement costs $5 to $25.
Now compare that to the ongoing cost of a dripping faucet left for a year:
- Water waste: 250 to 1,000+ gallons per month
- Annual water cost: $12 to $240+ depending on drip speed and local rates
- Potential damage costs: $150 to $3,000+
Even at the low end, fixing a drip pays for itself within months. At the high end, ignoring it could cost thousands in damage.
There’s also the environmental side. In drought-prone areas, wasting 3,000+ gallons per year from one faucet has real consequences. Many water utilities offer rebates or free repair kits for customers who fix leaks.
DIY Repair vs. Professional Plumbing Service
Can you fix it yourself?
For most homeowners, yes. Here’s a quick guide:
When DIY works:
- The faucet drips from the spout (usually a washer or cartridge)
- You can find the replacement part at a hardware store for under $20
- The faucet is a common brand with available parts
- You’re comfortable using basic tools
When to call a plumber:
- You’ve replaced the washer but it still drips
- The faucet base or pipes look corroded
- Water pressure is also an issue
- The drip is inside the wall or under a slab
- You’re not comfortable with plumbing work
Hiring a professional is smart when the problem is complex. A licensed plumber diagnoses the root cause instead of just treating symptoms. That saves money long-term.
Average repair costs:
- DIY washer replacement: $5 to $15
- DIY cartridge replacement: $10 to $30
- Professional repair: $100 to $250
- Full faucet replacement by plumber: $150 to $400
How to Prevent Faucet Leaks
Fixing a drip is good. Preventing one is better. These simple habits extend the life of your faucets:
Don’t overtighten faucet handles. Cranking the handle hard compresses and damages washers faster. Turn it just until the water stops.
Install a whole-home water pressure regulator if your water pressure exceeds 80 PSI. High pressure is a leading cause of faucet wear and leaks.
Use a water softener if you have hard water. Mineral deposits eat away at internal faucet parts over time.
Inspect under sinks every few months. Look for moisture, rust, or drips you might not hear from the other room.
Replace old faucets proactively. Most faucets last 15 to 20 years. If yours is getting close to that age, budget for replacement before it becomes an emergency.
Clean aerators regularly. Sediment in the aerator can cause partial blockages that increase pressure on internal seals.
What to Do If You Have Multiple Dripping Faucets
Some homes have more than one dripping faucet. This is common in older homes where all the faucets were installed at the same time and the parts wear out together.
If that’s you, here’s the smart approach:
- Count every dripping faucet in your home
- Note which are hot water faucets (they cost more to fix later)
- Get a plumber to inspect all of them in one visit to save on service fees
- Ask about replacing old faucets entirely if they’re over 15 years old
A plumber who inspects multiple faucets at once usually charges a single service call fee rather than billing per faucet. That saves you money compared to calling them out twice.
Final Thoughts
A dripping faucet is easy to ignore. But how much does a dripping faucet cost per month can surprise you, especially when you add up the water bill, energy costs, and potential damage. A one-second drip wastes 250+ gallons per month and can cost $1 to $20+ depending on your water rates. That doesn’t count the damage you can’t see yet.
Fix it early. Most repairs are cheap and quick. If you’re in the Eagle Rock area, the team at Derks Plumbing offers professional Eagle Rock faucet repair & installation services for all faucet types. Whether it’s a worn washer or a full replacement, getting it done right the first time saves you more money in the long run.
Don’t let a small drip turn into a big bill.
Frequently Asked Questions
How much does a dripping faucet cost per month on average?
A faucet dripping once per second costs roughly $1 to $2 per month in water costs. Faster drips or higher local water rates can push that to $10 to $20 per month or more.
How much water does a dripping faucet waste per month?
A faucet dripping at one drip per second wastes about 250 gallons per month and around 3,000 gallons per year.
Is it cheaper to fix a drip myself or hire a plumber?
DIY repair costs $5 to $30 for parts. A plumber charges $100 to $250 for most faucet repairs. If the fix is simple (worn washer or cartridge), DIY is worth trying first.
Does a dripping hot water faucet cost more?
Yes. A hot water drip also wastes energy because your water heater constantly reheats the water. It adds $5 to $10 per month to your energy bill on top of water costs.
How do I know how fast my faucet is dripping?
Count the number of drips in 60 seconds. Ten drips per minute is a slow drip. Sixty is a medium drip. 120 or more is a fast drip that needs immediate attention.
Can a dripping faucet cause water damage?
Yes. Over time, a dripping faucet causes staining, corrosion, mold, and structural damage to wood cabinets and walls. These repairs can cost hundreds to thousands of dollars.
When should I replace a faucet instead of repairing it?
If the faucet is over 15 years old, replacement parts are hard to find, or the repair cost approaches the price of a new faucet, replacement is usually the smarter choice.
