Give us a call: 763-220-3765

How to Stop a Leaking Faucet: 5 Common Causes and DIY Fixes Before Calling a Plumber

That constant drip, drip, drip from your kitchen or bathroom faucet isn't just annoying—it's costing you money every single day. A single leaking faucet can waste over 3,000 gallons of water annually, adding unnecessary dollars to your utility bill while keeping you awake at night.

Most homeowners feel frustrated when dealing with leaking faucets because they're unsure whether it's something they can fix themselves or if they need professional help. The good news is that many common faucet leaks can be resolved with basic tools and a little know-how.

At First Class Plumbing, we believe every homeowner deserves to understand their plumbing systems. After fixing thousands of leaking faucets across Minnesota, we've identified the five most common causes and when you can tackle them yourself versus when it's time to call in the professionals.

The 5 Most Common Causes of Leaking Faucets

1. Worn-Out O-Ring

What it is: The small rubber ring that creates a watertight seal

DIY Fix: Turn off water supply, remove the faucet handle, replace the O-ring with an identical size from your hardware store

Cost: $2-5 for replacement O-ringsTime: 15-30 minutes

2. Damaged Valve Seat

What it is: The connection point between the faucet and spout where mineral deposits accumulate

DIY Fix: Clean mineral buildup with white vinegar, or use a valve seat dresser tool to smooth rough surfaces

Cost: $10-15 for cleaning supplies or seat dresser

Time: 30-45 minutes

3. Corroded Cartridge

What it is: The internal mechanism that controls water flow in single-handle faucets

DIY Fix: Remove old cartridge with pliers, install identical replacement cartridge from manufacturer

Cost: $15-40 for replacement cartridge

Time: 45-60 minutes

4. Faulty Ball Assembly

What it is: The rotating mechanism inside ball-type faucets that controls water mixing

DIY Fix: Replace entire ball assembly kit including springs, seats, and O-rings

Cost: $20-30 for complete kit

Time: 1-2 hours

5. Loose or Damaged Packing Nut

What it is: The large nut that holds the faucet stem in place

DIY Fix: Tighten with appropriate wrench, or replace packing if threads are damaged

Cost: $5-10 for new packing material

Time: 20-30 minutes

When to Call First Class Plumbing Instead

While many faucet repairs are DIY-friendly, some situations require professional expertise to avoid costly damage:

  • Multiple attempts haven't solved the problem - This often indicates a deeper issue requiring diagnostic expertise
  • Water pressure has significantly decreased - May signal supply line problems or internal damage
  • Visible corrosion or mineral buildup throughout the fixture - Complete replacement may be more cost-effective
  • The faucet is over 15 years old - Older fixtures often have discontinued parts or hidden wear
  • You discover additional plumbing issues during the repair process

Protect Your Investment with Quality Materials

One critical mistake we see homeowners make is using cheap replacement parts that fail within months. At First Class Plumbing, we only install quality materials because we understand that doing the job right the first time saves you money and frustration in the long run.

When you attempt DIY repairs, invest in manufacturer-original parts rather than generic alternatives. The few extra dollars spent upfront prevent repeat failures and additional repair costs.

Your Next Step

If you've tried these solutions and your faucet is still leaking, or if you'd prefer to have the repair done right the first time by Minnesota-licensed professionals, First Class Plumbing is here to help.

Our technicians are trained to diagnose the root cause quickly and install only quality materials that last. We provide transparent pricing with three options so you can select the solution that fits your needs and budget.

Ready to stop that annoying drip for good? Contact us to schedule your same-day service appointment. Our technicians will contact you when they're en route, and you'll only be invoiced after the work is completed to your satisfaction.