Shower Faucets Leaking? Why It Happens and When to Grab a Wrench (or a Plumber)

In this brief article brought to you by Mr. Rooter Plumbing, we share our two cents on an issue we've been fixing for decades. With over 50 years of industry experience and heritage, Mr. Rooter is proud to be a trusted provider in all things plumbing. Homeowners, businesses, property managers, and local governments know Mr. Rooter is in it for the long-run.

Why Shower Faucets Leak

Let's say it like it is: Your shower faucet gets used more than just about any other fixture in your home. Over time, the wear and tear is inevitable. Here are just some of the things that can eventually go wrong and break down:

• Worn Washers/O-Rings: These small rubber parts create seals inside your faucet. Every time you turn the handle, they rub against metal. Eventually, they will wear down, harden, or crack. Once that happens, water sneaks through to cause that pesky drip.
• Damaged Cartridges or Valve Seats: Many modern faucets use cartridges to regulate water flow. If the cartridge is damaged or the valve seat (the part that connects the faucet to the pipe) corrodes, then leaks are almost guaranteed.
• High Water Pressure: Water pressure that’s too strong can force water past seals that are otherwise in good condition. That high pressure can also speed up natural wear and tear.
• Mineral Buildup: Hard water leaves behind minerals which can clog parts and keep seals from working properly. This can lead to leaks.
• Loose Parts: Sometimes, the problem is as simple as a loose screw or worn handle that doesn’t fully shut off the water.

Why a Leaky Shower Faucet Matters

It may be tempting to ignore that drip, but a leaking shower faucet can cause more than just irritation. Even a slow drip can waste dozens of gallons a week. That’s money literally going down the drain. Over time, leaks can even stain tiles, encourage mold growth, or damage walls and ceilings.

Sometimes a leak is just a symptom of a larger issue deeper in your plumbing system. This is where a professional leak detection can help uncover what’s really going on. The trained plumbers at Mr. Rooter, for instance, use both diagnostic devices and years of hands-on experience to get to the root of the problem.

When to Grab the Wrench

If you’re handy and the problem seems minor, then you might be able to handle some faucet repair yourself. For example, replacing a washer or O-ring, cleaning out mineral buildup, and tightening handles and screws are relatively straightforward and may restore a good seal.

If you go the DIY route, make sure to turn off the water supply first, and don’t force parts that don’t want to move - this can cause more damage. Do your due diligence and recognize what you're getting into.

When to Call a Plumber

DIY repairs are great for minor issues, or if you want a temporary fix until you have the time and/or budget, but it helps to know when calling a plumber is the smart idea. You'll want expert assistance if:

• You’ve tried replacing washers or cartridges and the faucet still leaks.
• The faucet is old and corroded.
• The leak seems to be coming from behind the wall (a much bigger issue).
• You suspect high water pressure or hidden leaks are part of the problem.

In short, if the work involves working with the water line or anything beyond the faucet fixture itself, then it is always advisable to bring in a trained plumber. The uniformed pros at Mr. Rooter Plumbing are always ready to help with upfront pricing, quality service, and emergency scheduling.