What Does a Shower Valve Do?
A shower valve is the mechanism inside your wall that controls the mix of hot and cold water and directs water to the showerhead. Over time, mineral buildup, wear and tear, or faulty installation can affect how well it functions. When a valve starts to fail, you may notice temperature fluctuations, reduced water pressure, or even leaks behind the wall.
Types of Shower Valves
There are several types of shower valves, each designed for specific functions:
- Pressure-Balancing Valves – These are the most common in residential homes. They maintain consistent water temperature by adjusting for fluctuations in water pressure. If someone flushes a toilet while you’re in the shower, this valve helps prevent sudden bursts of hot or cold water.
- Thermostatic Valves – These allow for more precise temperature control. You can set your desired temperature, and the valve will maintain it regardless of pressure changes. These are ideal for households with small children or elderly family members who need stable water temperatures.
- Diverter and Transfer Valves – Found in showers with multiple outlets, these valves direct water between the tub faucet, handheld showerhead, and body jets. If your shower has multiple spray options, you likely have one of these.
Signs Your Shower Valve Needs Repair or Replacement
If your shower isn’t working as it should, your valve may need attention. Look out for these common issues:
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Inconsistent water temperature – If your shower suddenly gets too hot or cold, the valve may be failing.
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Low water pressure – A faulty valve can restrict water flow, making showers less enjoyable.
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Dripping showerhead or leaks behind the wall – A worn-out valve can cause leaks that may lead to water damage and mold growth.
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Difficulty turning the handle – If your shower handle is stiff or doesn’t move smoothly, the internal components may be worn out.
When to Call a Professional Plumber
Replacing a shower valve is not a simple DIY task—it often requires opening the wall and working with plumbing connections. If you’re experiencing any of the issues above, Doug the Plumber can diagnose the problem and recommend the best solution. Whether you need a minor repair or a full valve replacement, our experienced team ensures the job is done correctly and efficiently.
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Doug the Plumber
Get Expert Shower Repairs in the Comox Valley
A reliable shower valve keeps your showers comfortable and stress-free. If you’re dealing with temperature swings, leaks, or weak water pressure, don’t wait for the problem to get worse. Call Doug the Plumber today—we’re here to help with all your residential plumbing needs in the Comox Valley.