Leaking Shower Valve Repair
Repair for valves that allow water to drip from the showerhead or tub spout after the handle is turned off.
Shower Valve Repair in San Antonio, TX
A leaking or malfunctioning shower valve can cause constant dripping, poor temperature control, weak flow, and water waste. In some cases, the problem may also affect the tub spout, showerhead, or plumbing behind the wall.
Lujan Plumbing provides professional shower and bathtub valve repair for homeowners throughout San Antonio and the surrounding area. We inspect the valve, identify the worn or damaged component, and explain whether repair or replacement is the better option.
Shower Cartridge Replacement
Replacement of worn, damaged, or mineral-covered cartridges that affect shutoff, flow, or temperature control.
Temperature-Control Repair
Diagnosis of showers that run too hot, too cold, or change temperature unexpectedly during use.
Hard-to-Turn Handle Repair
Service for handles that are stiff, loose, difficult to move, or no longer control the valve correctly.
Tub and Shower Diverter Repair
Repair for diverters that fail to direct water properly between the bathtub spout and showerhead.
Shower Valve Replacement
Replacement of a damaged, corroded, incompatible, or non-repairable valve assembly when necessary.
Signs Your Shower Valve Needs Attention
- The showerhead drips after the water is turned off
- The tub spout continues running during a shower
- The handle is difficult to turn or pull
- The handle feels loose or no longer controls the water properly
- The shower does not get hot enough
- The water suddenly becomes too hot or too cold
- Water pressure is weak only at the shower
- Water leaks around the handle or trim plate
- The valve makes squealing, grinding, or rattling noises
- The shower cannot be shut off completely
Many of these problems are caused by a worn cartridge, seal, stem, diverter, or another internal valve component. In other cases, the valve body or nearby plumbing may require further repair.
Repair or Replace?
Does the Entire Shower Valve Need to Be Replaced?
Not always. Many shower problems can be corrected by replacing a cartridge, stem, seal, handle component, or diverter while leaving the valve body in place.
Full valve replacement may be more practical when the valve body is cracked, badly corroded, leaking inside the wall, incompatible with available parts, or no longer providing dependable temperature control.
Lujan Plumbing will inspect the valve and explain whether a targeted repair or a complete replacement makes more sense.
Common Causes of Shower Valve Problems
Worn Cartridge
The cartridge controls water flow and mixing and can wear out, stick, or fail to seal properly.
Mineral Buildup
Hard-water deposits may restrict movement, reduce flow, and interfere with internal valve components.
Damaged Seals
Worn O-rings, washers, and seals can allow water to pass through or leak around the valve.
Corrosion
Age, moisture, and water conditions can damage metal valve parts and connections over time.
Faulty Diverter
A damaged diverter may allow too much water to continue flowing from the tub spout during a shower.
Installation Problems
Incorrect assembly, incompatible parts, or poor alignment may affect valve operation and cause leaks.
Shower Cartridge Repair and Replacement
The cartridge is one of the most common sources of shower-valve problems. It helps control water volume, shutoff, and the mixture of hot and cold water.
- Water continues dripping after shutoff
- The handle is stiff or difficult to move
- The shower produces only hot or only cold water
- The temperature changes unpredictably
- The handle turns without controlling the flow correctly
- Water leaks around the valve stem
Cartridges vary by manufacturer and valve model. The correct replacement should match the existing valve and be installed without damaging the valve body.
What to Expect During Shower Valve Service
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1
Describe the Problem
Tell us whether the shower is dripping, difficult to operate, leaking, or experiencing temperature problems.
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2
We Inspect the Valve
We examine the handle, trim, cartridge, diverter, valve, and relevant plumbing components.
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3
You Receive a Recommendation
We explain whether a component repair or complete valve replacement is the more practical solution.
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4
We Complete and Test the Work
After service, we test shutoff, flow, temperature adjustment, and the surrounding area for leaks.
Why San Antonio Homeowners Choose Lujan Plumbing
- More than 30 years of plumbing experience: Your shower valve is serviced by an experienced Master Plumber.
- Repair-first recommendations: We explain when a cartridge or individual component can solve the problem.
- Careful diagnosis: We identify whether the problem involves the valve, diverter, fixture, or nearby plumbing.
- Local and family-owned: You receive personal service from a San Antonio plumbing business.
- Respect for your bathroom: We work carefully around tile, fixtures, walls, and finished surfaces.
- Clear communication: We explain the recommended repair before completing the work.
Frequently Asked Questions About Shower Valve Repair
Why does my shower keep dripping?
A dripping shower is often caused by a worn cartridge, stem, washer, seal, or damaged valve component that no longer shuts the water off completely.
Can a shower cartridge be replaced without replacing the valve?
Yes, in many cases. If the valve body is still in good condition and the correct replacement cartridge is available, only the cartridge may need to be replaced.
Why is my shower handle difficult to turn?
A stiff handle may be caused by mineral buildup, a worn cartridge, corrosion, damaged internal parts, or an incorrectly installed component.
Why does my shower temperature keep changing?
Temperature changes may involve the valve cartridge, pressure balancing mechanism, thermostatic component, water-heater performance, or changing demand elsewhere in the home.
Why does water still come from the tub spout during a shower?
A worn or restricted diverter may not redirect all of the water to the showerhead.
Does shower valve replacement require opening the wall?
It depends on the valve location, available access, and plumbing layout. A cartridge repair usually does not require wall access, but complete valve replacement sometimes does.
Can a leaking shower valve damage the wall?
Yes. A leak inside the wall may damage drywall, framing, tile backing, flooring, and nearby materials if it continues.
Do you serve areas outside San Antonio?
Lujan Plumbing serves San Antonio and nearby communities. Contact us to confirm service availability for your address.
Request Plumbing Service
Need Help With a Leaking or Malfunctioning Shower Valve?
Contact Lujan Plumbing for professional shower valve repair in San Antonio. We will inspect the fixture, explain the problem, and recommend a practical solution.