Shower Mixing Valve
A pressure-balanced or thermostatic valve that mixes hot and cold water and protects against sudden temperature swings.
Quick answer
Shower Mixing Valve: A pressure-balanced or thermostatic valve that mixes hot and cold water and protects against sudden temperature swings. Typical cost: $120–$700 hardware; $300–$1,200 installed..
Why it matters
Code requires anti-scald valves on all new showers; thermostatic versions also remember your preferred temperature.
Typical cost
$120–$700 hardware; $300–$1,200 installed.
Pros
- • Required for code on new construction
- • Thermostatic versions add comfort
Cons
- • Cartridge failures cause sudden cold or hot bursts
Common uses
- • Every modern shower
Alternatives
Two-handle (no longer code-compliant on new installs)
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Frequently asked questions
- Pressure-balanced or thermostatic?
- Thermostatic is worth the upcharge if you can afford it — way more precise.
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