Water Pressure Regulator & Expansion Tank Installation in San Francisco
If your water pressure swings between a trickle and a blast, or you've noticed banging pipes and a leaking water heater relief valve, the problem usually isn't the fixture — it's pressure. Bay Area Plumbing installs and repairs pressure-reducing valves (PRVs) and thermal expansion tanks to keep your system's pressure in a safe, steady range.
What We Handle
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Pressure-reducing valve (PRV) installation and replacement
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Thermal expansion tank installation
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Diagnosing high water pressure from the city main
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Fixing water hammer (banging pipes)
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Code-required expansion tank installs alongside water heater replacement
Common Questions
How do I know if I have a water pressure problem? Common signs: pressure that changes throughout the day, banging or hammering sounds when a faucet shuts off, or a water heater's pressure relief valve dripping. We can test your actual pressure and tell you exactly what's going on rather than guessing from symptoms.
Is an expansion tank required by code? In many cases, yes — San Francisco requires a thermal expansion tank when a home has a closed plumbing system (typically the case with a PRV or backflow preventer installed) and you're replacing a water heater. We'll confirm what applies to your specific setup.
Will fixing my water pressure damage my pipes less over time? Yes — consistently high pressure is one of the more common hidden causes of premature pipe, fixture, and appliance failure. A properly set PRV often pays for itself in avoided repairs.
Get an Estimate
Call (415) 668-8000 for pressure regulator or expansion tank installation in San Francisco.