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Old Water Pipes | Water Heater Pros | Sacramento, Ca

Old Water Pipes

old galvanized pipe photo.webp
Average Life Expectancy for Plumbing Pipes

If your home was built before 1975, your plumbing pipes are over 50 years old and may be suffering from corrosion, undetected pinhole leaks, and longitudinal cracks that have yet to be discovered. When your water pipes start aging and leaking, even if just a drip or two every few seconds, it can lead to expensive mold and water damage. You may think a home inspector's assessment would include your plumbing pipes, but they often do not.

 

The average life expectancy for galvanized plumbing pipes is about 35 years, depending on the minerals in the water and the installation sizing. Given the average life expectancy for most plumbing pipes, you may need a preventive maintenance plumbing pipe inspection between the 30 and 40-year mark of your building.

  • Brass – Brass water supply lines tend to last between 70 years.

  • Copper – Copper water supply lines can last upwards of 60 years.

  • CPVC – CPVC tends to last about 40 years before needing to be replaced.

  • Galvanized Steel – Galvanized water lines corrode quickly between 35 years.

  • PEX – PEX piping has an average lifespan of around 40 years.

  • PVC – PVC, when buried underground, can be expected to last 30 years.

 

Home Assessment Benefits and Limitations

As your home ages, you may consider scheduling your residential building assessment to inspect the building's structural integrity. You would think that one of the systems to be inspected would be your home's potable water lines. Still, this type of inspection is often not included in a structural building assessment because this assessment only covers what can visually be seen. They do not typically involve destructive testing that provides for opening walls.

Instead, these inspections check the structural integrity of items that can be seen easily with the naked eye. Those systems typically include the roofing system, exterior and load-bearing walls, framing, floors, foundation, and electrical system. Unless an obvious flaw in another system, like your plumbing system, is apparent, it will not be inspected during your home's assessment.

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