Plumbing Inspection Overview

Plumbing refers to a series of interconnected pipes, valves, and tanks that are used to transport water to and from a residential or commercial property as well as fuel such as natural gas. Typically made from copper or PVC, these systems work to deliver potable water, supply fuel to water heaters, and transport wastewater to local sewer and septic systems.

Some of the most common plumbing issues we run into in the Southwest are leaking fixtures, drainage issues, or low water pressure. While these issues may seem relatively innocuous at first glance, they could be signs of much larger—and potentially costly—repairs. This can be even more dangerous if there are leaks in fuel lines.

Plumbing Inspection Process

Per InterNACHI®’s Standards of Practice for inspecting plumbing systems in residential and commercial properties, your inspector will inspect and described the various accessible components of a property’s plumbing.

While there is some variance between residential and commercial properties, both inspections typically include inspecting:

  • Whether water supply is private or public

  • Main water supply shut-off valve

  • The location of any fuel-storage system

  • Main fuel supply shut-off valve

  • Water heating equipment including fuel source, vents, pressure-relief valves, seismic bracing, and capacity if labeled

  • All interior water supplying fixtures and faucets

  • Proper operation of all toilets

  • Functional drainage for all sinks, showers, and tubs

  • All drain, waste, and vent systems

  • Drainage sump pumps

  • Piping support

Your home inspector will report on any problems or needed repairs found in the plumbing system, such as:

  • Water supply deficiencies

  • Incorrect or deficient hot and cold water faucet installation

  • Signs of active leaks

  • Damaged, loose, or inoperable toilets

  • Missing, damaged, or inoperable mechanical drain stops

  • Signs of previous flooding damage

  • Presence of Kitec Plumbing