TL;DR: Plumbing systems in Christchurch should generally be checked at least once a year. Properties with higher usage, such as rentals or commercial buildings, may benefit from more frequent checks.

Why regular checks are important

Plumbing systems operate continuously and can develop wear over time.

Regular inspections help identify small issues before they become more serious.

Typical inspection frequency

For most properties:

• An annual check is a good general guideline

This provides an opportunity to review the system and address any developing issues.

When more frequent checks are useful

Some properties may benefit from more regular inspections, including:

• Rental properties with multiple tenants
• Commercial or managed buildings
• Properties with older plumbing systems

Higher usage can increase wear on the system.

What is usually checked

A plumbing check may include:

• Looking for leaks or signs of wear
• Checking water pressure and flow
• Inspecting hot water systems
• Reviewing drains, gutters, and downpipes

The aim is to ensure everything is working correctly.

Signs you may need a check sooner

You may want to arrange a check earlier if you notice:

• Changes in water pressure
• Slow drains or recurring blockages
• Unusual noises or smells

These can indicate developing issues.

Benefits of regular inspections

Routine checks can help:

• Reduce the risk of unexpected problems
• Extend the life of the plumbing system
• Maintain consistent performance

They also provide reassurance that everything is operating as it should.