What Is a Water Efficiency Certificate?

A Water Efficiency Certificate (WEC) is a document that confirms a property meets the required standards for water efficiency. In Australia, these certificates are commonly required for rental properties, particularly in states such as Queensland, to allow landlords to pass water usage charges on to tenants.

The certificate verifies that key plumbing fixtures in a property meet minimum water efficiency requirements. This helps reduce water waste, lower water bills, and ensure properties are compliant with state regulations.

Water Efficiency Certificates are typically issued by a licensed plumber after inspecting the property's taps, toilets, and showerheads to confirm they meet the necessary standards.

Why Water Efficiency Certificates Are Important

Water Efficiency Certificates play an important role in conserving water and ensuring rental properties meet legal requirements.

For landlords, the certificate allows them to charge tenants for water usage under most tenancy agreements. Without this certificate, landlords may not be able to pass on water consumption costs.

For tenants, water efficiency standards help ensure that fixtures are not wasting water unnecessarily, which can lead to lower water bills.

Overall, these certificates encourage better water management and help promote sustainable water use across households.

When Is a Water Efficiency Certificate Required?

A Water Efficiency Certificate is generally required when a property is being rented out and the landlord intends to charge the tenant for water usage.

In Queensland, for example, a rental property must meet specific water efficiency standards before tenants can be billed for water consumption.

Situations where a certificate may be required include:

• Renting out a property for the first time
• Starting a new tenancy agreement
• Verifying compliance with water charging rules
• Property management requirements

Even if a certificate is not legally mandatory in every situation, many landlords choose to obtain one to ensure their property meets the correct standards.

What Does a Water Efficiency Inspection Include?

During a water efficiency inspection, a licensed plumber will check several plumbing fixtures throughout the property.

The goal is to ensure that each fixture meets the required water flow rate limits.

Typical items inspected include:

Showerheads

Showerheads must not exceed a maximum flow rate, usually 9 litres per minute.

If a showerhead exceeds this limit, it may need to be replaced with a more water-efficient model.

Taps

Kitchen, bathroom, and laundry taps are checked to ensure they are not leaking and that they meet the required flow rate limits.

Leaking taps must be repaired before a certificate can be issued.

Toilets

Toilets must be dual flush systems with a full flush of no more than 6.5 litres and a half flush of no more than 3.5 litres.

Older single-flush toilets often need to be upgraded to meet compliance requirements.

Leaks

The plumber will also check for any obvious leaks within the property’s internal plumbing.

Leaks must be fixed before the property can be certified as water efficient.

The Water Efficiency Certification Process

Obtaining a Water Efficiency Certificate is usually a straightforward process.

The steps typically include:

Step 1: Booking an Inspection

A licensed plumber is booked to carry out the water efficiency assessment at the property.

Step 2: Inspecting Fixtures

The plumber inspects taps, toilets, showerheads, and other fixtures to ensure they meet water efficiency standards.

Step 3: Repairs or Upgrades (If Needed)

If any fixtures do not meet the required standards, the plumber may recommend repairs or replacements.

Common upgrades include installing new showerheads or fixing leaking taps.

Step 4: Issuing the Certificate

Once the property meets the required standards, the plumber will issue a Water Efficiency Certificate confirming compliance.

This document can then be kept on record for tenancy purposes.

Benefits of a Water Efficiency Certificate

There are several advantages to having a water efficiency certificate for your property.

Ability To Charge Tenants For Water Usage

One of the main benefits is that landlords can legally charge tenants for water usage in accordance with tenancy regulations.

Lower Water Bills

Water efficient fixtures reduce water consumption, which can help lower overall water bills for both landlords and tenants.

Reduced Environmental Impact

Using less water helps conserve an important natural resource and supports environmentally responsible living.

Improved Property Value

Properties with modern, efficient plumbing fixtures are often more appealing to tenants and may increase overall property appeal.

Fewer Plumbing Issues

Upgrading older fixtures can reduce the risk of leaks, maintenance problems, and unnecessary water waste.

How Long Does a Water Efficiency Certificate Last?

In many cases, a Water Efficiency Certificate does not have a specific expiry date.

However, the property must continue to meet the required water efficiency standards throughout the tenancy.

If fixtures are replaced, damaged, or modified, another inspection may be required to confirm compliance.

Some landlords choose to obtain a new certificate when starting a new tenancy agreement to ensure everything remains compliant.

Common Upgrades Needed for Water Efficiency Compliance

Older properties sometimes require upgrades before they can receive a Water Efficiency Certificate.

Common improvements include:

• Replacing high-flow showerheads
• Fixing leaking taps
• Installing dual flush toilets
• Replacing worn washers or valves
• Upgrading older plumbing fixtures

These upgrades are generally straightforward and can significantly improve water efficiency throughout the home.

Who Can Issue a Water Efficiency Certificate?

A Water Efficiency Certificate must be issued by a licensed plumber who is qualified to assess plumbing fixtures and confirm compliance with water efficiency standards.

Plumbers have the tools and experience required to measure flow rates, inspect plumbing fixtures, and identify leaks or inefficiencies.

Hiring a licensed professional ensures that the inspection is carried out correctly and that the certificate is valid.

Final Thoughts

A Water Efficiency Certificate confirms that a property meets the required standards for water efficiency and is often necessary for rental properties where landlords wish to charge tenants for water usage.

The inspection involves a plumber checking taps, toilets, showerheads, and plumbing fixtures to ensure they meet flow rate limits and are free from leaks.

Obtaining a certificate is usually a quick process carried out by a licensed plumber and can provide benefits such as lower water consumption, reduced bills, and compliance with tenancy regulations.

By ensuring plumbing fixtures are water efficient, property owners can help conserve water while keeping their rental property compliant and functional.