Backflow Prevention Services Christchurch

Registered IQP Backflow Prevention Providers In Christchurch

The team at Whitehead Plumbing & Gas are specialists in backflow prevention services Christchurch and Canterbury wide. We are here to help with backflow prevention installation, maintenance and testing.

Backflow Prevention Installation And Maintenance

In Christchurch and Canterbury, we are very fortunate to be able to drink our tap water. However, we must be careful not to take this for granted, backflow prevention devices protect our municipal water supply from the potential health hazards of ‘back-siphoned’ contamination.

Inadequate backflow prevention can cause serious health implications, particularly if your water supply is exposed to any hazardous substances such as chemicals or bacteria. Without suitable protection, you or your business could potentially be held liable. The Christchurch City Council outlines strict regulations governing the installation and testing of Backflow Prevention devices.

Whitehead Plumbing backflow prevention services include:

• Installation of approved backflow prevention devices
• Maintenance of existing backflow prevention devices
• Annual compliance testing
• Assistance with the Christchurch City Council consent process (if necessary)
• Completed backflow prevention device statement/forms (including photos)

What Is Backflow?

Backflow is the dangerous reversal of water flow, where “dirty” water from hoses, pools, or industrial systems is sucked back into your clean drinking supply. This usually occurs due to back-siphonage (a sudden drop in city water pressure) or back-pressure (when your property’s pressure exceeds the main supply).

In New Zealand, backflow prevention is a legal requirement. Depending on your property’s risk category, you may be required to have your devices inspected and tested annually by a certified technician to ensure they remain fail-safe.

Why It Matters

Without prevention, your potable water is at risk of cross-contamination from:

• Chemicals: Fertilisers and soaps from garden hoses or irrigation
• Bacteria: Stagnant water from fire sprinklers or commercial equipment
• Toxic Waste: Industrial byproducts from high-risk sites

How We Prevent It

To keep your water pure, we install one-way gates such as Air Gaps, Check Valves, or high-security Reduced Pressure Zone devices. These mechanical barriers ensure that water only ever moves in one direction – toward your tap.

As a registered IQP Backflow Prevention Provider, at Whitehead Plumbing & Gas we will ensure that all your backflow prevention devices are installed, tested, and repaired safely to meet all compliance regulations.