Fire Hydrant Flow Testing is Critical
Hydrant flow testing is a critical part of fire safety compliance. It proves that your hydrant system delivers the required water pressure and flow so firefighters can do their job effectively. At Critical Fire, we carry out hydrant flow testing in strict accordance with AS 1851 and AS 2419, providing you with clear, defensible reports that stand up to audits, WHS obligations and insurance requirements.
We provide two types of hydrant flow testing: Building Hydrant Testing (above-ground hydrants on site) and Street Hydrant Testing (underground mains). Both are essential to demonstrate your system’s readiness.
Building and Street Hydrant Flow Testing Services

Building Hydrant Testing
For on-site, above-ground hydrants
Building hydrants are the red pipes and outlets you see installed on walls or in hydrant cabinets across commercial, industrial, and multi-residential sites. They are designed to provide firefighters with immediate access to water inside your premises.

Street Hydrant Testing
For underground street hydrants
Street hydrants are usually underground, accessed via hydrant lids and designed to provide a critical water supply for emergency services. These are often required to be tested when new developments are being certified, during site handovers, or as part of annual compliance.
Building Hydrant Testing







Our Process Includes:
Flow and pressure testing of all on-site hydrants
Verification that water supply meets design and Standard requirements
Recording results in compliance with AS 1851
Identifying any faults, obstructions or low-flow issues
Providing clear reports with recommendations for rectification
Why It Matters:
- Proves compliance with building and WHS regulations
- Ensures your fire systems are fully functional in an emergency
- Reduces insurance risks by demonstrating readiness
Street Hydrant Testing






Our Testing Process Includes:
- Flow and pressure testing of street hydrants to confirm supply capacity
- Recording and certifying results in line with AS 2419 and local authority requirements
- Coordination with local water authorities as needed
- Identification of supply issues and recommendations for remediation
Why It Matters:
Demonstrates compliance for building approvals and certifications
Confirms that the water authority supply meets the site’s fire protection design
Ensures firefighters have reliable access to water in the event of a fire
Why Choose Critical Fire?
Experienced
Experienced team with specialist hydrant testing equipment.
Compliant
Testing to the latest Australian Standards (AS 1851 and AS 2419)
Audit-Ready
Clear, audit-ready reports for regulators, insurers and WHS compliance
Efficient
Fast turnaround and minimal disruption to your site.
Ready to feel confident about fire safety?
Book your free Fire Safety Assessment. Get a clear plan aligned to AS 1851 with simple next steps.