Hot Tapping & Property Service Tie-Ins
K&J Civil provides hot tapping (live tapping) and property service tie-ins for water infrastructure across Queensland. These works enable new properties and developments to connect to existing water networks without interrupting live supply, where permitted by the relevant authority.
All connections are delivered in accordance with Queensland Urban Utilities (QUU) and local authority requirements, using approved materials, methods and experienced personnel.
What Is Hot Tapping?
Hot tapping, also referred to as live tapping, is a controlled method of connecting a new service line to an existing pressurised water main without isolating or shutting down the network.
This technique is commonly used for:
- New residential property connections
- Small-scale commercial developments
- Urban environments where shutdowns are not permitted
Hot Tapping Methodology
Hot tapping involves the installation of a tapping saddle or fitting onto a live main, followed by precision drilling to create a new outlet while maintaining system pressure.
Key characteristics of hot tapping:
- No interruption to water supply
- Controlled drilling under pressure
- Authority-approved fittings and procedures
- Reduced disruption to surrounding properties
Typical Hot Tapping Connection Sizes
Hot tapping is generally used for smaller-diameter service connections, subject to authority approval.
Connection Type | Typical Sizes | Notes |
|---|---|---|
| Residential water services | Up to 50mm | Common hot tap application |
| Small commercial services | Up to 50mm | Subject to network conditions |
| Larger connections | 100mm – 300mm | Shutdown and isolation typically not required |
For larger connections, K&J Civil prepares detailed shutdown and connection plans in consultation with the authority.
Property Service Tie-Ins
Property service tie-ins form the critical link between a development and the existing water network. K&J Civil manages the full process, ensuring connections are compliant, accurately installed and safely commissioned.
Property service works include:
- Water service tie-ins
- Meter connection coordination
- Live and offline connections
- Trenching and service installation
- Testing and commissioning
When a Shutdown Is Required
Not all connections can be completed using hot tapping.
Shutdowns are typically required where:
- Larger diameter connections are required
- Network configuration restricts live tapping
- Authority standards prohibit live works
- Complex interfaces are present
In these cases, K&J Civil manages:
- Shutdown planning and approvals
- Customer notifications (where required)
- Isolation, connection and reinstatement
- Testing and return to service
Comparison – Hot Tapping vs Shutdown Connection
Aspect |
Hot Tapping |
Shutdown Connection |
|---|---|---|
| Water supply interruption | No | Yes (planned) |
| Typical sizes | Small – Large (Live connections) | All Sizes |
| Authority approvals | Required | Required |
| Network impact | Minimal | Managed interruption |
| Complexity | Medium – High | Medium–High |
Safety & Compliance
Hot tapping is a high-risk activity that requires experienced crews and strict controls.
Our safety controls include:
- Live service identification and verification
- Pressure-rated fittings and equipment
- Trench safety and confined space controls
- Emergency response procedures
- Authority inspection and sign-off
All works are completed in accordance with WHS legislation and authority standards.
Authority Coordination & Approvals
K&J Civil works closely with Queensland Urban Utilities and local councils to ensure all hot tapping and service tie-ins meet approval requirements.
We manage:
- Authority submissions and permits
- Connection approvals
- Inspection scheduling
- Compliance documentation
Early coordination reduces delays and ensures first-time approval.