Temporary Builder's Service (TBS)
Fast temporary builder's service installation for residential and commercial construction sites across Sydney
Builder's Power, On Time & On Site
A Temporary Builder's Service (TBS) is a metered electrical supply installed specifically for a construction site, allowing builders and trades to power tools, lighting, and site equipment during the construction period. A TBS is a formal connection to the Ausgrid or Endeavour Energy network — not a temporary extension lead from a neighbour — and requires a Level 2 ASP to apply for the connection, install the service mains, and arrange metering through an accredited metering coordinator. Single phase TBS suits most residential construction; three phase is required for sites with large equipment, welders, or multiple high-demand trades working concurrently.
The TBS is one of the most common Level 2 jobs across Greater Sydney's active construction market. Knockdown-rebuilds in established suburbs — Inner West, Northern Beaches, Eastern Suburbs — require a TBS immediately after demolition while the permanent connection is being designed and approved. Greenfield estates in Marsden Park, Box Hill, and Gledswood Hills require TBS installations across multiple lots simultaneously. We understand construction programmes and install TBS connections fast to keep your site live and your trades working.
TBS Installation Process
DNSP Application
We apply to Ausgrid or Endeavour Energy for a temporary connection, specifying single or three phase supply and site load requirements.
Connection Approval
The DNSP approves the temporary connection point and confirms supply availability at the site boundary.
Service Installation
We install TBS service mains from the network connection point to the temporary switchboard or builder's pole.
Metering & Energisation
We install the temporary meter, register the NMI with AEMO, and coordinate DNSP energisation.
Handover
Your site is live, the meter is in the builder's name, and documentation is provided for the duration of construction.
DNSP Application
We apply to Ausgrid or Endeavour Energy for a temporary connection, specifying single or three phase supply and site load requirements.
Connection Approval
The DNSP approves the temporary connection point and confirms supply availability at the site boundary.
Service Installation
We install TBS service mains from the network connection point to the temporary switchboard or builder's pole.
Metering & Energisation
We install the temporary meter, register the NMI with AEMO, and coordinate DNSP energisation.
Handover
Your site is live, the meter is in the builder's name, and documentation is provided for the duration of construction.
Fully Accredited & Compliant
Licensed, accredited, and compliant with all NSW electrical and network requirements
Level 2 ASP — Class 2A & 2D Accreditation (NSW Fair Trading)
Current ASP Class 2A and 2D accreditation registered with NSW Fair Trading, authorising temporary service mains and TBS connection works.
Ausgrid Accredited Service Provider
Authorised for temporary builder's service installation across the Ausgrid network area covering Sydney, Inner West, Eastern Suburbs, and Northern Beaches.
Endeavour Energy Accredited Service Provider
Accredited for TBS installation across Western Sydney, Hills District, and Sutherland Shire Endeavour Energy network areas.
Accredited Metering Coordinator (AEMO)
Registered to create temporary NMIs and install metering for builder's services in the AEMO registry.
AS/NZS 3000 Wiring Rules Compliant
All temporary switchboard and site electrical installations completed to the Wiring Rules with certificate of compliance issued.
Work Health & Safety Act NSW Compliant
All TBS installations completed under documented SWMS, isolation procedures, and WHS requirements for construction site work.
When Do You Need a Temporary Builder's Service?
Knockdown-rebuild requiring site power immediately after demolition
Once the existing dwelling is demolished, permanent supply is disconnected — a TBS provides power for the full construction phase until permanent energisation.
New residential build on a lot with no existing supply
Vacant greenfield or infill lots with no prior connection require a TBS before trades can commence on site.
Commercial construction site requiring metered three phase supply
Large commercial fitouts and industrial builds need three phase TBS for cranes, welders, and multiple high-demand trades working concurrently.
Greenfield estate lot requiring TBS before permanent connection
New estate lots in Marsden Park, Box Hill, and Oran Park commonly require TBS energisation before permanent connection is available.
Major renovation where the permanent supply must be disconnected during works
Full renovations requiring permanent supply isolation need a TBS to keep the site powered for the duration of construction works.
Why Choose Sedgman for TBS Installation?
Fast Installation
We understand construction timelines. Our team installs TBS connections quickly once DNSP approval is received to keep your programme on track.
Single & Three Phase
Whether you need a basic single phase residential TBS or a three phase supply for a large commercial site, we size and install the right connection for your project.
Full Process Managed
DNSP application, metering, NMI registration, and energisation all handled by Sedgman — one call, one contractor.
Other Temporary Supply Services We Offer
Frequently asked questions
Straight answers about temporary builder's service (TBS) in Sydney.
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Contact Sedgman Electrics for temporary builder's service (TBS) across Sydney.
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