Electrical Infrastructure
Complete electrical construction, upgrades and commissioning for complex facilities.
Learn moreIndustrial · Defence · Food & Beverage · CommercialElectrical infrastructure
Electrical infrastructure
where reliability matters.
On Top delivers electrical, communications, security and control systems across live, specialised and highly regulated facilities throughout NSW.
Who we are
A project contractor with practical management at every level.
Founded and managed by electricians, On Top combines technical knowledge with disciplined commercial and project delivery.
We work with head contractors, asset owners and government clients to deliver new installations, infrastructure upgrades and complex refurbishments—often within facilities that must remain operational.
About On TopCore capabilities
View all services One coordinated electrical package.
Communications & Fibre
Structured communications systems designed, installed and tested in-house.
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Security Systems
Licensed security infrastructure for controlled, monitored and high-security environments.
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Automation & Controls
Practical control solutions that improve operation, visibility and energy performance.
Learn moreWhere we work
Built around demanding operating environments.
Government & Defence
Electrical delivery within secure, operational and highly regulated facilities across NSW.
Industrial
Infrastructure, controls and staged upgrades for production, logistics and process environments.
Food & Beverage
Reliable electrical systems for manufacturing, processing and temperature-controlled facilities.
Commercial Fit-Out
Integrated electrical, data and lighting control systems for modern workplaces and public facilities.
Selected work
All projectsProjects that show the depth of our capability.
Commercial Fit-OutAugust 2025 – November 2025 · Commercial Fit-Out
Anzac Rifle Range, Malabar
The Anzac Rifle Range project involved the removal of existing electrical infrastructure and installation of new power and lighting systems along the rear of a new retaining wall.
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Government & DefenceAugust 2025 – November 2025 · Government & Defence
RAAF Richmond Building 107
The RAAF Richmond Building 107 project involved the complete electrical design and construction of a new power and lighting system within a live operational Defence facility.
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Commercial Fit-OutJuly 2025 – November 2025 · Commercial Fit-Out
Taronga Zoo Platypus Research Centre
The Taronga Zoo Platypus Research Centre project involved a complete electrical infrastructure upgrade to support specialised aquatic research facilities and life-support systems for the platypus habitat.
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Commercial Fit-OutJuly 2025 – November 2025 · Commercial Fit-Out
Jesus Family Centre
The Jesus Family Centre project involved the complete electrical fit-out and infrastructure upgrade of a refurbished worship and community facility designed for congregational gatherings and events.
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Government & DefenceMarch 2025 – November 2025 · Government & Defence
Project Blue
This highly secure and classified facility included the installation of new electrical infrastructure required to meet strict client security protocols.
View projectCommercial Fit-Out
February 2025 – November 2025 · Commercial Fit-Out
Wingecarribee Animal Shelter
The Animal Shelter project involved the complete electrical installation for a modern animal-care and adoption facility designed to house up to 65 cats and 24 dogs across adoption, isolation and impound areas. The facility also includes reception areas, offices, laundry, food-preparation spaces, grooming rooms, storage, staff amenities and extensive outdoor enclosures.
View projectHow we deliver
Program-focused without losing control of quality.
Plan the constraints
We review staging, interfaces, shutdowns, access, procurement and documentation before they become site problems.
Manage with trade knowledge
Our management team understands how the work is physically installed and how decisions affect program and quality.
Commission and hand over properly
Testing, labelling, as-builts and close-out are treated as part of delivery—not an afterthought.