Looking for a Trusted Duplex Builder in Sydney? Why We Recommend Pro Duplex

Looking for a trusted duplex builder in Sydney? High Demand Electrical recommends Pro Duplex, led by founder Patrick Ung, based on real jobs we have completed together across Sydney's inner west. We have handled the Level 2 ASP connections, switchboard work, three phase upgrades and emergency make safe response that duplex builds need, and found Pro Duplex straightforward to work with on site.

⚡ Quick Answers: Pro Duplex and duplex building in Sydney

• Who is Pro Duplex? A Sydney duplex design and build company founded by Patrick Ung, a trained civil engineer, operating out of Ryde and servicing Ryde, Parramatta, Canada Bay and Canterbury Bankstown.
• Why does High Demand Electrical recommend them? We have completed the electrical side of several of their projects, including a renovation and three phase upgrade in Ashfield and an extension in Leichhardt, and found their site coordination and communication genuinely easy to work with.
• Does a duplex need special electrical work? Yes. Most duplexes need two separately metered electrical installations, often a private power pole, and Level 2 ASP work that only an accredited provider like High Demand Electrical can legally carry out.
• What electrical services does High Demand Electrical provide on Pro Duplex builds? Level 2 ASP connections, disconnect and reconnect services, switchboard upgrades, smart meter installations and emergency make safe power restoration if anything goes wrong mid build.
• Is this a paid endorsement? No. This is a genuine recommendation based on jobs we have completed together and our firsthand experience working with Pro Duplex on site.

Why we are recommending a builder, not just answering an electrical question

Most of our blog content on hdlevel2electriciansydney.com.au answers electrical questions directly. This one is different. Sydney homeowners planning a duplex often ask us who to use as a builder, because a good electrical outcome on a duplex depends heavily on the builder getting the staging, the metering setup and the site coordination right from the start. Pro Duplex is one of the few duplex builders we have worked with repeatedly where that coordination has been consistently good, so we are comfortable putting our name behind the recommendation.

1. Who Pro Duplex is

Pro Duplex is led by Patrick Ung, who trained as a civil engineer before moving into residential building, with earlier experience on larger Sydney CBD projects before founding the business. According to Pro Duplex's own website, the company positions itself around direct access to Patrick as the founder rather than a call centre model, transparent fixed pricing with no hidden costs, and a three step process of consultation, site evaluation and tailored duplex design. They describe themselves as duplex specialists servicing Ryde, Parramatta, Canada Bay and Canterbury Bankstown, with testimonials from clients in North Kellyville and Ryde.

What we can speak to directly is our own experience working alongside them on site, job after job, which is exactly why we are comfortable recommending them.

2. What we have actually worked on together

High Demand Electrical has completed Level 2 ASP and general electrical scopes for Pro Duplex on several Sydney jobs. In Ashfield, that included a full rough in of power, lighting and data for a renovation and first floor addition, plus a single phase to three phase upgrade and a smart meter installation to support the new load. We have also handled a first floor extension in Leichhardt and a full bathroom and ensuite electrical fit out on another of their projects. On each job, scope came through clearly, site access was organised properly, and variations were communicated rather than discovered on the day, which matters more than it sounds like when you are the trade trying to schedule a Level 2 ASP crew around a live build.

3. Why duplex electrical work needs a Level 2 ASP, not just any electrician

A duplex is two separate dwellings on one block, and under SIRNSW rules, each dwelling generally needs its own separately metered electrical supply. That often means two sets of consumer mains, sometimes two separate private power poles, and connection work with Ausgrid or Endeavour Energy that only a Level 2 ASP accredited provider can legally perform. We have written in detail about what this involves in our guide to duplex electrical connections for builders, our overview of connections for duplexes and granny flats, and our piece on coordinating two private poles on one block with an MDC when a dual occupancy site needs multiple simultaneous connections. If you are not sure which distributor applies to your site, you can check your network area in seconds with our postcode checker before you get too far into planning.

Getting this wrong, or leaving it to the last minute, is one of the most common causes of duplex build delays we see. A builder who understands this early, and plans the electrical staging into the build program rather than treating it as an afterthought, saves everyone time and money. This is part of why the Ashfield job went smoothly: the three phase upgrade and smart meter installation were planned into the renovation program early on rather than added once walls were already closed up.

4. How High Demand Electrical helps on duplex builds

As one of Sydney's most trusted Level 2 ASPs, we work directly with builders like Pro Duplex from the planning stage, not just when cables need running. That includes advising on switchboard upgrades and metering layout before footings go in, handling disconnect and reconnect services during staged works, arranging single phase to three phase upgrades and smart meter upgrades where a renovation or addition increases the load, and being available for emergency make safe power restoration if a fault or damage happens mid construction. We are a licensed local team, not a call centre, servicing builders and homeowners across Sydney's inner west and beyond.

Duplex Builder Sydney FAQs

Do I need a Level 2 electrician for a duplex build?

Yes, in almost every case, because each dwelling needs its own metered supply and the connection work to Ausgrid or Endeavour Energy requires Level 2 ASP accreditation. See our Level 2 electrician Sydney service page.

How early should electrical planning start on a duplex project?

Ideally during design, well before construction, since metering layout and any private power pole requirements can affect site planning and distributor application lead times.

Can the same electrician handle both dwellings in a duplex?

Yes, and it is generally better that way, since one provider coordinating both connections avoids the miscommunication that happens when two separate trades split the site.

What happens if something goes wrong electrically during a duplex build?

A Level 2 ASP like High Demand Electrical can respond with emergency make safe work to restore power safely, then assess what permanent repair or reconnection is needed. See our emergency make safe page.

Is Pro Duplex only available in certain parts of Sydney?

Based on their own website, they focus on Ryde, Parramatta, Canada Bay and Canterbury Bankstown, though it is worth confirming directly with them whether your specific suburb is within reach.

Thinking about a duplex build? If you are planning a duplex and want a builder who takes electrical coordination seriously, we are happy to recommend Pro Duplex, led by Patrick Ung. For the electrical side of any duplex, extension or renovation project, get a Level 2 electrician quote from High Demand Electrical, or call 0402 559 777. Every job needs a site assessment before scope or pricing can be confirmed.