About Us

Mainswest Pty Ltd is a civil and electrical contracting organisation specialising in the construction
and maintenance of underground utilities for both private and government clients throughout
Western Australia.

Mainswest Services

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Underground Power

The State Underground Power Project (SUPP) in conjunction with the Office of Energy, Western Power and the relevant Local ...
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Communication Services

Mainswest have been heavily involved in the construction roll out of the NBN since October 2013 for NBN principal contractors ‘Fulton Hogan’ and ‘Downer Group’...
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Commercial Construction

Mainswest was enlisted by Georgiou to supply and install 35 street light poles including all excavation, concrete footings, conduit, cabling, switchboards...
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Substation Upgrades

Mainswest Pty Ltd is Western Power accredited to perform substation upgrades and maintenance including the following recent projects...
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Technical Services

Mainswest is a specialist in High Energy Services including equipment installations, servicing, testing and repairs. Mainswest is currently completing numerous high....
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Subdivisional Works

Mainswest has completed numerous subdivision projects for various developers, builders and asset owners including RJ Vincent, Georgiou Group...
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Core Competencies

Mainswest combines its commitment to quality and professionalism with the energy
and innovation necessary to provide cost effective, end-to-end services to clients.

Projects

News

Shelley West Breaking Ground Ceremony 1

Shelley West Breaking Ground Ceremony

Exciting times ahead for residents of Shelley West as Mainswest get underway in Q3 2020 in delivering underground power in conjunction with the State Government,…
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Trigg SUPP project – Last Pole Ceremony 3

Trigg Last Pole Ceremony

Traditionally a last pole ceremony is held at the conclusion of a successful Underground Power Project.
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Trigg Last Pole Ceremony 2

Scarborough NRUPP Pilot Program

Western Power constantly renew and upgrade the distribution overhead network when assets are coming to the end of their service life. Traditionally, the work involves…
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