About Us

About Us

Mousellis & Sons Pty Ltd is a proud Darwin based family owned and operated business that has operated in Darwin for over 45 years.


We are known to be one of the longest established family owned and operated civil, hydraulic and construction businesses in the Northern Territory. We employ more than twenty-two local experienced and qualified staff. We prioritise only utilising local suppliers and local sub contractors to assist in undertaking our works in the construction and maintenance of Water Supply and Sewerage Systems.

Mousellis and Sons history stretches back to the 1970’s when they were drainage contractors known as T &M Drainer. Fast forward to 1986 and Themelis Mousellis Snr established Mousellis & Sons to service residential customers by providing plumbing and drainage services. Today, the business has since been passed down to their sons John and Bill and is now widely known as Mousellis & Sons.


We have continued to grow, building on our experience, technical capability and delivering on our reputation for exceptional results. We have diversified our operations to offer a multitude of services in the civil, construction, demolition, hydraulic, plumbing and electrical civil works areas, as well as the recycling of concrete waste and removal of asbestos. Mousellis & Sons holds a Class B Asbestos Removal License.

We support the community that supports us

As born and bred Territorians, John and Bill Mousellis, and their respective families are heavily invested in the local community. Their contribution to the community and developing the Top End extends from our partnerships formed with community organisations, not for profits, memberships, affiliations and to the development and growth of our industry.

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