GEMM is a family owned business that prides itself on superior workmanship and professional, courteous customer service.  


Established 10 years ago GEMM has built a solid reputation as an industry professional that still focusses on old fashion customer service.

GEMM obtains a majority of its work though referrals and industry leads. With a strong focus on communication and project management we can ensure that your bathroom renovation, kitchen renovation or commercial fit out runs without issue, and you have a room you envisaged and are truly proud of.

GEMM has a detailed knowledge of the building industry and has been the drive behind recruiting the most competent, efficient and motivated team to run and create the perfect Project

If you are also considering kitchen remodeling or laundry renovation in conjunction with remodeling or renovating your bathrooms, GEMM can handle the entire project, meaning you deal with only one company from design to completion.

GEMM is part of the Consolidated Systems Group. This ensures that trades and services for your Project won’t be subcontracted out, and we stay in control


  • Commercial and Domestic Bathroom Renovations

  • Office Fit Outs

  • Ceiling Installation and Repairs

  • Commercial and Domestic Demolition

  • Carpentry

  • Tiling

  • General Trade Services

  • Asbestos Removal (licence number WARA1653)

Gavin and the team at GEMM Commercial have been our main contractors for many years. They provide our company with a wide range of services from bathroom renovations and building works through to the installation of custom furniture. Gavin has always kept clear lines of communication open during each project and he and his team always exceed our expectations. GEMM Commercial will continue to be a major part of the team here at GVM Solutions and I would have no hesitations recommending them to anyone.
— Vaughn Roberts, GVM Solutions

 Ready to begin? Get started with us today.



How much does a bathroom renovation cost?

A standard bathroom renovation can cost anywhere from $12,000 to $16,000 inclusive of fixtures and fitting selection.

How long does a renovation take?

This depends on a number of factors but on average a standard bathroom renovation can take between two and a half weeks, dependant on shower screen selection

How long does the warranty last on my renovation with GEMM?

We can provide a warranty on fixtures and fittings based on manufacturers recommendations, and 7 years for all plumbing and works.

Do you renovate commercial properties?

Yes, a lot of our work is commercial bathrooms and offices. We offer an after hours service to renovate the area to minimise disruption to office staff and clients/guests.