About Us

Diametric Engineers is a mechanical and electrical engineering company, based in Brisbane and Toowoomba specialising in the delivery of building services related designs. 


With an accumulated 40 years’ industry experience, the team at Diametric Engineers work closely with clients, architects, engineers, builders and contractors to delivery successful outcomes aligned with clients' goals and budgets. 

Company Profile

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Building Services Design

Building services engineering in accordance with the latest Building Code of Australia, Queensland Development Code, relevant client briefs (i.e. Queensland Health Infrastructure Guidelines etc) and industry best practice.

Mechanical Services

Systems include; air chilled water, water cooled chilled water, VRF and multi refrigerant air conditioning systems, BMS & DDC systems, passive and active ventilation, dust extraction, medical gases and medical suction, steam systems, fuel storage and reticulated welding gases, welding bay exhausts, commercial kitchen hood exhaust and make up, smoke hazard management, underfloor heating systems, commercial refrigeration and reticulated compressed air.

Electrical Services

Electrical design calculations including software modelling of lighting levels, maximum demand, cable sizing and protection settings.


Electrical documentation including:

•lighting, 

•emergency lighting, 

•power, 

•telecommunications, 

•electronic security, 

•fire detection, 

•lighting protection and emergency powe

Energy Efficiency

Completing Building Code of Australia Section J deemed to satisfy energy efficiency reports.

3D Revit + BIM Design

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We have 2D and 3D computer aided drafting systems and fully capable of integrating with traditional CAD packages, or 3D Models, depending on the projects’ requirements. 

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Core Values