HVAC Design & Engineering
HVAC system design and performance optimisation
Energy-efficient and compliant system solution
Project & Construction Support
Site inspections and construction phase services
Design coordination and RFI support
Technical Documentation & Modelling
CAD & BIM documentation
Thermal modelling and System analysis
Practical Engineering Solutions
From concept through to construction, we bring technical precision and creative thinking to every project, whether it’s a commercial office fitout, a healthcare facility or a large-scale mixed-use development.
At Hewitt Consulting Engineers, we specialise in mechanical building services engineering and multidiscipline solutions across Sydney, NSW, and the East Coast of Australia. With a strong focus on practical engineering, we help create environments that are comfortable, functional & energy-efficient.
Our Services
Hewitt Consulting Engineers offers a comprehensive suite of mechanical and multidisciplinary services across all project types, including new builds, refurbishments, and infrastructure upgrades across NSW and the eastern seaboard. These services include:
Mechanical Engineering Building Services (HVAC)
Multidisciplinary Engineering Services
Industrial Engineering Services
Expert Witness
Drafting Services
Technical Inspections & Engineering Reports
Computational Fluid Dynamics (CFD)
Mechanical Acoustic Assessments
Clients We’ve Served
Trusted by leading organizations to deliver engineering excellence across Australia
Our Projects
Our team has successfully delivered engineering solutions across a wide range of sectors. From large-scale developments to complex refurbishments, we bring tailored expertise and a collaborative approach to every project no matter the size or scope.
Residential
Education
Aged Care
Hospitality, Leisure & Hotels
Office Spaces
Health Care
Government
Pharmaceutical, Laboratory & Food Production
Retail
Commercial
Electrification Projects
Why Choose Hewitt Consulting Engineers?
Based in Sydney, and servicing projects across NSW, Queensland, and Victoria, Hewitt Consulting Engineers brings:
Flexible solutions tailored to project-specific budgets, timeframes, and sustainability targets
Comprehensive knowledge of local building codes, NCC/BCA compliance, and Australian Standards
Proven experience in many sectors, including commercial, education, healthcare, and residential sectors
A commitment to quality, collaboration, and engineering integrity
Ready to discuss your project?
Our team is here to help with your engineering needs.