Building Services Engineering

Expert Consulting - Building Services Engineering

GES is a Sydney-based Building Services Engineering consultancy specialising in energy-efficient, eco-friendly Mechanical HVAC design. Through our trusted specialist partners, we also provide Electrical, Hydraulic, Acoustic and Fire—enabling fully integrated building solutions.

Building services—mechanical, electrical, hydraulic, fire and controls—are the primary drivers of a building’s energy use. That’s why we engineer every system for maximum sustainability, efficiency and long-term value.

From concept design through to construction and commissioning, we deliver tailored, integrated solutions that optimise comfort, safety and operating costs. Let us help you create smarter, greener buildings.

Collaboratively Establish

• Site inspection

• Design Brief

Our process begins with a thorough assessment of our client's needs.

Collaboratively Create

• Concept Sketches

• Detail Design

• Tender documentation

• Construction documentation

• Design Certification

We collaborate closely with clients and stakeholders during the design phases, providing expert consultation to optimise Building Services systems for safety, sustainability, efficiency, and occupant comfort. Through tailored solutions and value engineering, we ensure the best outcomes for every project.

Collaboratively Review

• Contractor documentation review

• Construction inspection & reporting

• Peer review services

Throughout the process, designs are reviewed to ensure compliance and constructability. We also have our Tender and Construction designs independently reviewed (QA) by an external sub-consultative expert to ensure the upmost quality is maintained.

How we earn your trust

Founder-led delivery:

• Design: The founder personally completes the majority of the mechanical design and coordinates other disciplines for fully integrated outcomes.

• Drafting: is completed by the team and independently quality-assured.

• Meetings & site inspections: founder attends every meeting and site visit, from concept through to hand-over.

Founder’s core experience and credentials:

• 21 years Mechanical Engineering experience (LinkedIn):

  • Tier 1 & Tier 2 consultancies - GHD, WSP, Northrop & JN.

  • HVAC mechanical contractor (Design & Construct) - Velocity Air

  • HVAC equipment design & manufacturing - Tivok Australia

• Principal Design Practitioner (DBP Act NSW Fair Trading) - Registration

• Chartered Professional Engineer (CPEng) - Badge

• National Engineering Register (NER) - Badge

★★★★★

”GES is a forward-thinking consultancy that blends smart technology with creative, practical design. They handled every deliverable with utmost care, keeping us involved at each step. The team went above and beyond to achieve the best outcome and keep the programme on track. Couldn’t be happier with the service and result.”

- Mena I.

”Great service, highly recommended! Thank you!”

- Ayman L.

★★★★★

★★★★★

”Emmanuel is a very experienced & professional engineer. With so many years in the field he truly knows his craft. I highly recommend & his engineering services especially for HVAC related engineering. Green Engineering’s high attention to detail, risk assessments & knowledge about HVAC equipment exceeds expectations. I wouldn’t trust anyone else when it comes to great customer service, quality assurance & reasonable prices. Green Engineering never misses a beat & I will be recommending them continuously.”

- Georgia G.

We may be the new name in town, but our early clients already rave about the quality and service we deliver.

Customer testimonials