
About MJI Design
At MJI Design, we specialise in hydraulic engineering with a focus on clarity, efficiency, and real-world application. Established in 2019, we’ve grown into a trusted design, drafting, and modelling firm committed to delivering value-driven hydraulic solutions. we’re known for producing cost-effective, practical systems that integrate seamlessly into the built environment. We don’t just design hydraulics – we engineer smarter, more sustainable outcomes.
Services
Estimating
Shop Drawings
As-Built Drawings
Fire Block Plans
Penetration Drawings
Specialist Design Support
General Plumbing Design & Documentation
Sewer & Trade Waste Drainage
Hot Water System Design & Implementation
Stormwater & Wastewater Management
Syphonic Drainage Design
Pump & Tank Design
CAD Design
Clash Detection
Gas System Design
On Site Detention Design
Performance Solutions
Value Management & Engineering
Assessment & Optimisation of Existing Systems
Coordination with Service Authorities
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