Ingenious Design and Consultants — Plumbing Engineering

Water systems designed to flow.

Our plumbing engineers design clean, efficient, and code-compliant water supply, drainage, and sanitation systems for buildings of every type and scale.

Plumbing design services

Full-spectrum plumbing engineering

Cold and hot water supply

Pipe sizing, pressure zoning, and distribution layouts for reliable supply at every fixture

Sanitary drainage design

Gravity drainage, venting, and trap design for soil and waste systems to code

Stormwater and rainwater

Roof drainage, downpipes, surface runoff, and rainwater harvesting system design

Fire suppression systems

Sprinkler and hydrant system layouts sized to life safety standards

Hot water plant design

Central and localised hot water systems including solar thermal and heat pump options

Greywater and recycled water

Greywater reuse and recycled water reticulation for sustainable building design

Pump and pressurisation systems

Booster pump sets, pressure vessels, and duty-standby configurations for multi-storey buildings

Plumbing drawings and documentation

Full schematic and layout drawings with specifications ready for permits and construction

Our engineering process

A methodical approach from demand assessment to handover — so every pipe, valve, and fixture is accounted for before work begins on site.

01. Demand and utility assessment
We establish peak water demand, available mains pressure, and drainage invert levels before any system is sized or routed.
02. System concept and layout
We define the supply and drainage architecture — riser locations, plant room requirements, and service zone strategy — coordinated with the architectural and structural layouts.
03. Detailed pipe sizing and calculations
Flow rates, pipe diameters, pressure losses, and drainage gradients — all calculated and documented so every design decision is defensible.
04. Construction drawings and specifications
Complete schematic diagrams, floor plan layouts, riser drawings, and technical specifications ready for authority approvals and contractor tendering.
05. Site support and commissioning
We review shop drawings, respond to on-site queries, and witness pressure tests and commissioning to confirm the installation meets the design.

Why our plumbing team

Calculated, not estimated

Every pipe size, gradient, and pump selection is backed by documented hydraulic calculations — not rules of thumb carried over from the last job.

Coordinated with all disciplines

We route pipework in coordination with structural and electrical teams, resolving clashes on paper before they become costly site problems.

Water-efficient design

From rainwater harvesting to greywater reuse, we design systems that reduce consumption and support green building certifications.

On-time delivery

Plumbing drawings drive early contractor procurement. We treat your programme as our own and deliver on the dates that matter.

Common questions

Have a specific plumbing challenge? We’re happy to discuss it before you commit to anything.

What types of buildings do you design plumbing systems for?

Residential homes, apartments, offices, retail centres, hospitals, schools, hotels, and industrial facilities — at any scale or complexity.

Yes. We design wet-pipe sprinkler systems, hydrant and hose reel layouts, and fire pump configurations sized to local fire safety standards.

Absolutely. We design rainwater collection, filtration, storage, and reticulation systems that integrate with the building’s main plumbing and support sustainability targets.

Yes. Our deliverables include all schematic diagrams, layout drawings, and hydraulic calculations needed for building authority and water utility submissions.

Yes. We integrate into existing project teams and coordinate directly with architects, structural engineers, and contractors without disruption to your workflow.

Build with confidence

Great buildings need plumbing that works

Tell us about your project and our plumbing engineers will design a system that delivers clean water, removes waste, and holds up for decades.