Aqua Build Australia is seeking an experienced, hands‑on Remedial Multi‑Skilled Technician to work across remedial building projects throughout Sydney.

This position requires someone who can independently investigate building defects, identify practical repair solutions and complete high-quality remedial work without constant supervision. Strong waterproofing knowledge and practical waterproofing experience are essential.

This is not a general labouring or basic handyman position. The successful applicant will be an experienced tradesperson or remedial technician who takes ownership of its work, thinks through problems and can confidently complete a broad range of repairs.

Key responsibilities

Independently assess, plan and complete remedial building repairs.

Investigate water ingress and building defects to help identify their source— not simply repair visible damage.

Select and apply appropriate waterproofing products and repair methods in accordance with manufacturer requirements.

Identify site issues, propose practical solutions and communicate them clearly before proceeding.

Complete work to a consistently high standard of workmanship, presentation and safety.

Read and interpret construction drawings, specifications, scopes of work and product documentation.

Coordinate daily activities with the Project Manager, Site Supervisor, clients, subcontractors and occupants.

Provide clear progress updates, photographs and records of completed work.

Identify additional defects, access issues or scope changes promptly.

Maintain a clean, organised and protected work area.

Comply with applicable building requirements, SafeWork NSW obligations, SWMS and company procedures.

Typical remedial work

Projects may include:





Liquid and sheet membrane waterproofing.

Balcony, bathroom, façade and external wall waterproofing repairs.

Water-ingress investigation and leak rectification.

Door and window repairs, sealing and replacement.

Cavity flashing and brickwork repairs.

Tiling, screeding and associated substrate preparation.

Concrete and render repairs.

Plasterboard, patching and painting.

Sealant and expansion-joint replacement.

General carpentry and building repairs.

The ability to competently complete several of these activities is essential.

Essential experience and capabilities

At least five years’ relevant experience in remedial construction, waterproofing, building repairs or a comparable multi-trade role.

Demonstrated practical experience completing waterproofing repairs.

Sound knowledge of substrate preparation, primers, membranes, detailing, terminations, penetrations, joints and compatible materials.

Ability to investigate defects and understand how water may be entering and travelling through a building.

Proven ability to work independently, manage daily tasks and complete repairs without continual direction.

Strong practical problem-solving skills and sound judgement.

High standard of workmanship and attention to detail.

Ability to read drawings, specifications and written scopes of work.

Clear communication skills and a professional manner when dealing with clients,



consultants and building occupants.

Good understanding of construction safety requirements.

Physically capable of performing the hands‑on requirements of the position.

Valid Australian driver licence, White Card and Australian working rights.

Tools and transport

Applicants must have:

A reliable vehicle suitable for travelling between Sydney project sites.

Their own general hand tools.

A valid construction White Card.

What we offer

Competitive hourly rate of $50–$60, based on demonstrated experience and capability.

Full-time employment with an immediate start available.

Varied remedial projects across Sydney.

A professional, supportive and collaborative working environment.

The opportunity to take ownership of your work and develop with a growing remedial building company.

Direct access to experienced project management and site supervision.

About Aqua Build Australia

Aqua Build Australia is a Sydney-based remedial building contractor specialising in waterproofing, water-ingress rectification, building repairs and defect remediation across strata and commercial properties.

Our team brings more than 20 years of construction and project management experience. We apply structured planning, technical understanding and professional project delivery to every job. We value quality workmanship, accountability, clear communication and long-term relationships with our clients.

This is more than just another trades role, it’s an opportunity to join a fast-growing remedial building company, take real ownership of your work and build a long-term career with genuine opportunities to step up as the business grows.

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📌 Remedial Multi-Skilled Technician (Sydney)
🏢 Aqua Build Australia
📍 Sydney