Bourke Air is seeking a motivated and detail-oriented Mechanical Estimator to join our Estimating Department.

This role is responsible for assisting in the preparation, coordination and submission of accurate cost estimates and tender documentation for commercial HVAC and mechanical services projects.

Working closely with the Estimating Manager, suppliers, subcontractors and internal project teams, you will play an important role in supporting the tendering process and helping deliver commercially competitive project outcomes.

About the Role

Reporting to theEstimating Manager, the successful candidate will support the preparation of project estimates, tender submissions and associated documentation, ensuring accuracy, efficiency and alignment with Bourke Air’s commercial objectives.

You will be responsible for reviewing project documentation, completing quantity take-offs, coordinating supplier pricing and maintaining accurate estimating records while managing competing priorities and tender deadlines.

Key Responsibilities

Prepare accurate cost estimates and tender submissions for commercial HVAC and mechanical services projects.

Review project drawings, specifications and tender documentation to determine project scope and requirements.

Complete quantity take-offs and material calculations in accordance with project documentation.

Obtain and evaluate supplier and subcontractor pricing to support competitive and commercially viable tenders.

Assist in preparing tender clarifications, inclusions, exclusions and supporting documentation.

Coordinate tender deadlines and submission requirements in consultation with the Estimating Manager.

Maintain accurate estimating records, cost databases and project documentation.

Liaise with suppliers, subcontractors,



internal departments and project stakeholders throughout the tendering process.

Identify potential project risks, cost variations and value engineering opportunities.

Assist with project handovers to operational teams following successful tender awards.

Contribute to continuous improvement initiatives across estimating systems, processes and reporting.

Maintain confidentiality of commercial information, pricing structures and tender documentation.

Comply with company policies, procedures and workplace health and safety requirements.

About You

You are organised, analytical and commercially aware, with a strong eye for detail and the ability to work effectively in a quick-paced environment.

You will ideally have:

Previous experience in estimating, mechanical services, HVAC or commercial construction.

The ability to interpret technical drawings, specifications and project documentation.

Experience completing quantity take-offs and material calculations.

Familiarity with estimating software and Microsoft Office applications.

Strong written and verbal communication skills.

The ability to liaise professionally with suppliers, subcontractors and internal stakeholders.

Excellent organisational and time management skills.

A reliable, proactive and collaborative approach to your work.

Qualifications and Requirements

Certificate, Diploma or tertiary qualification in Mechanical Engineering (advantageous), Construction, Estimating or a related field.

Qualified mechanical tradespeople looking to move into an office-based estimating role.

Current driver's licence.

Construction Induction White Card.

Relevant experience in estimating, HVAC, mechanical services or commercial construction will be highly regarded.

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📌 Mechanical Estimator (Dandenong)
🏢 Bourke Air
📍 Dandenong