Holdfast Contracting is a well-established contractor delivering high-quality plumbing and civil services across the mining, industrial, commercial, and domestic sectors throughout Western Australia. We are known for delivering projects safely, efficiently, and to a high standard while building long-term relationships with our clients.
Due to continued growth, we are seeking an experienced
Senior Plumbing Estimator
to join our team.
About the Role
This is a senior position responsible for preparing accurate and competitive estimates across a diverse range of projects. You'll work closely with management, clients, suppliers, and subcontractors to secure profitable work while maintaining our high standards of quality and professionalism.
Key Responsibilities
Prepare detailed cost estimates and tender submissions
Review drawings, specifications, and contract documentation
Obtain and assess supplier and subcontractor quotations




Conduct site inspections when required
Identify project risks and value engineering opportunities
Liaise with clients during the tender process
Assist with project handovers to operations
Contribute to business development and identifying new opportunities
About You
Strong knowledge of mining, industrial, commercial and domestic plumbing
Ability to read and interpret technical drawings and specifications
Excellent communication and negotiation skills
High attention to detail with strong commercial awareness
Proficient in Microsoft Office and estimating software
What We Offer
Performance based bonus structure
Opportunity to work on diverse and exciting projects
Supportive and skilled team
Stable, long-term position with a continually growing company
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📌 Senior Plumbing Estimator (Western Australia)
🏢 Holdfast Contracting
📍 Western Australia