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
- Chance to work on diverse and exciting projects
- Supportive and professional team
- Stable, long-term position with a continually growing company

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📌 Senior Plumbing Estimator (Western Australia)
🏢 Holdfast Contracting
📍 Western Australia