Senior Process Mechanical Estimator - Water
We are seeking a Senior Process Mechanical Estimator specialising in water and wastewater projects to lead the preparation of accurate, competitive, and commercially robust estimates. This role will support the delivery of complex infrastructure schemes, including water treatment plants, wastewater treatment facilities, pumping stations, pipelines, chemical dosing systems, sludge treatment, and associated mechanical process equipment.
You will review tender documentation, drawings, specifications, schedules, and contract requirements to develop detailed estimates from first principles. Responsibilities will include preparing bills of quantities, cost plans, labour and plant allowances, subcontractor and supplier enquiries, equipment pricing, and risk and opportunity assessments. You will obtain and evaluate quotations, challenge assumptions, identify scope gaps, and ensure all estimates reflect project deliverables, programme requirements, and applicable standards. You will also contribute to value engineering, constructability reviews, tender clarifications, and the preparation of commercial submissions and supporting documentation.
The successful candidate will have substantial estimating experience within the water, wastewater, process engineering, or wider civil engineering sector, with a strong understanding of mechanical process installations and construction methodologies. Experience estimating major tenders and familiarity with relevant equipment, materials, subcontract packages, and supply-chain markets are essential. You should be confident interpreting technical drawings and specifications, using estimating and cost-management software, and analysing complex data accurately. Strong commercial awareness, attention to detail, organisation, and communication skills are required, together with the ability to work independently and collaborate effectively with engineering, procurement, commercial, and project delivery teams. A relevant engineering, quantity surveying, or construction-related qualification would be advantageous.
Senior Process Mechanical Estimator - Water
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