Senior Estimator – Mechanical Pipework Location: Basildon, Essex (with occasional visits to a Central London office and project sites) Schedule: Monday to Friday (early Friday finish) Salary: £60,000 – £80,000 (dependent on experience) Job Type: Full-time Overview A well-established specialist contractor within the mechanical pipework and public health sector is seeking an experienced Senior Estimator to join their expanding pre-construction team. The company operates across London and the South East, delivering projects within Commercial Developments, Data Centres, Healthcare, Education, Transport, Banking, and Residential sectors. With over 20 years’ experience and a highly skilled team, they deliver reliable and efficient mechanical solutions across a wide range of industries. Role Summary The Senior Estimator will lead the tendering and estimation process for mechanical pipework, public health, and offsite fabrication projects. You will ensure estimates are accurate, commercially competitive, and aligned with business objectives. This position involves close collaboration with project, commercial, and engineering teams, as well as supporting tender strategy, mentoring junior estimators, and strengthening the business pipeline. Key Responsibilities * Lead preparation of detailed cost estimates and tender submissions * Interpret engineering drawings and carry out take-offs (Ensign experience beneficial) * Develop tender strategies ensuring technical and commercial compliance * Analyse subcontractor and supplier quotations for competitiveness and compliance * Review tender documents, specifications, and contractual requirements * Prepare and present tender adjudications to senior management * Support value engineering initiatives and identify cost-saving opportunities * Guide and mentor junior estimators, promoting best practice * Liaise with clients, consultants, and supply chain partners throughout the tender process * Maintain knowledge of market trends, pricing, and industry developments * Support project handovers and assist operational teams with cost tracking, variations, and commercial control Skills, Experience & Qualifications Essential: * Minimum 5 years’ estimating experience within the mechanical building services sector * Proven experience delivering estimates for projects valued £500k–£5m * Strong technical understanding of mechanical and public health systems * Excellent numerical, analytical, and problem-solving skills * Proficient in Microsoft Excel and Word * Strong communication and presentation skills * Ability to manage multiple tenders under tight deadlines Preferred: * Experience using Ensign Mechanical Estimating Software (training available) * HNC/HND/Degree in Mechanical Engineering, Building Services, or related discipline * Experience in design & build projects or offsite fabrication * Leadership or mentoring experience Why Join * Established contractor with a diverse project portfolio * Supportive, collaborative work environment * Professional development and training opportunities * Early finish on Fridays * Competitive salary and benefits package