About the Company A well-established and growing building services contractor based in Cheam is seeking a highly experienced Senior Mechanical Estimator to join their team. The company delivers high-quality mechanical installations across commercial, residential, leisure, healthcare, and public sector projects. Role Overview The Senior Mechanical Estimator will play a key role in the pre-construction team, responsible for producing accurate and competitive tenders for mechanical building services projects ranging from £250k to £10m+. This is a strategic role requiring strong technical expertise, commercial awareness, and the ability to work collaboratively with clients, suppliers, and internal teams. Key Responsibilities * Prepare detailed and accurate mechanical estimates, including HVAC, plumbing, public health, and associated systems. * Review tender documentation, specifications, and drawings to prepare costs and methodologies. * Conduct site visits where necessary to gather project information. * Obtain competitive quotations from suppliers and subcontractors, building strong working relationships. * Develop value engineering solutions and alternative design options to strengthen bid competitiveness. * Prepare tender summaries, mark-ups, risk registers, and handover documentation for the delivery team. * Assist with bid interviews,...