Mechanical Estimator

We’re looking for an experienced and detail-driven Mechanical Estimator to join our Estimating Team within the Specialist Services division. This role will support a range of exciting and complex projects across multiple business units including Nuclear, Electrical & Instrumentation (E&I), Cleanrooms, and Infrastructure.

As part of a collaborative and high-performing team, you’ll be responsible for preparing accurate, competitive cost proposals for industrial and commercial projects. You’ll work closely with clients, subcontractors, and internal stakeholders to ensure our submissions are technically sound, commercially viable, and aligned with project goals.

This is a flexible location role, with the opportunity to support projects across the UK. If you’re looking to grow your career in a dynamic environment where your contribution directly supports critical infrastructure and energy solutions — we’d love to hear from you.

Who We’re Looking For

• Proven experience in construction estimating within an industrial or commercial environment. (essential)
• Strong commercial acumen and a high level of accuracy in cost planning and proposals.
• Demonstrated ability to deliver high-quality estimating submissions that align with client and project requirements.
• Excellent communication and presentation skills, with the ability to engage confidently with clients and internal stakeholders.
• Proficient in Microsoft Office applications (Excel, Word, Outlook).
• Experience using estimating software (e.g., Trimble, Causeway, or similar – Desirable)
• Ability to develop and manage project programmes using Microsoft Project
• Understanding of NEC3 Option C contracts and associated commercial principles. (desirable)
• Eligibility to pass CTC / SC clearances

What’s on Offer

Our people are our greatest asset. We’re committed to recruiting, training, and developing people, who can drive innovation and help shape the future of energy.  We invest in nurturing talent, offer a competitive base salary and a comprehensive benefits package, and support continuous professional development at every level of the organisation.

• Hybrid working 5 hours per week
• Medical Health Cover
• Life Assurance
• 25 days of annual leave, plus 1 additional day for your birthday
• Pension Scheme
• Car Allowance
• Family Friendly policies (Enhanced maternity & paternity)
• My Perks (after probation) interest free tech loans
• Real career progression opportunities.
• Discretionary annual salary reviews

What you’ll be doing

• Proven experience in preparing mechanical estimates and tender submissions for industrial or commercial building services projects.
• Ability to interpret mechanical drawings, specifications, and client requirements to develop accurate scopes and cost plans.
• Skilled in carrying out quantity take-offs for mechanical systems, including HVAC, pipework, plant, and associated equipment.
• Strong commercial awareness and ability to identify and mitigate risk within estimates.
• Proficient in the use of estimating software and Microsoft Office (Excel, Word).
• Experience sourcing and analysing supplier and subcontractor quotations against technical specifications.
• Confident in attending client meetings and engaging with stakeholders to clarify scope and technical details.
• Capable of preparing tender documentation, including cost breakdowns, summaries, and supporting schedules.
• Familiarity with project planning and the development of outline programmes.
• Willingness to travel for site visits across the UK as required.

Diversity and Inclusion

At Dalkia, we believe that a diverse and inclusive workforce is essential to driving innovation and achieving a sustainable energy future. We are committed to creating a workplace where everyone feels valued, respected, and empowered to thrive regardless of background, identity, or lived experience. We welcome applications from all individuals and are proud to be an equal opportunity employer. Together, we’re building a culture that reflects the communities we serve and supports the transition to a net-zero world.