Mechanical Estimator

Dalkia Energy Services Ltd; Bridgwater; On-site; GBP 45,000 - 65,000; Full time

Job summary

Dalkia Energy Services Ltd in the UK is seeking a Mechanically Biased Estimator to deliver accurate cost estimates for complex mechanical building services projects. You will analyse drawings, specifications and data to produce competitive tender submissions and support successful bid outcomes.

You will liaise with suppliers, subcontractors and internal teams to capture cost risks, value opportunities and ensure compliant tender documentation, with a focus on quality and timely delivery for the

Qualifications

• Proven experience as a Mechanical Estimator in building services or construction.
• Strong understanding of MEP systems and mechanical installations.
• Ability to read and interpret technical drawings and specifications.
• Experience using estimating software and MCA systems is advantageous.
• Knowledge of procurement, tender analysis, and contract documentation.

Responsibilities

• Prepare competitive cost estimates from drawings, specs and schedules.
• Coordinate with bid team and suppliers to obtain quotations.
• Perform detailed quantity take-offs for HVAC, piping, and related systems.
• Enter costs into the estimating system and validate data.
• Support governance reviews and tender submissions.
• Stay updated on industry regulations and sustainable building solutions.

Skills

Estimating

Tender preparation

Reading drawings

Costing

Communication

Education

Degree in Mechanical Engineering

Tools

MCA systems

Microsoft Excel

Job description

About Dalkia UK

At Dalkia, we're driven by a shared purpose: tackling climate change and building a better, more sustainable future. We bring together talented people who share knowledge, challenge each other and grow together.

Backed by EDF, Britain's biggest generator of low carbon electricity, we're a people-first culture. With 5,000+ employees and £600m+ turnover, we combine the strength of a major group with a great culture, innovative mindset and inclusive values making Dalkia a great place to work and grow your career.

Summary of Role:

As a Mechanically Biased Estimator, you will be responsible for preparing competitive and accurate cost estimates for mechanical building services projects. This includes analysing drawings, specifications, and other documentation to prepare comprehensive tender submissions. You will liaise with suppliers, subcontractors, and internal teams to ensure pricing accuracy, identify cost risks and opportunities, and contribute to the successful delivery of quality tender documentation. Your expertise will support the company's goals in securing new business and maintaining high standards of compliance and professionalism throughout the estimating process.

Key responsibilities:

1. Tender Preparation

• Review all tender documentation (drawings, specifications, schedules), identifying any missing or additional requirements.
• Thoroughly study all documents to ensure full coverage of the estimate.
• Print and organise necessary documents.
• Attend internal and external meetings as needed; conduct site visits to assess project scope and constraints.
• Maintain accurate filing and records of all tenders.

2. Enquiries

• Coordinate with the bid team to create an enquiry register for subcontractors, suppliers, and specialist mechanical vendors.
• Prepare and distribute enquiry documents, ensuring a minimum of three quotations are received per package where possible.
• Track responses, analyse compliance with project requirements, and maintain detailed records on the enquiry register.
• Evaluate and score subcontractor and supplier quotations following tender submission.

3. Take-Off, Estimation, Risk & Opportunity

• Perform detailed and accurate quantity take-offs from mechanical drawings, schedules, and specifications.
• Measure and price key mechanical services including HVAC, public health, pipework, ventilation, air conditioning, heating, cooling, and associated plant.
• Enter material, labour, plant, equipment, and subcontractor costs into the estimating system.
• Validate all data including material pricing, labour productivity rates, discounts, and cost multipliers.
• Complete cost risk registers and Value Engineering (VE) schedules.
• Ensure correct representation of mechanical and electrical interfaces including BMS controls, power supplies to mechanical plant, and commissioning requirements.
• Identify opportunities for alternative solutions, cost savings, and programme efficiencies.

4. Tender Review

• Participate in review meetings with the Estimating Manager and Directors.
• Lead discussions relating to project cost risks, exclusions, assumptions, and opportunities.
• Update estimates based on decisions from review meetings.
• Prepare authorisation sheets and supporting documentation for governance and settlement reviews.

5. Tender Submission

• Finalise and cross-check tender summaries and authorisation sheets.
• Draft clarifications, assumptions, and exclusion schedules for inclusion within tender submissions.
• Support bid writers with technical and commercial inputs as required.
• Attend post-tender interviews and meetings.
• Maintain tender tracker records and lessons learned documentation.
• Archive unsuccessful or inactive tenders and ensure all documentation is retained in accordance with company procedures and potential contract requirements.

6. Continuous Development

• Stay current with industry regulations, standards, technologies, and best practices in mechanical building services.
• Maintain awareness of emerging technologies, sustainable building solutions, low-carbon heating systems, and energy-efficient HVAC systems.

Desirable Qualifications & Experience

• Proven experience as a Mechanical Estimator within the building services or construction sector.
• Strong understanding of MEP systems, with a particular focus on mechanical installations and services.
• Ability to read and interpret technical drawings, specifications, and schematics.
• Competency with estimating software and Microsoft Excel; experience using MCA systems is advantageous.
• Familiarity with procurement processes, tender analysis, and contract documentation.
• Excellent organisational skills with a high level of accuracy and attention to detail.
• Strong communication and negotiation skills for engaging with suppliers, subcontractors, consultants, and internal stakeholders.
• Degree, HNC/HND, or equivalent qualification in Mechanical Engineering, Building Services Engineering, or a related discipline preferred.

Building Services Experience

Mechanical Services

• HVAC Systems
• Heating and Cooling Systems
• Chilled Water Systems
• Public Health Services
• Pipework Installations
• Domestic Water Services
• Above and Below Ground Drainage
• Renewable Energy Technologies
• Mechanical Plant and Equipment

Working Pattern of Attendance and Location(s)

• Hinkley Point C Construction Site, Wick Moore Drove, Nr Bridgwater, Somerset, TA5 1UD
• 9 Day fortnight

Ideal Candidate Profile

The ideal candidate will have a strong technical understanding of mechanical building services systems, excellent commercial awareness, and the ability to produce accurate and competitive estimates under tight deadlines. They will be proactive in identifying risks and opportunities, capable of building strong supplier relationships, and committed to delivering high‑quality tender submissions that support the company's growth strategy.

Our Values

People First – It starts with health, safety and wellbeing

Better Together – A collaborative team

Trusted Partners – Dedicated to our clients' success

Taking Responsibility – Making a positive difference

Equity, Diversity & Inclusion

We're committed to an inclusive and fair recruitment process. If you need any adjustments please let us know, in confidence, our team is here to support you.