Senior Mechanical Estimator

Company: Sigma
Apply for the Senior Mechanical Estimator
Location: Castleford
Job Description:

SENIOR MECHANICAL ESTIMATOR – Castleford (Hybrid Working)

Overview

The Mechanical Estimator plays a key role in the Sigma M&E Division, helping win profitable tenders by developing accurate cost estimates, ensuring competitive pricing, and supporting the tender process.

Main Responsibilities

  • Prepare detailed project cost estimates, material take-offs, and cost breakdowns.
  • Review supplier and subcontractor quotations for accuracy and compliance.
  • Support the tender process, including bid preparation, coordination, and handover to project teams.
  • Analyse market rates, benchmark data, and project risks to ensure competitive and accurate pricing.
  • Collaborate with internal teams and external partners to maintain strong commercial relationships.
  • Drive continuous improvement within the estimating function.

Qualifications

  • GCSEs (or equivalent) in English and Maths required.
  • HNC/BTEC in Construction or Mechanical Engineering desirable.
  • Degree or chartership advantageous.

Benefits

  • 25 days holiday plus bank holidays.
  • One day birthday leave within birthday month.
  • Option to buy or sell up to 3 days holiday.
  • Hybrid working flexibility.
  • Participation in Octopus EV salary sacrifice scheme.
  • Participation in Cycle to Work scheme.
  • Employee Assistance Programme.
  • Healthshield cash plan with discounts.
  • Free external financial advice.
  • Enhanced family friendly pay.
  • Free tea, coffee and fruit on all sites.

Corporate Opportunities

  • Group Colleague Board.
  • Quarterly Corporate Events/Charity Involvement.

Sigma is committed to creating a diverse environment and is proud to be an equal opportunities employer.

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Posted: May 5th, 2026