Junior Mechanical Estimator

Position: Junior Mechanical Estimator (Permanent)
Location: New Forest

Junior Mechanical Estimator – Southampton Area – £35,000 – £45,000 + Training + Career Progression

This is a fantastic opportunity for an ambitious Junior Mechanical Estimator to join a respected M&E Building Services contractor delivering projects from £100k to £5m.

The business delivers mechanical and electrical building services projects across commercial, industrial, healthcare, education, leisure, and public and private sector environments. Pre-construction is a key function within the organisation, and they are now looking to invest in the next generation of estimating talent through structured training and long-term development.

The Opportunity

This role is designed to support the Pre-Construction Director and estimating team, with a clear development pathway into a fully-fledged Mechanical Estimator over time.

The position would suit either:

* A Junior Mechanical Estimator with 1–2 years’ experience

* An Assistant Estimator seeking greater responsibility

* Or a mechanically qualified engineer currently working on the tools who is looking to transition into an office-based estimating role

Full training and mentorship will be provided.

Key Responsibilities

* Assisting in the preparation of mechanical building services tenders

* Supporting take-offs from drawings and specifications

* Pricing HVAC, heating, ventilation, pipework, plantroom, and public health systems

* Liaising with suppliers to obtain quotations

* Supporting cost planning and tender submissions

* Assisting with project handover documentation

As experience develops, you will progressively take on greater responsibility for pricing and managing your own tenders.

About You

* Mechanical Building Services background

* Basic understanding of HVAC, pipework, and mechanical systems

* Strong numeracy and attention to detail

* Ambitious and motivated to build a long-term career in estimating

* Comfortable working in an office-based role

* Experience using estimating software such as Ensign is advantageous but not essential

Remuneration Package – Junior Mechanical Estimator

* £35,000 – £45,000

* Company Pension

* 25 days holiday + Bank Holidays

* Structured Training and Career Development

* Long-Term Progression into Mechanical Estimator

This is an excellent opportunity for someone seeking structured development within a well-run M&E contractor that is committed to nurturing internal talent.

Next Steps

Please apply online today, or contact Rob at David Leslie Ltd for an informal and confidential discussion.

About David Leslie Ltd

David Leslie Ltd is a family-run construction recruitment consultancy with over 20 years’ experience connecting professionals and employers across the UK. Specialising in the Building, Fit-Out, and M&E Building Services sectors, our approach is built on trust, integrity, and long-term partnerships, ensuring both clients and candidates receive a service that is personal, transparent, and expertly delivered