Job Vacancy: Junior/Trainee Mechanical Estimator
Job Title: Junior/Trainee Mechanical Estimator
Reports To: Estimating Manager
Department: Estimating
Location: Cardiff
Contract: Full Time & Permanent
Hours of work: Monday – Friday 8:00am to 4:30pm
Salary: To Be Confirmed
THE COMPANY
CMB Engineering is one of the UK's largest independent Building Services Contractors in England and Wales. At CMB Engineering, personality and drive are key characteristics for a high performing team member. The business was formed in 1992 and since CMB began it has established itself as a ‘no grief’ partner to national blue chip construction firms.
THE JOB
As our Business continues to grow, we are looking for a Junior/Trainee Mechanical Estimator to join an established Estimating Team.
This is a great opportunity for someone early in their estimating career or someone from a mechanical building services background (plumbing, HVAC, mechanical project support etc.) who is looking to move into estimating.
You will be working closely with senior estimators and project teams, supporting the preparation of tenders across a range of mechanical building services projects.
If this seems like something that would interest you, please get in touch.
DUTIES & RESPONSIBILITIES
Assisting with the preparation of mechanical estimates and tenders.
Reviewing drawings, specifications and tender documentation.
Take-offs and quantifying mechanical works.
Obtaining quotations from suppliers and subcontractors.
Supporting cost planning and bid submissions.
Working with project and design teams to understand project scope.
Collaborate with project managers, engineers, and other team members to gather necessary information for estimating purposes.
Project site visits to assess any restrictions while tendering.
Maintain a comprehensive database of historical project data for future reference and cost comparison.
WHAT WE ARE LOOKING FOR
Motivated individual that can work as part of a team and to their own initiative.
Ability to be proactive with tasks and duties
Excellent communication skills and a proactive approach.
Committed to following procedures and ensuring tasks are fully completed.
Strong analytical skills, accuracy and attention to detail
Ability to use own initiative within the parameters of the role.
Friendly positive attitude.
Full UK Driving Licence.
DESIRABLE / BENEFICIAL
Proven experience in a construction or mechanical contracting environment.
Strong knowledge of mechanical systems, materials and installation practices.
Experience in setting up and using electronic document management systems.
Strong analytical skills with the ability to review and interpret technical drawings and specifications.
Good knowledge of Microsoft Software (Word, Excel, Outlook, SharePoint)
Detail-oriented with a commitment to accuracy and quality.
Ability to work under pressure and manage multiple projects simultaneously.
Ability to multitask
BENEFITS (subject to a successful completion of probationary period)
Competitive salary
Private Healthcare
Opportunities for professional development and career growth
Company Pension Scheme
If you are interested in applying for this role, please send a copy of your CV to Sean Jones via email to careers@cmbeng.co.uk
Closing Date for CV’s: Friday 27th November 2026 at 5:00pm
Date for Interviews: To Be Confirmed
Please Note: Due to the overwhelming number of applications we receive, we may only contact candidates who have been shortlisted for an interview.
We reserve the right to close this vacancy early if the demand in applications become high.
We do not require assistance from recruitment agencies.
CMB Engineering is an Equal Opportunities Employer.
