Mechanical Estimator
Due to the continued growth and expansion of the company TES have an opportunity for an Mechanical Estimator to join our team.
Key Responsibilities:
· Manage the full lifecycle of mechanical estimation, from initial client enquiry through to project handover
· Review client specifications, drawings, and tender documentation to prepare accurate and competitive cost estimates
· Produce detailed technical and commercial quotations aligned with client requirements
· Liaise with design engineers, suppliers, and subcontractors to obtain accurate pricing and technical input
· Work closely with contracts managers and project teams to ensure estimates are realistic and achievable
· Identify risks, opportunities, and value engineering options within tenders
· Ensure all estimates comply with company procedures, ISO Quality & Environmental standards, and Health & Safety regulations
· Support continuous improvement of estimating processes and cost databases
Essential Criteria:
· Ideally 3+ years’ relevant experience in a Mechanical Estimator or Process Engineering role; however, we also welcome applications from recent graduates with a strong interest in this field
· Proven experience with pumping and pipework systems is essential
· Experience in a similar industry is desirable
· Innovative approach to work
· Proficient in Microsoft Excel
Desired Criteria:
· Experience working with NI Water, Uisce Éireann or similar water utility companies.
· Knowledge of WIMES standards.
What we offer:
Competitive salary to reflect the role and duties
Life Assurance Plan - x3 times Gross Salary.
Workplace Pension - 3% per Employer.
Private Medical – Option to add Family.
30 days Paid Holidays per year.
Rewarding Workplace culture
About the role
The Mechanical Estimator role at TES, based in Cookstown, Co. Tyrone, is a key position within the company’s expanding Water division. Reporting to the Group Bid Manager, the role focuses on preparing accurate and competitive cost estimates, supporting project delivery from initial enquiry through to handover, and working closely with internal teams and external partners to ensure successful project outcomes.
TES Group
TES are water and power technology engineering experts specialising in critical infrastructure. We provide specialist services to the water / power industries worldwide. We are an ambitious, innovative organisation within the sectors we operate; young, progressive, responsive, client-needs-driven and on the cutting-edge of technology. These core characteristics have resulted in highly efficient internal manufacturing capabilities and meaningful client partnerships, enabling us to provide custom designed, flexible solutions.

TES provide clients with an all encompassing service from initial project conception right through to design, construction, installation and maintenance. We support our clients throughout the lifecylce of the project. TES use in-house resources in the delivery of your projects; from design through to installation and operation. This provides clients and partners with the reassurance of our control over delivery throughout a projects lifecycle.

At TES Group, our company culture is built on collaboration, innovation, and integrity. We foster an inclusive environment where every team member’s ideas are valued, encouraging creativity and continuous improvement. Our people are passionate about delivering sustainable engineering solutions that make a positive impact on communities and the environment. We prioritize professional growth, safety, and well-being, empowering our employees to thrive both personally and professionally. By promoting open communication, mutual respect, and shared success, we’ve cultivated a workplace where dedication and teamwork drive exceptional results and lasting client relationships.
Our benefits
Health insurance
Retirement plan and/or pension
Life insurance
Progression opportunities
Mechanical Estimator
TES are water and power technology engineering experts specialising in critical infrastructure. We provide specialist services to the water / power industries worldwide. We are an ambitious, innovative organisation within the sectors we operate; young, progressive, responsive, client-needs-driven and on the cutting-edge of technology. These core characteristics have resulted in highly efficient internal manufacturing capabilities and meaningful client partnerships, enabling us to provide custom designed, flexible solutions.


