Plant Supervisor

Heidelberg Materials UK (formerly Hanson UK) is one of the UK’s largest suppliers of construction materials, employing over 4,000 people and operating around 300 manufacturing sites in the UK.
We are committed to building a more sustainable future and recognise that a diverse workforce is vital to our growth and advancement. We aim to promote a culture that values openness, transparency and individual achievement.
At the centre of our actions lies the responsibility for the environment. As the front runner on the path to carbon neutrality and circular economy in the building materials industry, we are working on sustainable building materials and solutions for the future. We enable new opportunities for our customers through digitalisation.
Plant Supervisor - Concrete
Cross Hands, Llanelli £32,000 - £33,000 DOE + BenefitsBuild Something That Matters
Every road, school, hospital and major construction project starts with quality materials. As a Plant Supervisor at Heidelberg Materials, you'll play a vital role in ensuring our customers receive the highest standard of ready-mixed concrete, safely, efficiently and on time.
We're looking for someone who enjoys taking ownership, leading by example, maintaining high standards, and delivering outstanding customer service. If you thrive in a hands-on operational environment and want to be part of a business that helps build the UK's infrastructure, we'd love to hear from you.
What's the Role?
Based at our Cross Hands Concrete Plant, you'll oversee the day-to-day operation of the site, ensuring the safe production and delivery of quality concrete products while maintaining excellent site standards. Working closely with the District Operations Manager, Order Office, drivers, customers and contractors, you'll be responsible for ensuring the plant operates safely, efficiently and in line with company procedures.
This is a varied and rewarding role where no two days are the same.
What You'll Be Doing
Leading the safe and efficient operation of the concrete plant
Producing high-quality concrete that meets customer specifications
Coordinating daily production schedules and customer orders
Maintaining excellent housekeeping standards across the site
Monitoring stock levels and ensuring materials are available for production
Carrying out routine inspections, maintenance checks and defect reporting
Operating batching plant and loading shovel equipment where required
Ensuring compliance with health, safety, environmental and quality standards
Supporting continuous improvement initiatives to maximise plant performance
Building strong relationships with customers whilst delivering excellent service
Creating a positive safety culture for employees, contractors and visitors
What We're Looking For
You'll be someone who takes pride in maintaining high standards and enjoys working in a fast-paced operational environment.
Ideally, you'll have:
Experience within concrete, aggregates, asphalt, manufacturing, production, construction materials or a similar industry
Previous supervisory or plant operations experience
Strong awareness of health, safety and environmental standards
Good organisational and problem-solving skills
The ability to manage competing priorities and work independently
A customer-focused approach with excellent communication skills
GCSEs (or equivalent) in Maths and English (Grade 4/C or above)
Experience operating mobile plant, batching systems or loading shovel equipment would be advantageous, although training can be provided for the right candidate.
Why Heidelberg Materials?
At Heidelberg Materials, we're helping build a more sustainable future through innovation, collaboration and industry-leading products. When you join us, you'll become part of a global business that values its people and invests in their development.
We offer:
Competitive salary of £32,000 - £33,000 DOE
Company pension scheme
Employee benefits and discounts
Ongoing training and development
Career progression opportunities across a national business
A strong commitment to safety, wellbeing and inclusion
At Heidelberg Materials, we don’t just offer jobs—we build careers. As a global leader in construction materials, we’re committed to innovation, sustainability, and, above all, our people.
Rewards & Benefits
We’re proud to be recognised as an Employer of Choice, with accreditations including:
Armed Forces Covenant (Gold) | Disability Confident | 5% Club (Platinum) | Mates in Mind | Clear Assured | STEM Ambassador | MPQC Member
Competitive Package: Salary, bonus incentives, generous pension, and life assurance
Work-Life Balance: 27 days holiday (plus bank holidays), agile/flexible working, holiday purchase, and sabbatical options, Season and travel ticket loans
Family-Friendly Policies: Enhanced support for maternity, paternity, adoption, IVF, neonatal care, and menopause
Inclusive Culture: Paid volunteering day and active employee communities (LGBTQ+, Women in STEM, Armed Forces, and more)
Wellbeing & Development: Employee Assistance Programme, retail discounts, and continuous learning opportunities
Ready to Take the Next Step?
If you're looking for a hands-on leadership role where you can make a real impact every day, apply now and help us continue building a better future.