Introduction
At Trelayne Technical Services, we combine decades of hands-on experience with cutting-edge material expertise to deliver safer, more efficient underground construction.
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Led by industry veteran Nick Chittenden, we provide independent consulting, practical site support and strategic optimisation for sprayed concrete, ground support systems, and grouting operations.
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Expert Solutions for Complex Underground Challenges
We help make difficult underground conditions easier to manage. By combining specialist technical knowledge with hands-on, site-based experience, we provide clear, practical solutions that work in the real world — reducing risk, improving performance and supporting successful project delivery.
What We Focus On
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Sprayed Concrete Materials, Design & Application
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Pre Excavation Grouting
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Water Ingress Control Injection
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Anchoring Grouts & Ground Support Systems
Why Clients Choose Us
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Specialist underground materials expertise
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Practical site solutions, not theoretical advice
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Measurable improvements in production, safety, and cost
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Support from audit stage through to implementation and optimisation
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UK based, delivering support globally
Who we Support
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Tunnelling & Infrastructure
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Mining & Resource Projects
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Civil Engineering & Major Contractors
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Renewable Energy (Hydro, Geothermal )
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Underground Construction Material Suppliers
About the Founder
Nick Chittenden
Nick Chittenden brings nearly 40 years of international experience in underground construction, sprayed concrete and ground support. He is widely recognised in the tunnelling community for driving improved material performance and operator competence.​
