Business Details
37 Years
experience
Emergency
services
Your Trusted Partner for Engineering Solutions
Established in 1989, Relay Engineering has built a reputation as a leading provider of specialist engineering services across the marine, oil, and gas industries. As part of the Denholm Energy Services group, we operate globally with bases in the UK, Middle East, and Caspian region, delivering turnkey project solutions from concept to completion. Our expertise spans electrical, mechanical, and structural engineering, supported by a highly skilled workforce and state-of-the-art technology. With over 300 personnel and CONDO-cleared staff, we offer rapid mobilisation for onshore, offshore, and maritime projects, ensuring compliance with exacting standards.Our workshops in Plymouth, Portsmouth, and Aberdeen provide fabrication, welding, and metrology capabilities, while our international presence enables tailored support for defence and energy sectors. We maintain preferred supplier status with major defence contractors through rigorous training and adherence to industry best practices. Our commitment to innovation and quality has solidified our position as a market leader in complex engineering disciplines.
Services
Electrical Engineering
Mechanical Engineering
Metrology Calibration
Thermal Insulation
NDT Services
Details
- Year established: 1989
Highlights and features
- We have over 30 years of experience in specialist engineering services.
- Our flexible workforce mobilises rapidly to any global location.
- We maintain CONDO-cleared personnel for military-controlled areas.
- Our state-of-the-art workshops support precision fabrication and testing.
- We operate as part of the internationally recognised Denholm Group.
Services
Electrical Engineering
We design and install complex electrical systems for marine, industrial, and commercial applications. Our services include power distribution, control systems, hazardous area installations, and fibre optic networks. With certified engineers and mobile workshops, we deliver turnkey solutions from concept to commissioning, ensuring compliance with international standards and client specifications.
Mechanical Engineering
Our mechanical engineering covers pipework installation, pump and valve repair, and engine maintenance for vessels and industrial sites. We provide lifecycle support from diagnostics to replacement, using crimped or welded systems. Our expertise extends to hydraulic systems and precision machinery, ensuring operational efficiency in challenging environments.
NDT Services
We offer comprehensive non-destructive testing including ultrasonic, magnetic particle, and radiography testing. Our certified engineers perform flaw detection and thickness measurement on critical components. With mobile testing units, we ensure structural integrity and compliance for offshore platforms, vessels, and industrial facilities.
Thermal Insulation
We install thermal and acoustic insulation for pipelines, vessels, and machinery across temperature ranges from -180C to 1,000C. Our solutions include calcium silicate, mineral fibre, and phenolic foam materials. We provide thermal jackets and bulkhead insulation to enhance energy efficiency and personnel safety in industrial plants.
Metrology Calibration
Our metrology labs calibrate electrical, pressure, temperature, and flow equipment to ISO standards. Mobile calibration units service onshore and offshore sites. We offer repair services for faulty instruments, ensuring measurement accuracy and compliance with industry regulations for critical operations.
Questions
What industries does Relay Engineering Engineering serve?
We primarily serve marine, oil and gas sectors, with additional capabilities in defence and industrial engineering projects.
Do you provide emergency engineering services?
Yes, our flexible workforce mobilises rapidly for emergency repairs and maintenance in any location.
What certifications do your engineers hold?
Our welders are certified by Lloyds, and we maintain CONDO clearance for military operations.
Can you handle international projects?
We operate globally with bases in the UK, Middle East, Caspian region, and USA.
What testing services do you offer?
We provide ultrasonic, radiography, and magnetic particle testing through certified NDT engineers.
Do you offer fabrication services?
Yes, our Plymouth workshops provide steel, aluminium, and stainless steel fabrication with CNC profiling.
