The UK’s leading mechanical services contracting business

With nearly thirty years of experience, adi Mechanical has grown and evolved to provide an extensive range of first-class mechanical services, all of which are self-delivered by our highly skilled team of trade personnel and expert engineers. 

Our three pillars approach to the market ensures that we offer a full and extensive range of mechanical services for our clients. The way in which our business is structured allows our clients to take a flexible approach and allows them to choose which service, or services, suit their requirements or application best. Our solutions enable clients to utilise our design and feasibility services, from fabrication and installation, through to total life care maintenance packages. 

Our philosophy of driving total customer satisfaction ensures that we can provide a wide range of support. From minor reactive works to large scale full turn-key projects, all services are delivered with the same world-class project management processes.

Relationships within adi

adi Group has a continued growth and development path sustained throughout its 28 year history. Our model is to become the long term engineering partner of choice for our strategic clients.

Our philosophy is to invest in our clients, their sites and our relationships to ensure that we are not only aligned to their core values and objectives but that we become the partner of choice for their own growth and progression

Our manufacturing footprint

adi has five mechanical workshops strategically placed across the UK. Our workshop facilities allow us to provide mechanical design and fabrication of structures in accordance with BS EN1090-1. We can design and fabricate pressure vessels and tanks in-house. With segregated positive pressure stainless facilities, we can support food grade hygienic fabrications.

Our current resource pool

adi Mechanical employs in excess of 140 people across the UK. This is heavily weighted with trades personnel and includes in excess of 45 coded welders and circa 130 coded weld procedures. Our strategy of a collaborative adi facility and client site-based activities ensure that we provide a controlled yet reactive service in support of client requirements.

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Our Services

Our services vary for each division and sector, which is what makes us so unique. We tailor our solutions for each individual client, ensuring they receive exactly what they need. Here are just a few of the services we offer.

Racking Installations

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Thermal Insulation

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Factory Plant Relocations

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Fabrications & Operations

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Design & Technical

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We're here to help, whatever your query may be. However, here are a few FAQs that you may find useful. If you still need further assistance, please get in touch.

Yes. Our workshops are accredited to BS EN1090-1, so are able to design, fabricate and install, as well as being able to load bearing platforms and structures."

Yes. We can fabricate a wide range of holding and pressure vessels up to a volume of 30,000.00 litres.

Yes, we use a software package named WeldEye to create our own WPQR’s and WPS’s, and code our welders to the relevant procedures in order to comply with PSSR and legislative requirements.

Yes. With over 140 weld procedures in the business, we have the competence to work across a variety of services and ingredients pipework.

Yes, we offer a full range of 2D and 3D design capabilities, including a comprehensive suite of tools from the Inventor Package.

Talk to us

Contact us today and we can discuss your project needs.
Request call back

Talk to us

Contact us today and we can discuss your project needs.
Request call back

Explore our divisions


adi Automation


adi Automotive

building and refurbishment

adi Building & Refurbishment

industrial ventilator

adi Climate Systems

electrical installation

adi Electrical

Splash of Water

adi Environmental

facilities engineering

adi Facilities Engineering

security system cctv

adi Fire & Security


adi Food and Beverage

air compressor

adi Healy Compressors


adi Intelligent Buildings

manufacturing facility

adi Ireland

robotic arms lean manufacturing

adi Lean Manufacturing

mechanical engineering

adi Mechanical

pipework engineering

adi Process Pipework

industrial installation

adi Projects

electric vehicle charging

adi Vehicle Charging Solutions


adi VT Lift & Escalator

adi waste systems

adi Waste Systems

water pollution solutions

adi Water Pollution Containment