Tilbury Douglas Tilbury Douglas
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Engineering

We are recognised as one of the UK’s leading mechanical, electrical and plumbing engineering contractors, enabling complex estates to operate safely, efficiently and sustainably.

With more than 78 years of experience, alongside long standing membership of the Building Engineering Services Association and the Electrical Contractors’ Association, our heritage reflects enduring technical authority and trusted industry relationships.

This expertise underpins our delivery of plant replacement, infrastructure renewal and engineering modernisation across diverse sectors.

We operate confidently within live environments where continuity of service, stakeholder engagement and uncompromising safety standards are essential.

Working nationwide, we provide a complete service from feasibility and design through installation and commissioning to long term aftercare. Depending on project requirements, we act as principal contractor or specialist supply chain partner.

Through close collaboration with our regional building, fit-out and infrastructure teams, we deliver fully integrated engineering and construction solutions. This integrated delivery model enhances programme certainty, improves efficiency and delivers better value for our customers.

Project delivery

Recent delivery highlights focus on our exceptional engineering execution in complex, live environments. We successfully completed the final 10-year phase of a long term framework at the Old Bailey Criminal Courts with the City of London, delivering critical works within a fully operational Grade II* listed court building whilst maintaining business continuity while safeguarding the integrity of the historical asset.

At Catterick Integrated Care Centre, we drove programme certainty and quality through the adoption of modern methods of construction. A fully modularised plantroom and extensive multi-service corridor and riser modules enabled precision off-site fabrication, streamlined on-site installation, and significantly reduced disruption.

Across our wider portfolio, we continue to deliver high performance engineering solutions for the NHS, Department of Health, Ministry of Justice and Department for Education, in addition to supporting customers across commercial, industrial manufacturing, life sciences, higher education and other central and regional government sectors with safe, efficient, and technical delivery.

Sustainability, compliance and assurance

Our focus remains on strengthening resilience, reducing carbon and optimising whole life performance. We support decarbonisation strategies through direct appointments and established framework routes, backed by regional teams and a strong supply chain network across the UK.

Our governance and delivery are reinforced by recognised management system certifications, including ISO 9001, ISO 14001, ISO 45001, ISO/IEC 27001 and ISO 19650. External recognition, including the RoSPA Patron’s Award 2025, reflects our continued commitment to safe, high quality delivery as a leading UK engineering business.

Building in London Zoom in Selfridges, London
HVAC view on roof. Zoom in Stafford Hospital
Employee working on site. Zoom in Walsall Manor Hospital
Plant room view. Zoom in Birmingham Children’s Hospital
Employee holding cables on site. Zoom in Walsall Manor Hospital
Hospital view. Zoom in Liverpool Women’s Hospital
Crane lifting Zoom in Leighton Hospital, Crewe
Two employees looking at plans on wall. Zoom in Walsall Manor Hospital

Want to find out more?

To find out more about Tilbury Douglas, you can connect with us via our social media channels or get in touch via our contact page.

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Tilbury Douglas
30 Eastcheap
London
EC3M 1HD

0121 782 2727

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Registered in England and Wales: 00303359 (Construction) and 03044398 (Engineering). All rights reserved.

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