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Specialist engineering services

Structural and temporary works engineering — the design intelligence behind complex demolition and retention schemes.

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For over 25 years, our in-house engineering consultancy, Wentworth, has delivered high quality, fully integrated solutions across permanent and temporary works, geotechnical engineering, testing, verification and design. Their depth of expertise spans some of the industry’s most complex and technically demanding projects, consistently achieving exceptional standards and expert performance.  

Having Wentworth embedded within Keltbray gives us a distinct advantage. It enables us to design and deliver truly seamless end to end solutions – aligning engineering strategy from early design through to construction. This integrated approach reduces interfaces, streamlines decision-making, and minimises the number of parties involved in the process, ultimately enhancing efficiency, certainty and project outcomes.  

“Wentworth offered a speedy and reliable temporary works design and checking service to Lovell Nationwide. Their helpful and proactive approach assisted the project teams and ensured safe and effective temporary works on our projects.”

Daryll Hammond

Head of Health, Safety & Sustainability, Lovell Ltd

“Wentworth’s ability to work in close collaboration with our site teams, as well as other designers, contractors and stakeholders helped meeting several complex design challenges. Above all, we greatly appreciate the way Wentworth act as a fully collaborative partner to CVB with great transparency and honesty.”

Alexandre Chaizemartin

Design and Engineering Manager, Thames Tideway

“Wentworth used their extensive construction expertise and innovative design skills to minimise the temporary works, and deliver financial and programme benefits. We would have no hesitation in appointing or recommending Wentworth for future projects.”

Peter Frackiewicz

Project Director, Picadilly Lights

“Wentworth played an integral role in ensuring the structural stability and safety of our project through their expert design and checking. They displayed exceptional professionalism, clear communication, and a commitment to meeting deadlines. Their technical expertise and collaborative approach have made them a trusted partner in our projects.”

Artur Osick

Hinkley Point C

“Wentworth provide a pragmatic approach and solution-focused mindset, with clarity of communication and realistic delivery timeframes.”

Dimitrios Tziogas-Papandreou

Head of Temporary Works, Multiplex

What We Deliver 

  • Design

    Wentworth delivers structural and geotechnical design services across the project lifecycle, from concept development and pre-planning through detailed design and construction supervision. Our approach integrates construction-led methodology into every design delivering solutions that are technically robust, practical to build, and efficient to deliver. Services include:  

    • Structural Engineering  
    • Geotechnical Engineering  
    • Construction Method Engineering  
    • Temporary Works  
    • 3D Modelling and Detailing  

  • Advisory

    Wentworth provides independent advisory services across decommissioning, heavy lift planning, structural integrity assessments, sustainability strategy, expert witness work, and energy planning. Our advisory service combines construction-led expertise with technical engineering to deliver practical construction solutions that solve some of the toughest problems across the project lifecycle. Services include: 

    • Decommissioning Advisory 
    • Heavy Lift and Logistics for Complex Infrastructure  
    • Social Value & Sustainability Advisory  
    • Structural Integrity Audits & Assurance  
    • Expert Witness Services  
    • Energy Strategy Advice  

  • Wentworth Labs 

    Wentworth Labs combines research, physical testing, and industry collaboration to improve construction methods and validate innovative solutions. Much of our work is in collaboration Keltbray and with industry partners, including CIRIA, TWf, IStructE, and Arup. Recent work includes Hiperpile (renewable energy foundations), steel reuse methodologies, innovative floorplate solutions, and low-carbon concrete research. Services include: 

    • HiperPile  
    • Research & Development  

  • Technical Services

    Wentworth provides in-house surveying, material testing, load testing, structural repair, and specialist lifting and jacking operations. Available as a standalone service or integrated with our design expertise, we provide clients with everything needed to assess, enhance, repurpose, and adapt existing structures. Services include: 

    • Structural Testing 
    • Investigation and Testing 
    • Structural Repair & Strengthening  

Wentworth in numbers

Years of industry experience
25
Graduates/apprentices
20%
strong in-house testing and verification team
11
projects delivered to date
Over 2000
Offices across the UK including Central London
6
BCIA award winner
3x
Structural and geotechnical engineering professionals employed
80

Talk to the team

  • Andy Pye

    Wentworth Director

  • Stuart Vaughan

    Wentworth Director

For more information on Wentworth – please visit the Wentworth website. 

For all other enquiries & tenders please email tenders@keltbray.com

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