3DTD delivered an excellent feasibility study for a major infrastructure project with Vattenfall, developing DHN main spine routing options that effectively addressed key project constraints. Their work was high quality, combining clear analysis with practical proposals and well-presented supporting material. They identified key risks early and helped define the areas that required focus at this stage, bringing valuable insight and experience throughout. The team was professional, easy to work with, and understood our objectives from the outset. We would not hesitate to work with them again.
Dr Samuel Hinmers CEngProcess Engineer - Major Projects 
The involvement of 3D Technical Design from the design development stage to the construction of the Southwark 2 network has been crucial to its success and constructability.
Their technical knowledge of heat network design and construction has significantly contributed to the project's success. From the design development stage of highlighting problematic areas for further investigations through the method of trial holes and surveys, all the way through to the construction phase of the network. The challenges faced with unchartered services and other issues that have arisen across the project have collaboratively been dealt with and overcome.
The team/designers that Veolia have worked with day to day on the coalface have been professional and helpful and have been a pleasure to work with.
Jonathan P BadgerProject Manager, Veolia Heat Networks / Eneteq Services Limited 
This work ticks all the boxes of service, turnaround, response time, flexibility, competence, quality. Everything I want from an external company. You guys truly are the best in class at what you do!
Michael RidgeDesign Manager Community Energy B2M
David, Kris and the team have done an excellent job on the Ashley Road network. They have been really proactive in delivering the designs for what has been a very congested and complex stretch of the network, as well as being very responsive and helpful with the client. Much recommended for when we get more detailed buried network design works, and as a second pair of eyes on more complex feasibility/DPD designs.
Asad KwajaPrincipal Energy Engineer, Sustainable Development Group 
3D Technical Design have played a central role in supporting the development of a complex multi-party project through to its construction phase.
They have assisted us in identifying, understanding and managing complex project risks, whilst being flexible and focused, highlighting necessary options and solutions which have been vital to navigating our stakeholders through the various Heat Network route coordination options and challenges which exist within city-centre environments.
Paul Barker Energy Infrastructure Manager 
I am very happy with the work provided and will certainly consider you for any similar requirements in the future
Neil Morrison Energy and Low Carbon Project Manager 
3D Technical Design’s approach has been professional, flexible, strategic and proactive in assisting Stoke-on-Trent City Council to accelerate and control the delivery of the first phase of our District Heat Network.
Sébastien DanneelsDHN Technical Lead Manager 