REHAU Water Technologies’ contribution to the design, delivery and innovation for heat networks across the UK has been honoured with Heat Network Supplier of the Year award at the UK District Energy Association (UKDEA) 2026 Awards.
The award was given on 14 July as part of the UKDEA Heat Networks Expo 2026, held at the Leonardo Royal Hotel in Tower Bridge, London. The expo included a session dedicated to innovation in which Alexandra Leedham, Technical Team Leader at REHAU Water Technologies, presented REHAU’s recently launched advanced district heating design software which supports ESCOs and consultants with taking projects from feasibility to installation, through hydraulic modelling, pipe sizing, material selection and TS1-compliant heat network design.
Over two decades in the district heating sector, REHAU has established itself as a trusted partner on various schemes across the UK and worldwide. Innovative solutions such as large‑diameter PP‑R systems, the award‑winning RAUVIPEX pre‑insulated pipe solution, and innovative CLIP‑FLEX shroud technology all contributed to the recent win.
More than a solutions provider, REHAU operates as a technical partner across a district heating project’s entire lifecycle. This includes system selection, network layout, optimisation, heat loss calculations, installation guidance and on‑site assistance.
This is all backed up by a suite of training options. Supporting installers and project teams with structured training on system installation and jointing techniques, REHAU helps installers and engineers improve quality and consistency while reducing the likelihood of defects. Combined with REHAU’s extensive UK stockholding, high levels of customer service, and on-site support, customers have confidence and support at every stage of the project.
A director at a large M&E contractor said, “We’ve worked with REHAU on a number of projects over the years and they’ve always been a reliable partner. Their products are high quality, readily available when we need them, and backed up by a team that’s easy to deal with and quick to help. It’s that combination of good products and good people that keeps us coming back to REHAU.”
Steve Richmond, Sales & Marketing Director – REHAU Water Technologies UK, said, “It’s fantastic to be recognised for the hard work our team put into every district heating project. REHAU’s focus on quality and commitment is reflected in our consistent efforts to improve heat networks, from the latest solutions, design software, training and aftersales support. We believe that this commitment instils confidence across the supply chain, from designers specifying systems to operators responsible for maintaining them.”
For more information, see REHAU.co.uk.



