Pre-insulated piping solutions

Insulating pipe networks on site is complex: the space is often limited, the environment dirty and the planning tight. It also requires very experienced installers. All these factors represent a substantial risk. With our flexible, pre-insulated piping, your networks can be designed largely in prefabricated form. This results in a reliable network, very short installation times and limited disruption.

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Pipes for heating cooling networks
Pre insulated pipes on roll

Local and district heating and cooling networks

Heating and cooling networks have an important role to play in the energy transition. For example, they can be used to transport surplus heat from one location to a residential neighbourhood, or to replace individual fossil fuel heating appliances with local, centralised heating systems. An efficient system minimises heat losses, is sustainable and has a favourable cost of ownership. A quick and problem-free installation is key to avoiding disruption to the surrounding area.

Insulated piping systems for heating and cooling networks

Network solutions for every challenge

We offer networking solutions for every challenge. We have worked with leading energy companies to develop the fully recyclable Flexalen® polymer pre-insulated conduit system. And with Flexalen PU we match even better insulation values. With more than 40 years of experience in developing and optimising flexible pre-insulated piping systems, we can also assist you with regulatory compliance issues, training programmes, calculation tools and technical support from the earliest design phase through to installation.

Fully customisable

Our network solutions are ideal for district heating and cooling, drinking water applications and geothermal water supply projects. In renovation or new-build projects, they are fully adaptable to local conditions and future needs. Our prefabricated network elements, including T-pieces and complete network components, reduce errors on site, increase network reliability and greatly increase installation speed. This reduces installation times and costs.

Advice and support

Engineering support Thermaflex insulation

Engineering and support

Our engineers help you establish the system requirements and design your heating or cooling network.

Engineering and support
Flexalen productlines

Flexalen product lines

Our Flexalen product lines cover all aspects of future-proof heating and cooling networks, from pre-insulated polymeric pipes to house connections and installation equipment.

Flexalen product lines
Installation training Flexalen heating cooling networks

Installation and training

Trained installers deliver better results, within the scheduled installation time. We offer a complete training portfolio for installers of Flexalen piping systems.

Installation and training
Frederiek Patoor Thermaflex
Frederiek Patoor

International Sales Manager Piping Solutions

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Why Thermaflex?

We develop and supply high-quality technical solutions for insulation, protection, shock resistance and soundproofing.

Customised solutions
100% recyclable insulation products
Project management and support


June 13, 2022 in Ducting systems, Heating & cooling networks, Insulated piping systems

Thermaflex at SHK Essen

At SHK 2022 (6 to 9 September 2022 at Messe Essen in Germany) Thermaflex will show its solutions for heating networks, heatpumps and HRV systems. Visit Thermaflex in hall 1,…
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May 9, 2022 in Flexalen prefabrications, Geothermal Energy, Heating & cooling networks, Insulated piping systems, Local & district heating network, News

Flexalen PHC: the next step in district heating networks

As the market leader in the pre-insulated polymer pipe industry, we have developed a completely new product that makes building heating networks easier, faster, and cheaper! In the coming years,…
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