Energy-saving, sustainable and fire-safe insulation

When it comes to mechanical HVAC/R and piping systems, we offer the construction industry energy-saving, sustainable and fire-safe insulation solutions with very high mechanical strength.

Get advice!
Construction PE foam insulation
Insulation sheet tubes

Construction insulation

Investing in sustainable savings

In an average household, heating, hot water and cooling account for half of all energy consumption. A similar pattern exists in offices, hotels, factories, terminals, educational buildings, supermarkets and many other utility buildings. The quality of the insulation used must therefore meet the highest standards.

Insulation for Stadium soccer
Insulation in food factory

Important for insulation in construction:

  • Energy efficiency
  • Condensation problems
  • Damage to insulation
  • Durability
  • Fire safety

Investing in efficient Thermaflex solutions pays off, particularly in the long run. It delivers sustainable energy savings while reducing living expenses and management costs.

Cost-effective insulation products and systems

We offer engineers, contractors, installers and building owners state-of-the-art flexible pre-insulated piping systems and insulation products. Our insulation solutions offer:

  • Cost-effective long-term thermal insulation results.
  • Very high mechanical strength for efficient installation and a long service life.
  • Excellent fire resistance and minimal smoke generation.
  • Resistance to extreme temperature variations.
  • Fully recyclable foams (Cradle to Cradle for ThermaSmart Pro), highly suitable for LEED and BREEAM building projects.
  • Extensive support for designers and specifiers during installation (training, tools, manuals).

Advice and support

Engineering support Thermaflex insulation

Engineering and support

Our insulation engineers help you select and calculate the right solution for your thermal insulation challenge.

Engineering and support
Co-development Thermaflex insulation flexalen


As an innovative supplier, we think along with you. More and more of our customers are discovering our co-development capabilities. Our engineers and solution developers can work closely with you to develop new solutions that meet your wishes and requirements.

PE insulation product lines

Insulation product lines

For heating, cooling or air conditioning systems, and in almost every environment: we have the perfect polyethylene insulation product.

Insulation product lines
Training installation Thermaflex

Installation and training

Trained installers deliver better results, within the scheduled installation time and with less waste and damage. We offer a complete training portfolio for installers of PE foam.

Installation and training


Thermaflex is affiliated with the following national and international organisations:

Abok Russian Engineers for heating, ventilation, air conditioning, heat supply and construction thermophysics
VIB-Ondernemers in het thermisch isolatiebedrijf
NVKL Organisation for cooling and refrigeration technique
FSK Fachverband Schaumkunststoffe & Polyurethane
VDKF Verband Deutscher Kaelte Klima Fachbetriebe
DNGB Deutsche Gesellschaft für Nachhaltiges Bauen
OOI opleidings- en ontwikkelingsfonds voor de isolatiebranche

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
Leendert van Veen
Leendert van Veen

Marketing & Sales Manager North-West Europe

Ask our expert

  • This field is for validation purposes and should be left unchanged.


November 22, 2021 in News

District heating network for Azores archipelago

In the Azores archipelago (Angra do Heroísmo, Terceira), João Pualino Lda and his team are today commissioning a district heating network fed by the local waste-to-energy plant and start benefiting…
Read More
November 19, 2021 in Vacancies

IT application manager – Żarów – Poland

As our application manager, you make sure our IT applications run smoothly and support our business processes in the best way possible. You will be part of the central IT…
Read More