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About Thermaflex

What we do

We produce thermal insulation solutions, systems and networks for the distribution of water, heat, cooling and air. Our products are based on polyethylene (PE) foam (insulation products) and polybutene (PB) with PE (Flexalen pre-insulated pipes). We have more than 45 years of experience with insulation. Together with our clients, we work to deliver solutions that meet their needs and make us proud!

Insulation PE foam

Who we are

We are a team of more than 250 people, all of whom are passionate about helping our customers achieve their goals. We proudly develop and deliver innovative and sustainable solutions for a wide range of industries and projects.

What makes us different

When it comes to insulation properties, fire safety, human comfort and the lifespan of your systems, you rely on your insulation supplier. To ensure that your systems are free of condensation, that you achieve your energy-saving targets and that residents are protected, the performance of the insulation products used must really match the promised specifications.

That’s where we make a difference:
Where our competitors promise a lot, we delíver a lot!

Our goal is to make a positive contribution to our environment by delivering sustainable insulation solutions that help minimise energy waste and optimise the use of our natural resources.

Hans de HaasCEO Thermaflex International

45 years of experience in insulation!

Thermaflex was founded by Leendert Baars in Waalwijk, the Netherlands in 1976. Since then, we have grown to become the international company we are today, serving customers on all continents!

Our history

We care about sustainability

Thermaflex cares about the environment. Our goal is to contribute to energy savings and a lower CO2 footprint by developing innovative insulation concepts.

We take responsibility

Quality Assurance

The quality management systems of Thermaflex have shaped all our processes aiming to meet the expectations of our customers. The embedded continuous improvement methods enable us to continuously adapt ourselves to market requirements.
While serving our customers, we minimize our impact, support the circular economy by improving processes, reducing rejects and decreasing our recycled waste.
Our quality management systems are certified according to the ISO 9001 standard and integrated in our QHSE management systems. With the planet and its people in our mind, we are continuously monitoring and improving the quality of our products. Always complying with local applicable legislation and regulations, being in control of risks.


November 24, 2023 in Events

Thermaflex at Heatexpo in Dortmund, Germany

The Thermaflex DACH team was at the Heatexpo in Dortmund this week, showcasing Flexalen solutions. Here, solution providers from plant engineering, infrastructure services, consulting, and energy suppliers are shaping the…
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November 17, 2023 in Events

Thermaflex at Warmte Congrestival

Thermaflex joined 30 exhibitors at the recent Warmte Congrestival 2023 in the Netherlands. Sales account managers Davey Bouwels and Andre Rutten showcased our latest Flexalen products and solutions. Thermaflex showed our Flexalen 600,…
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