Heinen Doors

Heinen Doors: Belgian steel engineering since 1947

Heinen Doors designs and manufactures steel and stainless steel doors and frames, developed and produced in Belgium, at the heart of Europe, since 1947. This industrial base gives Heinen full control of the entire process, from design through to manufacturing. Every door that leaves the factory reflects the same commitment: performance that holds up on site, year after year.

A pioneer in passive fire protection

Heinen's expertise was forged in response to one of Belgium's darkest moments. In 1967, the fire at the « À l'Innovation » (INNO) department store in Brussels claimed 251 lives. This tragedy, among other major disasters, led to a significant tightening of fire safety regulations across Europe and revealed the urgent need for compartmentation solutions able to limit both the spread of fire and heat transfer.

Within this context, Heinen Doors developed a steel fire door incorporating a specific chemical process applied to its structural components. This treatment reduced thermal transfer and limited the rise in steel temperature during prolonged exposure to fire.

In 1973, Heinen Doors successfully tested this fully thermally insulated steel fire door. Laboratory tests demonstrated fire resistance exceeding 60 minutes, covering stability, integrity and thermal insulation. It was one of the first industrial applications of an insulated steel fire door.

Metal+ Inside: the foundation of every Heinen security door

Today, the Metal+ Inside concept remains the foundation of all security doors produced by the Belgian manufacturer, whether fire-resistant, burglar-resistant, explosion-resistant or fully soundproof. Alongside these, Heinen offers XXL doors, hinged and double-acting doors, as well as custom-engineered doors for exceptional applications.

Performance does not come at the expense of design. Heinen steel doors can be clad in wood or other finishes to blend into any architectural setting. Burglar-resistant doors accept cladding with no loss of performance, while fire-rated doors can also be clad, subject to a site assessment from a certification body, a process Heinen fully supports.

A recent example: Edenya at Pairi Daiza, the world's largest tropical greenhouse, where Heinen supplied a complete range of doors, including underwater room doors designed to withstand the pressure of a water column should an aquarium wall fail.

A business model designed to ensure on-site performance

A door only performs as well as it is installed. That is why Heinen Doors does not install its products directly, but relies on a network of qualified partners trained by its own teams, or on installers who meet strict requirements.

Heinen invests significantly in partner training, covering product knowledge, installation best practices and applicable standards. By combining product excellence, technical rigour, strict compliance and close cooperation with installers and specifiers, this model contributes to the successful delivery of every project Heinen supports.

A long-term investment

When safety, security and durability matter, a high-performance door is not a cost, it is an investment. Heinen Doors BIM objects are available on BIMobject, so architects and specifiers can integrate Heinen solutions from the very first design stage.

Website
www.heinen-doors.com/
Address
Rue de la buse 7 Waimes 4950 Belgium

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Pairi Daiza

Edenya, Pairi Daiza (Belgium): Heinen doors in the world’s largest tropical greenhouse

Opened in February 2026 after five years of construction involving more than 100 companies, Edenya holds two Guinness World Records: largest tropical greenhouse and largest indoor zoological ecosystem. Under a 4-hectare glass roof (1,320 tonnes of steel), this €215 million project houses 230 animal species, two aquariums totalling 10,000 m³ of water and 88 immersive accommodations, including 28 underwater rooms.

With permanent tropical humidity, animals, heavy visitor flows and 5,000 m² of technical rooms, every door had to combine performance, durability and seamless integration. At Edenya, the architecture lets technology disappear behind beauty, and the doors had to follow the same rule.

Heinen Doors Belgium supplied XXL doors, standard hinged doors, double-acting swing doors, room doors and access doors for technical rooms.

The most technical of all: the underwater room doors. Should an aquarium wall fail, they must withstand the pressure of a water column and contain the flooding. These custom doors demonstrate Heinen’s ability to meet specifications with no equivalent.

Steel performance, wood aesthetics: the doors were clad in wood to blend into the setting. Burglar-resistant doors accept wood cladding with no loss of performance. Fire-rated doors can also be clad, subject to a site assessment from a certification body, a process Heinen Doors fully supports.

When failure is not an option, a high-performance door is a long-term investment. Strength, safety, durability in humid environments and design freedom: that is what Heinen Doors brings to every project