DOORS -> Steel Seamless Technical Doors

Technical doors combine high performance with refined design. Made from durable steel, they are specialised solutions that can be tailored to any type of building.
Thermal insulation
Our technical doors are constructed from two steel sheets with a dedicated infill selected for each model. This ensures the required performance characteristics while supporting effective thermal insulation. Depending on the configuration, ECO doors can achieve a heat transfer coefficient as low as 1.2 W/m²K.
Sound insulation
The excellent sealing of our doors also provides high levels of sound insulation. Effective protection from noise is essential for the comfort and well-being of building users.
Keyless access
Innovative keyless systems allow smooth, yet fully controlled access using a key fob, wristband or RFID card. Remote lock control via a smartphone app also enables you to open the door from virtually anywhere in the world.
Built to last
Galvanised steel with an additional polyester or powder-coated finish makes WIŚNIOWSKI technical doors highly resistant to changing weather conditions. The ECO variant is designed for durability, offering up to 500,000 opening and closing cycles.
Customisation and design
Available as internal or external doors, single- or double-leaf, with your chosen opening direction, glazing options, toplights or porthole, plus a wide selection of colours and decorative patterns – WIŚNIOWSKI technical doors can be fully customised to meet the expectations of even the most demanding investors.

Inspiration

Door Design

Solid or glazed leaf
With a broad colour palette, these doors can be perfectly matched to the façade, windows, or other finishing elements of the building. Their wide range of applications and special design, allowing for different opening directions, make external seamless steel doors a truly versatile solution.

Steel frame made of formed sections
A corner frame is supplied as standard. For ECO and ECO Basic doors, a wrap-around frame or internal frame is also available as an option.

Single- or double-leaf
Depending on requirements and available space, you can choose a single-leaf door (ECO, ECO Basic, ECO Basic Uni) or a double-leaf door (ECO).

Mortise lever lock with cylinder
As an option, ECO Basic and ECO Basic Uni doors can be equipped with an additional lock. An electromagnetic strike can also be fitted when required.

Black plastic handle
The standard handle is simple and elegant in black. Optional alternatives include a knob-handle, stainless steel handle and knob-handle, or a stainless steel handle and knob-handle on a split cover plate.

Customisation options
Decorative motifs, glazing elements, and portholes allow you to give the door a unique and individual look.

Sidelights and toplights
These elements help bring more natural light into interior spaces. Right and left sidelights, as well as toplights, are available in any configuration.

Wide range of accessories
Door closer, spyhole, ventilation grilles, or kick plate – a variety of optional fittings can be added to further enhance everyday comfort and functionality.

The ECO Collection

For technical doors in offices and utility rooms, effective sound and thermal insulation are essential. In ECO doors, a cellular cardboard core is used as the infill, providing the right level of acoustic and thermal protection for these types of spaces.

In external ECO doors, the leaf is filled with expanded polystyrene. This material ensures basic thermal insulation and also helps to absorb certain levels of noise. For higher performance requirements, external ECO doors are also available with mineral wool infill or PU board infill as an option.

In every variant, the infill is bonded to the steel sheet with a special adhesive, creating a single, uniform structure. This guarantees the stability and durability of the door leaf – a key advantage, especially where doors are exposed to frequent mechanical impacts and intensive use.