ALUMAflat – Wood/aluminium front doors

Flush on the inside and out – the door panel and frame form a perfect unit.

Modern architecture would be inconceivable without products designed to be flush on both sides. ALUMAflat is the ideal solution for anyone who places high demands in design, engineering, quality and comfort.

The purist, straight-laced design of ALUMAflat adds a unique and elegant touch to every house entrance. The door panel and frame blend into a unit and merge perfectly with the overall architecture. What’s more, ALUMAflat provides all the advantages of ALUMA house doors, ensuring maximum heat insulation, security and ease of use.

ALUMAflat front doors are also
available in a break-in resistant design.
Resistance class 2 (RC2).

We love the environment around us & and take responsibility

Our timber comes from sustainable and mainly local forests. But we take environmental awareness to an entirely different level. Besides a solar power system for green electricity, we also have several electric vehicles and a charging station for e-bikes and electric cars.

We guarantee the highest safety standards

Ensuring that our windows and doors satisfy rigorous safety standards is our number one priority. To make certain that you always feel safe with windows and doors by KATZBECK.

We offer ideal
energy characteristics

High-tech windows let plenty of light and warmth into the home, and make sure the heating energy remains precisely where it is. The optimised properties of KATZBECK windows are reflected in their excellent photometric and radiant values.

ALUMAflat – Front door models

Door hardware

It’s the matching hardware that brings your front door to life. Katzbeck offers you an extensive hardware programme and is delighted to assist you in your selection.


Exposed fittings

Lock systems