
Custom fire-resistant windows
Fire-resistant windows for every building
We manufacture and install wooden fire-resistant windows to measure, from flats and schools to historical buildings. As the only company in the Czech Republic, we can also make non-combustible DP1 windows.
As the only company in the Czech Republic, we make non-opening DP1 windowsthat look like windows made of wood.
Alongside our unique DP1 windows we also make classic wooden fire-resistant windows in the DP3 class — fixed glazing as well as opening. Choose the type you need and we will prepare a tailored solution — we can also combine the windows with fire doors into complete fire walls.
Take your pick
We make and install these types of windows

Wooden fire-resistant windows
We make them fire-resistant as well as fire- and smoke-resistant — fixed glazing, single or double sash, side-hung or top-hung (for cleaning). Types EW15–EW60, EI15–EI30 with DP3 construction parts.
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Non-combustible windows with a grenamat construction
As the only company in the Czech Republic, we make a wooden alternative to aluminium or steel DP1 windows. We produce wooden DP1 windows with a grenamat construction in any shape, but only as non-opening.
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Manufacture and installation
Complete manufacture and installation of windows
We make windows at various levels of fire safety — for wooden windows EW15 – EW60, EI15 – EI60 (DP3), and for windows with a grenamat construction DP1. Most often they go into schools, flats, office and historical buildings. We make them fixed-glazed, single or double sash, side-hung or top-hung for cleaning.
Based on your project documentation we propose which windows to use and adapt their appearance to the character of the building and the other elements. We can make almost any atypical dimensions. As the only company in the Czech Republic, we can also make non-opening DP1 windows that you can't tell apart from wooden ones.
Following the list specified by the designer, we manufacture, deliver and install the windows — always with the required fire safety.
Bespoke design
We adapt to the character of the building
We make fire-resistant windows from materials that resist fire for a long time — most often solid wood or MDF with veneer, and we also use plywood. Thanks to their properties (DP1), windows with a grenamat construction are the most popular. They are complemented by fire-resistant strips and sealants that, in a fire, expand many times over and prevent it from passing through.
We tailor the surface finish to your aesthetic requirements — including for windows with a grenamat construction, which we make so that they look like wood.
We can combine windows with fire doors into complete fire walls — so that everything suits the building, the designer, the architect, the investor and the fire brigade. Just get in touch with your project.


Digital design
2D/3D models make it easier to picture
Before we start production, we prepare a 2D or 3D model of the windows — so you have a clear idea of how they will look, how wide they will be, how much space they will take up and whether they meet your expectations.
From the model you will also find out what space the installation requires, and you can adjust the sequence of work — avoiding demolishing something already finished. Thanks to the model, we can also devise truly atypical windows that you normally won't see anywhere.
We can help even where you would otherwise have to reach for metal
Get in touch today — we will discuss the options free of charge and prepare a tailored quote.
Certification
We guarantee fire-safety compliance
All our products meet the required fire-safety classes and are certified for use in buildings. Our products are verified by the Technical and Test Institute for Construction Prague (TZÚS) and by PAVUS, a.s.
- Fire-rated doors meet EW15 – EW30, EI15 – EI30 with DP3 structural components
- Fire-rated windows meet EW15 – EW60, EI15 – EI60 with DP3 DP1 structural components
- Fire-rated walls meet EW15 – EI60 and can be freely combined from fire-rated doors and windows of various materials


Why POZUZ
What you get from us
Our windows are designed with both aesthetics and strict fire-resistance requirements in mind — they suit new builds, renovations and heritage buildings alike.
From design to installation
We handle everything from the digital 2D/3D design through to on-site installation.
We meet deadlines
We always keep to the agreed deadlines and stay in touch with you throughout.
Certified products
We make products with certified fire resistance, verified by TZÚS and PAVUS.
5,000+ projects
We have more than 5,000 completed projects behind us — and new ones keep coming.
Projects
We provide fire protection for these clients
Curious how our fire-rated doors, windows and walls look in real interiors? Visit our references and see what we can do in photos from our projects.
Our website ends here, but our partnership can begin
Need custom fire-resistant windows? Get in touch — we will prepare a no-obligation quote and discuss the options for materials, design and production. We can also advise on wooden DP1 windows.