Offer /


sliding door with low threshold PVC

HST 85mm Terrace Door is a window  solution that will make your dream home  filled with light, free of architectural  barriers, close to the surrounding nature,  and at the same time comfortable, warm and safe.

These large-format windows allow you to eliminate all restrictions, save space freely  shape the space of the house. They are ideal for those who want the  comfortable combination of an interior terrace and a panoramic view..



single and multi-family housing, balcony, terrace

Uw coefficient (for the whole window)

0,75 W/m2K*

Installation depth (frame)

197 mm

Installation depth (sash)

85 mm

Max. door dimension

width 3000 mm x height 2700 mm 

Solid / closed steel


Possibility to use motorized fitting


Available opening patterns

A, C, D, F

Possibility of asymmetrical division


Possibility of using acoustic glass


*Uw for an example HST door (SCHEME A) PREMIUM with a warm threshold of 3500mm x 2300 glazed with double-glazed glass with a heat transfer coefficient for the central part of the glass Ug= 0.5 W/m2K and the value of the linear thermal bridge heat transfer coefficient at the contact of the glass with the frame W/m2K


Color configurator

The windows add character to the house both inside and outside. In addition to all functional considerations, the location, form and color of these building elements are a significant means of shaping the appearance of the building.

Check the window color configurator to see which will be perfect for your home.


accessories for windows and doors


Handles are an integral part of the windows, which affects the aesthetics and character. See a wide range of handles in modern and traditional design and select their functionality to suit your needs.


Glazing occupies the largest surface area in windows, so their proper choice is crucial to maintaining the thermal and acoustic comfort of a building. See what types of glass and glazing packages we offer.

mosquito net

You’ll also find mosquito nets that protect against insects, mosquitoes and midges, while providing free ventilation and a view of your surroundings. Learn about their types and see which ones will work best for your windows.


Fittings that allow the sashes to be opened, tilted or slid are responsible for the functionality and security of windows and doors. You can be sure that all of them come from proven and reputable suppliers and will work smoothly for many years.


Proper airflow is a healthy climate in your home. With ventilators installed in the windows, you don’t have to worry about ventilation. See how ventilators will make your home always have fresh air.

window sills

Both exterior and interior-mounted window sills can be made in many different material and color options. Find out which ones will fit your windows best.

Comprehensive service

Installation of windows and doors

Proper installation is a key issue for windows to perform their function well, that is, to be a tight and stable partition without thermal bridges through which precious energy escapes. Our expert teams offer installation based on various technologies and standards. Check which ones will meet your expectations.

See how we manufacture your windows

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