KWS Windows

KWS Conservatories

KWS Windows and Doors

Gallery + Feedback


Glazing Options








Kömmerling - Quality & Energy

Free Door With Window Orders

(5 or more)

15 Year Guarantee With Kömmerling

Kömmerling Connoisseur Gold ensures high quality

with rigorously tested products, offering homeowners the highest standards of design and energy efficiency.

Kömmerling is highly tested for highest quality

Kömmerling systems have been tested and proven to perform in all kinds of extreme conditions. One test took place at 2,300 meters above sea level, with windows exposed for 15 years to strong UV-radiation, freezing temperatures and heavy storms.

From windows to seals, everything proved to be in the same condition at the end of the test period

Energy Conservation

Complies with new Government Building Regulations.

The British Governments legally binding commitment to reduce green house gases is fully supported by Kömmerling. The company has undertaken an extensive testing program to ensure all its products not only meet but exceed the stringent requirements of Part L of the Building Regulations.

Under test, Kömmerling window, achieved a u-value well below the Government's target of 2.0W/m2k

Obtaining the EU Environmental Label

The EU Environmental Commission is currently undergoing a comprehensive evaluation of various aspects of PVC-U and its additives in all of its applications- including vehicle manufacturing, for example. The goal is to detect problems before they arise and to work with industry to prevent the from occurring

Quality Test Report

Kömmerling Intro


Quality and Energy