Accreditations & Warranty

Our commitment to quality is supported by a comprehensive array of quality and safety standards which guarantee our expertise.


Kitemark - Window Energy Ratings is a third party product certification scheme
which will result in certification of the energy rating of the client's windows..





BS 7412 - the British Standard for quality in the manufacture of PVC-u windows. The standard itself specifies that the sections used are themselves manufactured to the requirements of other British Standards. Each window undergoes 3 "in process" inspections as well as an end of line inspection involving a 20-point check.




BS 7950 - the British Standard for the manufacture of PVC-u windows with enhanced security specifies the security hardware and construction methods to be used and adopted. Samples are taken 4 times a year to ensure compliance with the standard. The windows must successfully resist forced entry and manual intervention tests using various burglary tools for a minimum of 3 minutes.




We are part of the ( GGFi ) glass & glazing federation insurance scheme, offering different levels of insurance backed guarantees , the only insurance backed guarantee endorsed by FENSA.   




Carrying the Green Issue Further

Kömmerling is carrying the green issue even further as it continually strives to offer products of an exceptional quality whilst at the same time honoring its responsibility as a market leader to protect our environment.


A & C Rated Definitive Energy Plus

Now The Definitive collection is available with either BSI Energy A or C ratings arrow more