FAQ: The abbreviation FENSA stands for FENESTRATION - SELF ASSESSMENT.
The uk dictionary definition of the word fenestral or fenestrate is " belonging to or like a window" The word fenestration is "the arrangement of windows in a building". FENSA is used by double glazing uk trade companies to certify that their replacement windows and doors installed comply with Building Regulations Document L (and more), actually checking av. 1% of all replacement windows installations.
Did You Know?
Question: Around 80% of all original windows have already been replaced, so how does the double glazing industry survive.
Answer: We get a lot of business from people with 'new' houses wanting better windows, but the big answer is that the replacements of the 1970's and 1980's have now seen better days, the locks woefully inadequate for these times, and the styles (more particularly if they are also of the 'battleship grey' colour) are rapidly going out of fashion.
These pictures show two similar houses, both having their old replacement windows replaced with new PVC-U, and on the same start day. The left hand house is being done by A. N. Other Company, and the one on the right is being done by us. At this stage we had started to fitted the side windows on our job, but I obviously missed the rapid removal of the windows next door!
All done, old aluminium double glazed windows having now been replaced with PVC-U.
At last (and not before time) the myth that "you only ever fit new windows once..." is finally being dispelled completely.