Replacement doors and windows
Last updated: 21/04/2009
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The replacement of windows, rooflights and some doors is
controlled work , which must be registered.
There are two methods of doing this;
- submit a building notice application with the appropriate
fee to us, or
- use an installer registered under the FENSA or CERTASS self
certification schemes
Installers registered under these schemes are able to carry out
the work without the need to submit an application to us. On
completion of the work the scheme operator will notify us that
the work has been carried out, we keep a register of all of these
notifications. Enlarging existing openings or providing new
openings is not covered by the FENSA or CERTASS schemes.
When replacing windows or doors it must be ensured that:
- the opening parts of windows are not reduced in size so that
escape out of the windows is made more difficult
- the ventilation provided to the room is not reduced
- the replacement is thermally efficient. Single glazing is not
acceptable except in the case of listed and historic buildings or
buildings located within conservation areas
- the provision of background ventilation must be no worse than
provided by the existing windows
- there is no risk of falling from opening lights below
800mm