In article ,
Crag wrote:
Thanks for all the replies. Is it possible to have trickle vents fitted
into DG after they're fitted? Are there any PVCu installers that offer
such a service?

Some, at least, appear to be an add on unit which would require
enlargement of the opening, or a smaller window.

--
*7up is good for you, signed snow white*

Dave Plowman London SW
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