I had double glazed windows fitted last year and recently one of them started to drop and now wont close unless its pulled really hard. Im wondering if there is a way to adjust it without me having to call someone out. There is metal scissor action mechanism at the top and bottom of the window (side opening), there is purple plastic things that slide, ive had a go at moving these they dont seem to do anything. Does anyone have any ideas how i can do it myself or is it best to call someone out??

julie, September 2009

A Side hung casement sash is Squared by the use of glazing packers between the glass and the sash (behind the glazing beads). It is common for these packers to have either been incorrectly fitted or to have slipped or "bedded in". Repacking will probably be your solution requiring removal and replacing of the glazing beads. If you would like to attempt this yourself I would be happy to help you with a step by step guide to this procedure

mark williams, October 2009