With the window removed find a nice solid and level bench to place it on. If you’re working on a side or top opening section you should be easily un bolt it from the carriers and remove it. To make the job a little easier, if you can, remove the whole window and frame so that you can work on it on a flat level surface. One stray hammer blow can easily shatter the glass, sending shards all over the place, so make sure you’re protected! Step 1 – Remove the Window if Possible ![]() Decent hand any eye protection is an absolute must. How to Remove and Replace Glazing Putty and Single Pane GlazingĪs we have established, this is a bit of a tricky, delicate and time consuming job that essentially involves prying or hammering next to a thin pane of glass – a recipe for disaster!Īside from this, if you work carefully and take your time then it’s more than possible to remove the old glazing putty and piece of glass and replace the whole lot and still get a good finish.Īs with any DIY job and this is no exception, always wear suitable protective gear and clothing. To find out more about lead paint and how to strip it safely, see our project on stripping lead paint here. If there is even the slimmest of chances that this may be the case then you should definitely not attempt to touch or disturb the putty in any way! It will need to be removed by specialists in a controlled manner.įor more information on the dangers of asbestos and also on a DIY testing kit that can be used to test any suspect putty for traces, see our project on asbestos here.īesides the dangers posed by asbestos, you also need to be aware of the dangers posed by lead paint.Īgain, if the windows you’re working on haven’t been touched or restored since the late 80’s or early 90’s, there’s a chance that the existing paint could contain lead. If your windows are particularly old and have never, or at least not in the last 30 years, had the putty replaced then there is a chance that the putty itself may contain asbestos. This common misconception does lead some DIY’ers to try and replace panes of glass into frames just using the putty to hold it with not much success and more often than not a smashed pane of glass on the floor.įortunately, if the window putty was applied correctly in the first place, it can last for many many years before it needs to be replaced, so thankfully, this shouldn’t be a job that needs to be done too often.Ī single pane glazed window using traditional putty to seal it that’s now old and damaged A Quick Note on Asbestos and Lead Paint The glazing putty is simply there to seal the glass to the frame and prevent any draughts or water ingress into the frame. Small nails or spriggs as they are also known were then hammered down into the frame to hold the glass in place.Ĭontrary to what some people think, it’s the nails that hold the glass in the frame and not the glazing putty. Why was Glazing Putty Used?īack in the days before upvc and double glazing, windows were traditionally formed by using either steel (usually galvanized) or timber to build the frame and a single pane of glass was dropped into it. This may sound like a very simply straight forward job, but if you have never done it before there is a fairly wide scope for things to go wrong, so read on below for tips on how to remove old putty with the minimum of fuss. Once the putty is gone, remove any glass retaining nails and then the glass should pop straight out. ![]() Removing and replacing old glazing putty from single pane window frame to remove the glass is one of the all time most hated jobs by tradesmen and DIY’ers alike.Įssentially, removing single pane glazing is as simple as prying away any old putty (or glazing compound) from the window frame and softening any stubborn areas with a heat gun or linseed oil as required.
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