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JamesI, Developer
Category: Home Improvement
Satisfied Customers: 2155
Experience:  I have a portfolio of renovated houses, including DIY projects from installing bathrooms and new heating systems to rewiring.
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How do I safely remove some large rotten softwood windows

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How do I safely remove some large rotten softwood windows with old large single glazed glass panes? I've been given some used upvc replacements with perfect dimensions but these will need joining to fill the run, so how do I do that?

Hi my name is ***** ***** I will assist you today.

Firstly you need to remove the window pane, ensure you have eye shields and wear suitable gloves.

I would start by scoring around where the wood touches the glass to remove any silicon or paint which may bond the wood to the glass, then remove the the wood trim either with a wood chisel or claw hammer depending on the amount of wood rot you encounter, Once the surround has been removed the glass should be able to come out with minimal force, it often helps having one person pushing while the other person guides the pane out.

Next you need to remove the wooden frame, the best way to do this is lift out the interior window sill which should expose the brackets and fittings, you may also need to remove part of the interior wall cheek, to remove any brackets holding the frame in place.

Once the wood frame is removed its then a case of taking the uPVC frame and offering it up to the gap, make sure its square, and then securing the brackets into the walls.

If you are considering bonding two uPVC units together, the best thing to do is use a combination of silicon and screws, to ensure it stays strong and water tight, you wont see the screws as they will be by the windowpane. You may also want to use an extra bracket top and bottom to add extra security. Once the uPVC frames go in, its a case of using exterior silicon to fill any gaps, packing the interior frame and then installing the window units into the frame, squaring those off and fixing the trim to hold the pane in place.

If you need anything clarified please let me know.

Customer: replied 1 year ago.
Thanks James...your answer is as I had assumed. I had wondered if breaking the panes was recommended as some of the windows are large 2mx1m, the site is some distance fom the skip and don't want to carry panes through house. I have a plastic plasterer's bath that I could use for pieces? What do you think? Yes the upvc units are french doors and 2 side panels that originally were one conservatory wall. What screws are suitable into the steel frame inserts? What do you mean by brackets? I'd assumed to screw pvc frames directly through frames into gap uprights?
Thanks again

Hi Dave,

If you need to break the panes I would use tape on one side so you can control the glass. Its not ideal, but providing you havent got pets and Children in the area while your doing it and cleaning up its not a big problem, the plasters bath sounds a good enough transport medium to get the glass tot he skip.

Ive always used frame fixings (brackets) such as these ones here, alternatively you can use nylon sleeve frame anchors, it all depends on what your fixing into.

In terms of what screws to use for binding the panels, I have used self taping in the past, but you dont need anything special, just make sure they arent too long.


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