Condensation between double glazed panels

[noobiediyer]

One of my windows suffers from condensation between the two panels. It's definitely not on the outside or inside, it's between the two panels. It seems to happen all year round and doesn't happen on any other window.

Having done some searching, it seems to be the panel seal that might have gone (there's no obvious cracks to the window). Is the seal something that can be easily repaired? Or will it be a new window panel replacement? There seems to be a mix of information and most of the sites that come back on Google are websites where they will repair/replace the window so I take the information on their site with a pinch of salt.

What is the approx cost of a seal repair and cost for panel replacement? (I'm in London, UK)

Many thanks

 

[Notch7]

A double glazed unit is 2 bits of glass with a spacer bar frame set in from the edge by 10mm or so.

That gap is filled with hot melt mastic.
It cant be repaired, double glazed units are cheap -it just needs the beads popping out and the new unit fitted.

 

[securespark]

http://www.christieglass.com/

 

[noobiediyer]

http://www.christieglass.com/

They returned a very good price but it doesn't include fitting. Are double glazing panels relatively easy to fit DIY?

 

[securespark]

Are they externally or internally beaded?

 

[noobiediyer]

Are they externally or internally beaded?

I didn't know what external or internal beading was so I had too google search. I think I know what it is (which side internal or external the window can be removed). I'll have to check this evening but I am pretty sure it is internally beaded.

Also, when I was asked about the measurements to get a quote, I measured the visible glass I could see within the frame. Which came to 99cm by 63cm. Obviously, there's some amount of window pane within the frame. So are these windows standard sizes in which case the true window pane size can be inferred or will I need to take out the window pane to measure the true height and width?

The next best quote I got was from a company that will charge x3 the cost but they do provide the fitting.

 

[crank39]

If you've measured the glass that you can see then you can generally ADD another 30mm for both width and height to get the overall size, the ideal way though is to measure from where the glazing bead separates from the frame, the glass physically cannot be any bigger as is wouldn't fit in the frame, so just DEDUCT 10mm from the width and height and it should come to roughly the same measurements as adding 30mm from the sight sizes

 

[noobiediyer]

If you've measured the glass that you can see then you can generally ADD another 30mm for both width and height to get the overall size, the ideal way though is to measure from where the glazing bead separates from the frame, the glass physically cannot be any bigger as is wouldn't fit in the frame, so just DEDUCT 10mm from the width and height and it should come to roughly the same measurements as adding 30mm from the sight sizes

Is this "rough" way of measuring acceptable though? Sounds like it could lead to being a few mm difference from the current pane. Won't that cause a problem?

 

[crank39]

Few mm won't matter, trade do it all the time, example - 1st floor window glazed from outside, need to measure from inside otherwise need to take ladders off the roof of van......a real PITA if your in a hurry, so measure sight size and add 30mm

 

[noobiediyer]

The beading is on the inside. I watched a video on YouTube and it also said to measure the thickness too. I hadn't done that but also the company didn't even ask for this. Not sure if it's standard. I can add on 3cm to the width and height but if I need to measure thickness then I'll need to take it out of the frame anyway so then I can get the exact measurement.

 

[Tigger90]

The beading is on the inside. I watched a video on YouTube and it also said to measure the thickness too. I hadn't done that but also the company didn't even ask for this. Not sure if it's standard. I can add on 3cm to the width and height but if I need to measure thickness then I'll need to take it out of the frame anyway so then I can get the exact measurement.

I have just replaced a window. It was really easy, I watched a few you tube videos and the best one suggested to remove the gasket on the outside first which I did. Then I had a bit of wiggle room to ease the beading off on the inside. Took the window out and put the new one in, replaced the beading then the gasket and all sorted.
I did buy a pack of those plastic packing things in case my measurements were off but turns out I didn’t need them

 

[noobiediyer]

I have just replaced a window. It was really easy, I watched a few you tube videos and the best one suggested to remove the gasket on the outside first which I did. Then I had a bit of wiggle room to ease the beading off on the inside. Took the window out and put the new one in, replaced the beading then the gasket and all sorted.
I did buy a pack of those plastic packing things in case my measurements were off but turns out I didn’t need them

Do you have a link to the youtube video?

 

[lostinthelight]

When you get the beads off its important to make a note of the position of where the spacers are

 

[Tigger90]

Do you have a link to the youtube video?

It was this one

 

[Tigger90]

I also kept all the baskets and beading in the right order!