Misted double Glazed Units

[stevedo]

I have three double glazed units that have started to mist up inside the unit. There are a number of companies locally (Reading area) who can either supply and fit or supply only the replacement units rather than replace the whole window.

My question is, what's involved in removing the old units and replacing them with the new ones. Would I need any special tools and materials in addition to the units themselves? Is it a DIY job, I am a competent DIYer.

Also does have anyone have a recommendation for a supplier of these units (Reading area).

Many Thanks
Steve

 

[philipdayton]

Are the windows internally or externally glazed (which side are the beads on)?

 

[stevedo]

If by beads you mean the rubber "seal" then they are on the inside i.e the seal that looks like it might come out relatively easily (lifting in a couple of corners).

 

[philipdayton]

Forgive me prob should of asked this first:-

1. are the windows UPVC?

2. If so when you view the windows from inside and outside, on one side the window will be a continous form and on the other their will be a separate section which clips into the window profile.

 

[stevedo]

1. Yes

2. Clips are on the outside - is this secure?

 

[philipdayton]

Secure enough.... at the end of the day, if someone really wanted to get in they would break the window.
New windows are primarily internally glazed
Anyway, it sounds as if the rubber gasket on the inside is almost perished from your earlier post and as this would need to be removed to get the unit out you may be left in a mess.
The method for replacing the unit would be:-
-remove the internal wedge gasket
-the external beads should now be easier to remove with the use of a pallet knife or simular
-the unit may now be loose so be careful!
-Measure unit and order replacement (also measure unit thickness)
-replace in reverse.

Hope this helps

 

[stevedo]

Many thanks for your help, gives me the confidence to go ahead and do the job myself