Have my double glazing units failed?

2013yearofthehouse

One of my double glazing units has a foggy patch on the interior side of the exterior pane - it's shrunk in size in the last hour. Has the unit failed i.e. has the seal probably broken? I suppose I figured a failed panel would have condensation all over and be more wet than misty, plus it seems odd that it's such a clearly defined shape, but then I didn't notice it until midday, it could've been worse this morning. Although, I suppose either way, it will probably get worse and need replacing?


A second unit, in another room, isn't misty but does have water droplets on the surface in a small patch (again interior side of exterior pane) - so different reaction, but same problem?


I'll check them first thing tomorrow morning and see what it's like then.

anotherbaldrick

Yes both units have failed, need replacing when you're in the mood.

cayennepepper

Yes that happened to one of my windows as well, luckily they were still under warranty so had a new seal replaced for free.

2013yearofthehouse

Thanks to both of you.

Windows are only about 6 months old, so definitely well within warranty - will call double glazing company on Monday.

JohnB47

Yep. One of mine has done the same. Mine are about 7 years old, however, so no warranty.

thebaldwindowfitter

definatly failed

UncleZen

Apparently this can be cured see this link
http://www.condensationinwindows.co.uk
I've not tried this, and I don't know how much they charge, but they give a 10 yr guarantee. I've no doubt that there will be arguments for and against replacement vs renovation. I have 5 windows that need sorting.

robatwork

UncleZen wrote: »

Apparently this can be cured see this link
http://www.condensationinwindows.co.uk

Am in the same position with a few of my units. I notice on that website:

Q.1 How much does it cost to have my windows defogged vs. replaced?

A. On average double glazing companies charge around £100 per square meter for replacement units, the company sends a surveyor out to measure up for a new unit and take payment etc, a week or so later the company sends a fitter out to replace the unit and dispose of the old unit into a skip or landfill. The company would normally offer the customer a 5 Year guarantee.

We on the other hand would send a technician to the job and carry out the work there and then, no need to order any units or call back in a week to fit. The unit could be repaired in less than 20 Minutes with no waste glass to dispose of typically saving the customer 50% on replacement costs and what's more we issue a Twenty Year Insurance Backed Guarantee at our cost.

Which doesn't actually give the A to the Q!

My gut feeling is - good money after bad - and to get the units replaced.

2013yearofthehouse

I checked the windows this morning and they're fine. I think yesterday was after one of the coldest nights we've had all winter, so it appears to only happen when it's been sub zero outside. This means I'll have nothing to actually show the double glazing company and also means I can't check whether all the other windows are ok. Annoying since it's starting to get warmer, so may not happen again any time soon. Although, I suppose they may get worse and it'll start happening more? Not sure whether to just monitor it for a bit or still ring company tomorrow.

Ruski

If they're 'A' class windows, you will get condensation on the OUTSIDE - are you sure it's internal??

HTH

Russ

2013yearofthehouse

Ruski wrote: »

If they're 'A' class windows, you will get condensation on the OUTSIDE - are you sure it's internal??

HTH

Russ

Haha, yes first thing I did was wipe the outside of the window to check!
Definitely internal