Cat Flap
Cat Flap
Where can I get a cat flap installed in double glazed doors?
I already know it is possible to get a cat flap in double glazed doors but I wondered in anyone knew any good places with reasonable prices (under £300) because I cant seem to find any.
**** I HAVE ADDED TO THIS ANSWER AT THE END ****
**** SECOND UPDATE AT END OF MESSAGE ***
Double glazed doors, or windows, usually have an inert gas between the layers of glass to reduce the transmission of heat through the door or window.
Installing a cat flap in a double glazed door would require cutting holes in both pieces of glass and doing this would allow the inert gas to escape and greatly reduce the R factor of the door.
Another problem would be that when the cat goes through the flap, some strain would be applied to the frame of the flap, and thus to the glass. Over time this strain would surely break the glass.
I'm surprised you found any place that will do it - did you actually find someone who will install a cat flap in a double glazed door? In the actual glass?
I've never heard of installing a cat flap in any glass door or window - I mean in the actual glass of the door or window.
When cat flaps are installed in windows, they are actually installed in a piece of wood, plastic, or metal which is inserted below the window - that is, the window is pulled up and something is inserted between the bottom of the window and the window sill into which the flap is installed.
When flaps are installed in doors, the doors are metal or wood and an hole the size of the flap is cut in the door.
I've never heard of installing a flap into the actual glass of a window or door, be it double or single glazed.
Do you have an address for a web site talking about installing flaps into glass? I'd like to read it.
You actually found someone who will cut holes in both pieces of glass and install a cat flap?
Do they offer a guarantee that the glass will not break? What do they say about the loss of the inert gas from between the pieces of glass?
Most double glazed windows have warranties against problems. Putting a cat flap in a double glazed door would surely void the warranty.
******Additional***
Are you talking about having someone remove a double glazed panel from the door and replacing the panel with a piece of glass, metal, wood, or plastic?
Or are you really talking about someone cutting a hole in both pieces of the existing panel and inserting the flap?
I stand by my statement that it would not be possible to do this in the actual double glazed panel
1) The glass is probably tempered and you can't cut tempered glass, either it will only be scratched or it will break into thousands of small pieces.
2) The inert gas will be lost from between the panes of glass.
3) It will totally void the warranty on the panel.
Now, if you are talking about someone removing a glazed panel from the door and replacing it with something else into which the flap is installed - okay, that could be done.
If that is the case, you weren't clear enough in your question.
Please edit/update your question to answer the questions I've asked.
*************Added*****
Here is a web site you need to read.
http://www.thewindowman.co.uk/cat-flap.htm
At the bottom it says it all:
"Although I have heard of Cat Flaps being fitted into glass and double glazed sealed units, I would not do it myself, or recommend it. Partly this is because any glass in the bottom of a door really should be 'tempered' (4 - 5 times harder to break, and if broken will shatter in to hundreds of small relatively harmless pieces). If you really do want the Cat Flap fitted in either single glass, or a double glazed sealed unit then you could consider 'Laminated' glass, but expect to put your hand in your pocket very deeply."
This guy will install a flap in a double glazed door but what he does is remove the bottom panel and replace it with something else.
Also read the thread at http://forums.moneysavingexpert.com/showthread.html?t=266888
The only way to install a flap in a double glazed door is to actually completely replace one of the panels.
You could have a custom made double glazed panel with a flap produced but it would cost you a fortune.
Biff The Cat Comes Through The Catflap
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