Queries about how to replace this double glazed unit

[Larry1990]

Hi Guys,

Could I please pick your brains on replacing the double glazed units in my kitchen? Age is unknown but I've been here 10 years, no FENSA certificates when buying house so maybe 20 plus years?

The glass is really cloudy so I'd like to buy a new unit and replace it. I watched a few youtube videos and talked myself into ordering a moon knife and suction lifters but it looks like these are externally glazed?

Would I need any other tools and whats the correct order? I've read I need to remove the internal gasket, next remove the external beading, cut the glazing tape if present and lift out.

I know I need to renew the glazing tape, but are there any other parts that should be renewed like the gasket or beading? Finally are there any decent online retailers for replacement units or am I better off going local?

Thank you in advance for any pointers.

Larry.

 

[charliegolf]

My 25 year old house has needed six replacements in the last 5 years, and I've done all of them. Mine are internally glazed. My method has been...

Lever out* one of the beads, longer sides first.
Replace it! Now you know you can!
Remove them all, a helper holding the unit in place.
Keep beads where you can refit side for side.
Measure the unit** for W, H and Depth (usually 24 or 28 mm).
Replace, having noted the position of any packers.
Now you know you can do it!

Order up, and repeat when it arrives.

I've never changed a glazing tape or gasket! I have no leaks lol. I use a 50 year old local business. A 1000mm x 500mm x 24mm unit usually costs about £25-£30.

* I use a wood chisel!
** My glazier told me about a cheat for measuring without taking the beads off, and it is true in my house. But I still pop em off and check.

 

[Larry1990]

Hi Charlie,

Thank you for the pointers! I had a bash earlier today and managed to get the smaller unit out to measure, it was a bit of a pain (pane lol) ended up having to remove gaskets both inside and out to get the beading off and theres 16mm difference between the frame and glass size, got the beading and gaskets back on eventually.

Will attempt the larger frame another time.

Cheers

Larry