Hi everyone, looking for a little advice on fitting some windows if poss.
I've fitted quite a few windows in the past (I'm actually time served as a bench joiner in previous career....but mainly on the manufacturing side), UPVC and timber but always been able to get solid fixings before.
Mother in wants some new hardwood windows which I've been asked to fit. Looking at the old windows they sit in the cavity and are pushed up tight to the inside of the outer brick skin, and then pointed in with trowel mastic.
The new windows are not made yet so there is a choice of making them the exact size of the opening or again slightly wider and try and wriggle into the cavity.
Anyone know the best way of fitting these, usually I would drill straight through the rebate in the frame with frame fixings but in this case it would be into fresh air.

Two options I've considered are:

Can I use something like 1" steel straps cut into 6 or 7" lengths, screw to outside of the window (straps pointing in), offer the window in and then fasten these to inside reveals (the straps would be lined over with ply or such anyways as the old lining is shot)?
Also using this method I imagine it would be better for the windows to be actual size of opening rather than trying to get into cavity and tight against outer skin.

Other option I considered would be to try and wriggle windows into cavity and up against outer skin of brick on the sides, wedge against outer skin and then foam where possible. Rebuild lining against new frame effectively trapping it?

I feel the first option might be the way but would love some input on this.
Thanks.

Your first option is a very common way of fixing windows nowadays, and then foamed in afterwards.

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One day it will all be firewood.

Hi Jonno,

Option 2 would be my preference, but I am a new build merchant, but if your Ok with a bit of plastering, your in!

SSM

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Measure twice, cut once!

what style window is in atm? how old is the house

old sash windows are fitted upto the brick as you say but the internal opening is lots bigger to allow for the weights box so it dont get slotted into the cavity it just sits in then the internal lining holds the window

Give us some more info on the types of windows. I'd say option 2 for the sash, if you'd got the room in the wall, otherwise go for option 1 because that's how our double glazing was done and it seems ok so far (touch timber lol)

Sheds old chap, me thinks you should check the dating of some of the threads you are responding to!..

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By eck! ©

Sorry, matey! Just did a search for things I've had experience with to try and get stuck in... should have checked the dates on these :/ Apologies again