Filing or sanding UPVC

seth plum

I have to change the letterbox in my double glazed front door.
Took the old one off, but the new one tantalizingly won't fit in the aperture.
I need to make it bigger (and also drill a hole in the UPVC.) Have tried sandpaper but can't tell if it works, and the amount needed to come off is too thin to cut in any way.
Will a decent hefty file do the trick?

MuttleyCAFC

I could be wrong, but I think there is a tool for this. I recall doing it at School for a pencil case project (the finished item kept falling over!), but that was many moons ago so could be my memory playing tricks.

guinnessaddick

seth plum said:

I have to change the letterbox in my double glazed front door.
Took the old one off, but the new one tantalizingly won't fit in the aperture.
I need to make it bigger (and also drill a hole in the UPVC.) Have tried sandpaper but can't tell if it works, and the amount needed to come off is too thin to cut in any way.
Will a decent hefty file do the trick?

Bastard?

Hastingsaddick

guinnessaddick said:

seth plum said:

I have to change the letterbox in my double glazed front door.
Took the old one off, but the new one tantalizingly won't fit in the aperture.
I need to make it bigger (and also drill a hole in the UPVC.) Have tried sandpaper but can't tell if it works, and the amount needed to come off is too thin to cut in any way.
Will a decent hefty file do the trick?

Bastard?

That may leave the finish a tad rough though.

Lincsaddick

UPVC ? .. don't inhale the dust .. VERY dodgy stuff

T_C_E

Hastingsaddick said:

guinnessaddick said:

seth plum said:

I have to change the letterbox in my double glazed front door.
Took the old one off, but the new one tantalizingly won't fit in the aperture.
I need to make it bigger (and also drill a hole in the UPVC.) Have tried sandpaper but can't tell if it works, and the amount needed to come off is too thin to cut in any way.
Will a decent hefty file do the trick?

Bastard?

That may leave the finish a tad rough though.

Use a smooth bastard
Or try to buy/borrow/steal on of those Dremmel/bremmel

Norman_Smith

To be pedantic it hasn't been UPVC since the early 90s when the EU changed it to PVCU. I remember this because I was working on two windows magazines at the time and it was a complete pain in the backside to change everything.
Since the change I have never heard anyone refer to it as anything but UPVC!
I know I need to get a life.

palarsehater

A rasp would do the job? The letter box escutcheon should cover the rough edges

seth plum

Thanks everybody for the advice.

iainment

When are you buying your new door?

guinnessaddick

iainment said:

When are you buying your new door?

You're only supposed to sand the bloody doors off.

valleynick66

Just file it if it is that small an adjustment.