What type of door, wood upvc, metal?
Second thing, the finish, chrome, brass,etc.
Was thinking about this last night too. Maybe some magnets?
I got this one to fix our noisy drafty one. It's perfect, doesn't make any noise.
10 Inch (250mm) White Letterbox - DOORMASTER Letterplate - Designed for Door Thicknesses Between 40-80mm https://www.amazon.co.uk/dp/B01LQPE2A6/ref=cm_sw_r_cp_apa_5hV9Bb3QVG09K
They do 12 inch ones also.
Got it today,and fitted it.
Didn't have to trim the sleeve, as it fitted the aperture no problem, just had to widen the screw holes a bit.
It does feel stiffer, so hopefully, no more clacking!, will just have to see how it goes
EDIT: ******* down now, and no leaks![]()
you could just stick a very small rag in the letter box. so it hits off the rag muffling the sound. or tape some material to the back of the flap so it muffles the sound. much cheaper solution than buying a new one and you can't see it as it's hidden by the flap.