Norseal offers a range of letterplates to suit applications that require fire, smoke and acoustic capabilities.
The Norseal Advantage and Norseal Advantage Plus ranges are our low-cost fire rated letterbox, ideal for external doors or for use within apartment blocks.
We also stock Norsound's NOR400 range of acoustic letterboxes, the ideal comprehensive solution for an acoustic rating of up to 40dB combined with fire and smoke integrity of up to 60 minutes.
Added to this, we also stock letterbox security. Our security cowls can be fitted to the inside of a letterbox to provide extra protection to your home or place of work.