Why Sonic?
COMMUNICATION
All Sonic Windows are specifically designed to aid both audible and visual two way communication, in most cases with the aid of in-built electric intercom systems. They can also incorporate a variety of opening shutters, sliding or rotating trays for the secure exchange of cash and documents.
HYGIENE
All acoustic windows incorporate a micro-thin inner membrane which acts as a barrier to draughts, dust and germs.
SECURITY
Two levels of security offered:
- Protection against physical attack
- Protection against firearm attack
CONSULTATION
Full consultation service offering advice, design, manufacture and installation.
Sonic Windows are Safe Contractor Approved 
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Sonic system gained approval from ‘Royal Institute of Health & Hygiene’ as long ago as 1950
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