Secondary Glazing

Install secondary glazing and benefit from:
- Thermal insulation
- Sound insulation
- Window security
Secondary glazing keeps the original look of the building intact while a second window is placed internally, creating a secondary window. Secondary glazing means benefits such as thermal insulation, sound insulation and added window security.
Secondary glazing can help reduce heating bills and keep heat in the building. The secondary window will stop heat reaching outside and save energy.
As a sound insulator, secondary glazing will minimize acoustic leakage. The secondary window will protect against any distracting outside noise pollution such as traffic, aircraft and noise generated by other buildings/factories.
With secondary glazing the added security is obvious. Rather than having one window that an intruder may enter into, there will be two windows. For extra security we recommend using Polycarbonate Glazing Sheets as this type of secondary glazing is virtually unbreakable.
Please Note:
Bay Plastics are a materials supplier. We do not install secondary glazing or advise on installation!
Secondary Glazing plastics
Glazing plastics used for secondary glazing:
- Polycarbonate Glazing Sheets
Very high impact resistance, virtually unbreakable. Ideal for security glazing. 2mm-12mm thickness
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- PETG Glazing Sheets
Light, strong, clear and easy to work with PETG glazing sheets 2mm-6mm thickness
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- Perspex Glazing Sheets
Seals the multiwall to stop dirt entering the carport roof
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We carry an extensive range of stock to accommodate the diverse market for semi-finished plastic materials, offering custom sizes on all general plastics. Our professional cutting service will ensure quality finishes and rapid turnaround at all times.

With over 20 years of expertise in the fabrication sector, our commitment to service & quality, along with unrivalled product knowledge enables us to guide you in all aspects of plastic material selection, from component design through to production.