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Secondary Glazing Made Simple

• Easy DIY Installation • Reduce Heat Loss • Cut Outside Noise • Save On Energy • Delivery Within 10 Days*

IP: 216.73.217.39
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Buy Secondary Glazing Direct from the Manufacturer at Trade Prices — Nationwide Delivery

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✅ FREE DELIVERY (Zone 1) ✅ Made to measure ✅ 10-Year Guarantee ✅ Specials available ✅ UK technical support

What Our Customers Say

Real feedback from recent Secondary Glazing Online customers.

5 Star Trustpilot

Easy DIY install

Easy DIY install of a secondary glazing unit. Great product, looks good, good price, excellent communication and advice.

5 Star Trustpilot

Very happy with the product

The website is very easy to use, I ordered acoustic glass because of a noisy neighbour. Very satisfied with the build quality and the fit was perfect. More importantly, it works, very good at blocking noise.

5 Star Trustpilot

Easy to order website

Easy to order website, good communication and efficient delivery. The Slider fitted perfectly. Vicky was great with the follow-up making sure the whole process had gone smoothly.

Choose the Right Secondary Glazing Style

Different openings need different solutions. Start your quote with the system that best matches the way your window needs to work.

With Verical bars

Horizontal Sliding

Horizontal Slider

Perfect for wide multi-pane windows that have vertical bars, such as casement windows. Panels slide to give easy access to the existing window for ventilation and can be removed for cleaning.

  • ✔ Ideal for wider windows
  • ✔ Multiple panel options available
  • ✔ Easy access for cleaning
Horizontal Bars

Vertical Sliding

Vertical Slider

Ideal for windows with horizontal bars, such as vertical sliding sash windows. Available with balances and with a tilt back easy clean facility.

  • ✔ Best for sash windows
  • ✔ Keeps the same look and operation
  • ✔ Great for ventilation control
Regular Access

Hinged

Hinged Unit

Ideal for bays, providing fire escape and specialist applications. Can provide a large clear opening for greater ventilation and full access to the existing window.

  • ✔ Full opening access
  • ✔ Easy cleaning and maintenance
  • ✔ Familiar operation
For Tight Spaces

Lift Out

Lift Out Unit

Suitable for windows with a large clear glass area, windows in hard to treat areas or tight spaces. Ideal for bay windows and where other secondary styles are not possible.

  • ✔ Minimal frame and clean look
  • ✔ Excellent for occasional access
  • ✔ Cost-effective solution
Cost Effective

Fixed

Fixed Unit

Inexpensive, ultra slim-line and very simple to fit. Our Fixed secondary glazing is a system in its own right and is suitable where access to the existing window is not required.

  • ✔ Best thermal performance
  • ✔ Maximum noise reduction
  • ✔ Slim and discreet

Why Choose Secondary Glazing?

Secondary glazing is a smart way to improve comfort, reduce outside noise, and help retain the character of an existing window. It is especially useful for traditional homes, listed properties and buildings where full replacement is not desirable.

Quieter Rooms

Suitable specifications can help reduce external noise and improve comfort.

Better Warmth

Add another barrier between inside and outside to support thermal comfort.

Cleaner Appearance

Purpose-designed systems can remain discreet and sympathetic to the opening.

Flexible Options

A range of styles, colours and glass types to suit the project.