Secondary Glazing

Energy Efficiency and Security When You Can't Replace Your Windows

Secondary Glazing Stratford-upon-Avon and Surrounding Area

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Discrete Design

Sits neatly behind your existing window with minimal visual impact and maintains the character of your home.

Noise Reduction

Creates another barrier that significantly reduces outside noise. A noticeable difference in comfort in busy areas.

Energy Efficient

The larger gap panes provides thermal and acoustic performance. A practical way to upgrade existing glazing.

Secondary Glazing For a Warmer, Quieter Life

Our aluminium secondary glazing system is the perfect solution for homeowners who are looking for additional glazing for their existing windows. Secondary glazing is designed to sit alongside your existing window to help reduce noise and retain heat to the property. Ideally suited for properties where replacing the prime windows is not possible or cost-effective. You could save up to 10% off your energy bills by installing secondary glazing.

Our aluminium secondary glazing is manufactured to the highest standard, it is lightweight, highly effective with a range of specialist glass options for maximum thermal performance and noise reduction. It is virtually maintenance-free and you retain the exterior character of your existing windows

Secondary Glazing is cost-effective with astounding simplicity and is an ideal solution for listed properties, period properties and houses in conservation areas where window replacement is either impractical or not allowed due to planning constraints.

Locations such as concert halls, control rooms, hotel bedrooms, homes, offices, sound studios, music rooms and museums are ideally suited to the installation of secondary windows.

Lift Out Secondary Glazing Windows

The lift out solution is ideal for listed and heritage properties where installing double glazing isn’t a viable option. It is ideal for windows that require only occasional access, with the unit capable of being easily lifted out when required.

Secondary glazing frames sit behind the window unobtrusively, adding a layer of insulation without affecting a property’s outer appearance. It creates the modern comforts of 80% noise reduction and 65% extra thermal insulation without sacrificing style.

Fixed Secondary Glazing Windows

This system is the most inexpensive and easy to fit the style of secondary glazing we offer. An effective method of reducing noise and heat loss, and considered to be the most easily reversible change. It has pre-drilled countersunk holes and is very popular in conservation areas, especially in leasehold properties where changing the existing windows may be uneconomical or an impossibility.

Fixed secondary glazing is part of our economic system and is the slimmest style of secondary glazing we offer, at just 20mm wide. The wool pile on the back of the frame helps create a good seal between the existing window, preventing draughts and blocking out sound.

They have no opening mechanism, no subframe and is simply face fixed directly onto the existing windows. This style of secondary glazing will provide no access to the prime window.

Benefits and Features of Secondary Aluminium Windows

Find the perfect match for your Granada window insulation system using our range of over 200 RAL colours. Whether you own a new build, listed property or commercial property, we can fit your requirement.
Float, obscure, toughened, laminated, ‘K’ and acoustic glass options
Made to measure
Face fix (odd leg or subframe) or reveal fix (extended subframe) options
Quick and easy installation
Supplied with trims to cover fixing screws
Retains the original exterior look of the buildings
Provides additional security
Reduces noise and adds insulation to your home
Helps reduce energy bills
Improves thermal insulation
Can incorporate fly screens if required

Secondary Window Examples

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Vertical Sliding Window

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Secondary Window

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Hinged Sliding Window

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Horizontal Glazing Unit

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Lift out Window

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Secondary Window

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Secondary Window

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Lift out Window

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Hinged Sliding Window

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Hinged Sliding Window

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Secondary Glazing FAQ's

How much does secondary glazing cost?

In many cases, secondary glazing can be a more cost effective solution than traditional window replacement. Whilst the high-quality, aluminium units may not be far off the cost of a new primary window, secondary glazing is a significantly easier product to install, often reducing the overall project cost.
Does secondary glazing work?

Secondary glazing is an incredibly effective way to reduce both external noise and heat loss. The air gap between the primary window and the secondary unit effectively acts as a thermal and acoustic insulator, reducing external noise by up to 80% and heat loss by up to 65%.
Can secondary glazing save you money?

When you invest in superb secondary glazing, you’ll add more glass to your window, protecting it from cold air. That way, you can preserve your windows for longer, and improve the performance of your home.
Will secondary glazing reduce my energy bills?

Given secondary glazing’s ability to reduce drafts and cold spots within homes, it’s a incanredibly effective means of lowering energy bills. Prior to the energy price crisis, one Manchester homeowner saved a whopping 40% on her energy bills post-install.
What's the difference between double glazing and secondary glazing?

Double glazing and secondary glazing are often mentioned together, but they are quite different in how they work and where they are best used.

Double glazing is a complete window unit. It consists of two panes of glass sealed together with a gap in between, usually filled with argon gas. This sealed unit creates an insulating barrier that helps keep heat in, improves energy efficiency, and reduces noise. It is the standard choice for most homes where windows are being fully replaced.

Secondary glazing works in a different way. It keeps your existing window in place and adds a second pane of glass on the inside of the room. This creates an additional layer of insulation without altering the external appearance of the property.

Both options can improve comfort and reduce heat loss, but the right choice depends on the property and what you are trying to achieve.

Double glazing tends to offer stronger overall thermal performance, as it replaces the entire window with a modern, sealed system. Secondary glazing, on the other hand, can be particularly effective for noise reduction, as the larger gap between the original window and the secondary pane helps to reduce sound transmission.

Secondary glazing is also widely used in listed buildings and conservation areas, where replacing the original windows may not be permitted. Because it is installed internally, it allows you to improve insulation while preserving the external character of the property.

Our aluminium secondary glazing systems are lightweight, discreet, and designed to perform. They are low maintenance and can be specified with different glass options to enhance both thermal efficiency and acoustic performance.

In simple terms, double glazing is the go-to solution for full window replacement, while secondary glazing offers a practical alternative where you need to retain the existing windows but still want to improve comfort, warmth, and noise control.