Call us today on: 0845 900 3899

Create a Peaceful, Warm & Secure Home with Secondary Glazing

Prevent draughts and heat loss through existing windows.

Secondary Glazing for Listed Properties

Supply or install on small to large commercial projects

Secondary Glazing for Homeowners, Tradesman and Commercial Projects

Block Noise With Secondary Glazing

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Reduce noise levels by up to 80% with secondary glazing

Secondary Glazing supplied in 10 working days

Supply or install on small to large commercial projects

Prevent draughts and heat loss through existing windows.

Choose Your Sector

Bespoke, Handcrafted Secondary Glazing

We specialise in the design, manufacture and installation of aluminium secondary glazing. This involves fitting a discreet internal window that keeps the character of your property and exceeds the benefits of double glazing. Whether you’re a homeowner or a commercial developer, find out how we can transform your property with secondary double glazing by calling us today on 0845 900 3899

What is Secondary Glazing

Secondary glazing is the process through which a discreet, internal window is fitted to an existing single or double-glazed window to enhance performance. It’s seen as a desirable alternative to double glazing – especially for heritage properties – as it allows you to maintain the external character of the structure whilst taking advantage of the benefits created by double glazing.

When you take advantage of secondary double glazing, you enjoy all the benefits that come with an extra layer of insulation over your windows. This cuts down on heat transfer, which means that your home stays warmer in the winter and cooler in the summer. But it also insulates against sound and enhances the security of your property. Read more about the benefits of secondary glazing here.

Secondary Double Glazing Adds Value

Secondary glazing exceeds the value of traditional double glazing. In addition to providing outstanding thermal and noise insulation, this style of glazing is also extremely discrete – to the extent that a casual observer would be unlikely to notice its presence at all. Your home will be warm and quiet with secondary double glazing.

This level of subtlety allows historic homes to retain their character whilst taking advantage of more recent breakthroughs in secondary glazing. We offer a wide variety of styles and finishes that you can install at your property, ensuring that the finish you choose blends perfectly with the existing design style and motif that are already in place.

Need Help Choosing the Right Secondary Double Glazing?

If you have a question about secondary double glazing, and what window type is the right choice for your property, please don’t hesitate to contact the Granada team.

Secondary glazing will:

Improve your home’s market value. A safer, more thermally efficient – and better looking – home will benefit from improved market value. Make your property more attractive to prospective buyers with secondary double glazing.

Reward you with more space. If your home, conservatory or extension is too cold or too hot to spend time in, you’ll be able to turn it into a functional room once again with secondary double glazing that’ll regulate its temperature.

Last you for a very long time. Granada will fit your secondary double glazing flawlessly and in such a way that it will add lasting value to your home. Contact us to find out more and ask us for a free secondary double glazing quote.

Secondary Glazing for Homeowners

There are many reasons for homeowners to consider installing secondary double glazing from Granada – beginning with thermal insulation. Air-conditioned spaces allow in less heat during the summer, while less heat escapes during the winter. Needless to say, reducing heat transfer through the windows can have a significant effect on your monthly heating and cooling bills. And with the range of secondary glazing styles we have available, you’ll end up with an attractive, unobtrusive finish that is sympathetic to the surroundings and existing window styles.

 
 

Secondary Glazing for Architects & Commercial Clients

The Granada ethos is simple. We value transparency and always strive to exceed expectations regarding the sourcing, supply and installation of high-quality secondary double glazing. Our architectural and commercial partners trust Granada to expertly design, specify and install windows on their properties.

We serve as project managers for every glazing task we’re chartered to carry out, offering a seamless start-to-finish service. Whether you’re designing a new property or renovating an existing one, Granada is ready to assist. Contact us today for more information about our secondary double glazing and more.

Secondary Double Glazing For our Trade Partners

At Granada, we value our trade customers. They’re the lifeblood of our business, providing us with opportunities to expand our service area and deliver secondary glazing to a broader base of customers. We focus on providing support materials, installation videos, technical guidance, display samples and excellent response rates.

With that in mind, we do everything we can to maintain an impressive product portfolio and to provide our secondary glazing products at competitive price points. We understand that our partners rely on us to help them maintain a strong reputation, which is why we offer in-depth technical support and insist on using the highest quality products.

 

For Homeowners

There are many reasons for homeowners to consider installing secondary double glazing from Granada – beginning with thermal insulation. Air-conditioned spaces allow in less heat during the summer, while less heat escapes during the winter. Needless to say, reducing heat transfer through the windows can have a significant effect on your monthly heating and cooling bills. And with the range of styles we have available, you’ll end up with an attractive, unobtrusive finish that is sympathetic to the surroundings and existing window styles.

Homeowners Range

For Architects and Commercial Clients

The Granada ethos is simple. We value transparency and always strive to exceed expectations in regard to the sourcing, supply and installation of high-quality glazing products. Our architectural and commercial partners trust Granada to expertly design, specify and install windows on their properties. We serve as project managers for every glazing task we’re chartered to carry out, offering a seamless start-to-finish service. Whether you’re designing a new property or renovating an existing one, Granada is ready to assist.

Architects & Commercial Range

For our Trade Partners

At Granada, we value our trade customers. They’re the lifeblood of our business, providing us with opportunities to expand our service area and deliver our products to a broader base of customers. We focus on providing support materials, installation videos, technical guidance, display samples and excellent response rates. With that in mind, we do everything we can to maintain an impressive product portfolio and to provide our secondary glazing products at competitive price points. We understand that our partners rely on us to help them maintain a strong reputation, which is why we offer in-depth technical support and insist on using the highest quality products.

Why Secondary Glazing?
Sound Insulation

Secondary double glazing offers the most effective sound insulation – significantly outperforming double glazing. Our windows can reduce noise levels by up to 80%.

Thermal Insulation
Thermal Insulation

Secondary glazing improves the thermal insulation of existing single-glazed windows – reduces heat loss through the window by around 65% – around 10% more than double glazing.

Increased Security
Increased Security

Secondary double glazing offers an affordable, discreet, highly effective solution to enhancing building security. No external access is required, ideal for multi-storey buildings.

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Secondary-Glazing-Noise-Reduction
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Retain the Character of your Property

One of the most important benefits of secondary glazing is the fact that it can enhance the technical performance of a property without detracting from its charm or character. By taking advantage of our glazing products, you’ll also benefit from added security, reduced draughts and 60 percent boost in thermal performance when compared to single-glazed windows. Secondary double glazing will significantly enhance your property.

Contact us for a Secondary Double-Glazing Quote

For more information about the benefits of our secondary glazing – or to discuss our range of high-performing windows – please contact our experienced team. We will be able to discuss your design objectives in more detail and recommend a suitable product.

If you would like secondary double glazing prices, please use our online quote tool. You can use it as many times you like to generate cost comparisons. Granada has the experience to install your secondary double glazing perfectly the first time, so that it adds long-term value to your home.

Value for Money

Secondary glazing offers better value for money compared to regular double glazing as it is often cheaper but has more benefits. Get your free estimate today and see the difference for yourself.

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UCL Torrington Place

The University College London has recently installed acoustic secondary glazing as part of a new development programme managed by the main contractor, Strcuturetone Ltd.

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St John’s Institute – London

St John’s Institute of Larcom Street, built at the very beginning of the 20th century under the auspices of Rev. A W Jephson, vicar at the nearby St John the Evangelist Church.

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Secondary Glazing for Hotels – Good Night Guarantee

A national hotel chain has installed Granada’s acoustic secondary glazing to guarantee a good night’s sleep and decrease noise levels by up to 54 decibels.

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What is Secondary Glazing?

If you’ve not encountered the term before, you may be wondering what secondary double glazing is and why you should consider using it. It is an incredibly versatile form of glass that is engineered to...
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The Thermal Benefits of Secondary Double Glazing

The best place to start is with an explanation of secondary double glazing. Not everyone is familiar with this term – so, before we explain the benefits of secondary double glazing, we’ll provide you...
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Cold Bay Window

Timber windows give a property, charm and character. Over time they can leak vital heat, for the winter months, this can cause a room to feel cold and also increase energy bills.

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