GRANADA SECONDARY GLAZING
At Fox Windows & Doors, our Granada secondary glazing offers exceptional noise reduction and improved thermal comfort while fitting seamlessly with your original windows—all with minimal disruption to your home. It’s a discreet solution that lets you enjoy the charm of your property with added peace and comfort.
- Soundproofing
- Fits Discreetly in Original Frame
- Improved Thermal Efficiency
About Granada Secondary Glazing
As the UK’s leading secondary glazing manufacturer, Granada blends decades of expertise with the latest technology to create solutions that truly enhance your home. At Fox Windows & Doors, we’re proud to be a Granada-approved installer, offering secondary glazing that preserves the beauty of your traditional property while significantly reducing noise by up to 80% and improving thermal comfort—all without the disruption of a full replacement.
With over 35 years of experience, Granada’s precision-crafted frames deliver unmatched quality, we complement that with our dedication to outstanding service. As a Which? Trusted Trader, we’ll help you choose the perfect solution and ensure a seamless installation, providing a quieter, warmer, and more comfortable home without compromising its character.
Enjoy a Quieter, Warmer, and More Secure Home with Secondary Glazing
Secondary glazing is the most effective way to reduce external noise, cutting it by up to 80%, outperforming even double glazing. Whether you live in a busy city or near a main road, Granada’s made-to-measure secondary glazing helps create a peaceful, quiet environment within your home.
It’s not just about peace and quiet—secondary glazing also significantly reduces heat loss, making your home up to 65% more energy efficient. This means lower energy bills and a smaller carbon footprint, making it a smart choice for your wallet and the environment.
In addition to its acoustic and thermal benefits, internal secondary glazing enhances your home’s security in a discreet manner. It fits seamlessly into your existing window frame, providing added protection without altering the appearance of your property. It’s also hassle-free, with no need for external access, making it an ideal solution for all building types, including historic properties and multi-storey buildings.
Get a bespoke secondary glazing cost from Fox Windows & Doors today!
Features and Benefits
Solutions for Any Property
Whether you own a new build, listed property, or commercial property, Granada’s made-to-measure secondary glazing fits your unique requirements with a strong, slim, and unobtrusive aluminium profile.
Comfort, Quiet, and Security
Retain heat and add security. Granada’s slimline secondary glazing improves the thermal insulation of existing single-glazed windows by around 65%, approximately 10% more than double glazing. Enjoy a warmer, quieter, and more secure home—without the hassle of replacing your existing windows.
Precision Engineering
Our secondary glazing involves the precision installation of barely noticeable slimline glazed units. Enjoy ultra-slim sightlines and a wide range of colours to match your existing window style.
Discreet Glazing Option
Compared to replacing your windows with double glazing, adding secondary glazing creates a neat and seamless way for you to have all of the advantages without the inconvenience. This is particularly important for heritage properties as complete replacement may not be an option or cause significant disruption to the aesthetic of your home.
Significant Noise Reduction
Our Granada secondary glazing can be an exceptional way to reduce outside noise, as soundproofing can offer up to 80% reduction in noise. So once the Granada windows have been installed, you can enjoy a more peaceful home without any concern of noise from the outside.

Granada Secondary Glazing Brochure
Take a look at our Granada brochure to learn more about the benefits of Granada secondary glazing and how this option can be the perfect fit for you.
Product Gallery
View GalleryJust wanted to say we had our secondary glazing and back door installed this week and it all looks great. Thank you for your advice. The black frames in the front room in particular are brill and that was down to you. We’d never have thought of that.
Martin and Caroline
Our Showroom
If you would like to view the finest range of secondary glazing, we can welcome you to our showroom so you can see our premium Granada secondary glazing face-to-face. Our friendly team can help guide you through to the product that suits your needs and give you inspiration for your home improvement project.