Special offers for our customers
Mix and match package discounts on all product ranges – all year round
- For packages over £10k – get 5% discount
- For packages over £20k – get 10% discount
- For packages over £25k – get 15% discount
Secondary Glazing Windows
Discreet Protection, Lasting Comfort – Secondary Glazing That Preserves and Performs.
Our bespoke secondary glazing units, also known as secondaries or secondary windows, offer an unobtrusive, energy-efficient option, installed discreetly on the inside of your existing windows, keeping the historical charm intact. With secondary glazing, you can experience significant reductions in external noise, making your home a peaceful retreat, while also improving thermal efficiency, helping to keep your space warm and reducing energy costs.
In addition to noise reduction and better insulation, secondary glazing also adds an extra layer of security to your home.
Our secondary glazing units are tailored to fit your windows perfectly, blending seamlessly into your interiors without compromising the building’s original design.
Whether you’re looking to enhance comfort, reduce your energy bills, or simply protect your home from the hustle and bustle of the outside world, secondary glazing is a cost-effective and approved solution for listed buildings.
Preserve your home’s heritage while enjoying the benefits of modern living—choose secondary glazing for your character property.
Our certifications
Types of Secondary Glazing Units:
UGS Ltd offers a comprehensive range of secondary glazing units, available in both standard and made-to-measure custom sizes to suit any project. We supply and install secondary glazing in aluminium with options available in both Standard and Heritage (slim) profiles.
Choose from a variety of finishes, including the full RAL colour spectrum, and select from single, double or triple glazed to meet your specific needs and budget.
Explore our personalisation options for more details, Book a Free Survey Appointment, or simply fill out our Distance Quote form for a quick estimate.
The Horizontal Sliding Sash secondary glazing unit is designed to fit seamlessly alongside your existing windows, providing enhanced thermal insulation and noise reduction. This system allows for smooth side-to-side movement, making it an ideal solution for properties where easy access to ventilation is needed. The slimline design of the horizontal sliding sash maintains a discreet appearance while providing the benefits of reduced energy costs and improved comfort, all without compromising on style or functionality.
The Vertical Sliding Sash secondary glazing unit offers a traditional, elegant solution for enhancing the performance of your windows. With a vertically sliding mechanism, it allows for optimal ventilation and easy cleaning. This unit is perfect for sash windows in period properties, where the character of the original window must be preserved. The addition of secondary glazing enhances both thermal efficiency and soundproofing, making it a great choice for homes in busy or noisy areas, while still maintaining the aesthetic appeal of the window design.
The Hinged Casement Sash secondary glazing unit offers a practical solution for homes requiring easy access and flexibility. The hinged design allows the secondary glazing unit to open outward, providing convenient access for cleaning and maintenance. This style is ideal for larger windows or properties where full opening capabilities are necessary. Not only does it enhance the energy efficiency of your home, but it also provides improved noise insulation, offering a quiet, comfortable indoor environment without compromising on style or usability.
The Fixed Sash secondary glazing unit provides a secure and permanent solution for improving thermal insulation and soundproofing in your home. This fixed unit is installed in place without the need for any moving parts, making it an ideal choice for windows where ventilation is not required. It is perfect for enhancing the performance of single-glazed or older windows, creating a highly energy-efficient barrier that helps reduce heat loss and prevent outside noise from entering. The simple design ensures a sleek and effective upgrade with minimal disruption to your existing window structure.
Customisation Features
Personalise Your Windows with UGS Ltd.
At UGS Ltd, you can fully personalise your windows with direct manufacturer options, from opening styles to accessories—we’re here to guide you every step of the way. Book your one-on-one Zoom call and design your perfect units in real-time. Using the latest visual technology, we’ll not only help you create your custom windows but also provide a sneak peek of how they’ll look once installed at your property.
Material
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Aluminium
Finish / Colour
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All RAL colours
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White
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All RAL colours - Dual
Glazing Options
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Single
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Double
All Pilkington range
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Transparent
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Frosted
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Warwick
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Chantilly
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Reeded
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Digital
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Taffeta
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Oak
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Contora
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Charcoal Sticks
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Floirelle
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Mayflower
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Pelerine
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Everglade
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Cassini
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Tribal
No- obligation visit, no-obligation advice - Ultimate Solution
During our on-site surveying visit, we bring your designs to life by demonstrating various unit options, helping you visualise the perfect windows and doors for your space. This ensures you make informed decisions based on real-time insights and expert recommendations.
Not sure what you need or require expert advice for your project? No problem! We offer a no-obligation surveying service and professional guidance. Our team will visit your property, discuss your requirements, and recommend the best solution to suit both your space and budget. Contact us today to arrange your consultation.
On-Site Visualisation & Design – Surveying Visit Benefits
Turn your ideas into reality with our interactive visualisation service, available during your surveying visit. Using an iPad, our surveyor will draw your windows and doors in real time, transforming them into detailed, live models. This hands-on approach allows you to explore different specifications, colours, and accessories right there and then, ensuring every detail is tailored to your preferences.
Once your units are designed, we can apply them to front and back images of your property, giving you a clear preview of the final look before installation. This innovative service ensures that your new windows and doors seamlessly complement your home’s aesthetic, providing confidence in your choices before placing an order.
📅 Book your surveying visit today and experience the future of home design—right at your doorstep!
Why Our Design & Visualisation System Stands Out
Our advanced design platform takes the guesswork out of ordering. With just a few clicks, we can showcase:
- ✅ A wide range of styles, finishes, and configurations tailored to your needs
- ✅ Instant visualisation of how different options will look in your home or office
- ✅ Real-time pricing and customisation for a smooth, efficient experience
It’s fast, fun, and hassle-free — all designed to put your preferences at the forefront of the process.
At UGS Ltd, you don’t just imagine your perfect space — you see it come to life before your eyes.
Frequently Asked Questions (FAQ)
Please note that the information provided here is subject to change. For the most up-to-date details, we recommend contacting our company directly.
We provide a standard 10-year manufacturing warranty on all our secondary glazing units, ensuring long-term performance and peace of mind.
Secondary glazing involves installing an additional pane of glass or acrylic on the interior side of your existing window. This creates an insulating air gap that enhances thermal performance and reduces noise transmission.
Secondary glazing can significantly reduce noise levels by up to 80%, making it an excellent solution for properties in noisy environments, such as those near busy roads or airports.
Yes, secondary glazing can improve thermal insulation by up to 65%, helping to retain heat during winter and keeping interiors cooler in summer, leading to potential energy savings.
Absolutely. Secondary glazing is a reversible installation that doesn't alter the external appearance of your windows, making it ideal for listed buildings and conservation areas where window replacement is restricted.
With proper care and maintenance, secondary glazing units can last for decades. Materials like acrylic or polycarbonate used in secondary glazing are durable and resistant to UV degradation, ensuring longevity.
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