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Secondary glazing for listed building windows

Secondary glazing is a great way to improve thermal and acoustic insulation and is the perfect solution for installations in period properties and listed buildings.

Acoustic insulation

Adding an extra pane of glass to your window interior will significantly reduce noise transmission.

Thermal performance

Secondary glazing will also help to improve a property's energy efficiency capacity.

Subtle aesthetic

Since secondary glazing is installed on the inside of your windows, it won't impact the exterior appearance.

  • Performance
  • Alternatives
  • Videos
  • Performance

    Improve your home’s thermal performance by up to 70%

    At Droylsden Glass, we only sell products of the highest standard, so we have chosen to use Granada as our secondary glazing supplier. By installing secondary glazing, you can improve your home's thermal insulation, reducing heat loss by up to 70% and significantly reducing noise levels.

    Granada products have all been subject to meticulous testing procedures in line with BS EN ISO 10077-2. The table below gives an overview of the test results and shows how secondary glazing can drastically improve performance and U-values, saving you money on your heating bills.

    Product typeU-Value Primary WindowU-Value Primary + Secondary WindowU-Value Improvement
    Slimline Hinged Unit4.7 W/m²K1.4 W/m²K70%
    Horizontal Sliding Unit4.7 W/m²K1.5 W/m²K68%
    Vertical Sliding Unit4.7 W/m²K1.5 W/m²K68%

    U-values measure how effective your windows are as insulators - the lower the score, the better their thermal performance will be. Get in touch today for a free, no-obligation quote.

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    Alternatives

    triple glazing

    High performing double and triple glazing

    We’re well aware that secondary glazing might not be suitable for everyone’s requirements. But, we also install double glazing and triple glazing, which you might find are better suited to your needs. Take a look at our window buying guide for our expert advice on which glazing type is the best for your home.

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    Videos

    Watch our videos on YouTube

    Compare our windows

    We can fit secondary glazing to several different styles of window across the North West of the UK, including:

    leaded secondary glazed window

    Secondary glazing for all property types

    Secondary glazing involves adding a single glazed window to the inside of an existing window. Cheaper than purchasing replacement windows, this extra pane of glass also provides another layer of security for your home. However, that’s not the only benefit it has; secondary glazing also actively traps more heat in the home, leading to cosier interiors and the potential to decrease your energy bills. However, noise reduction is where secondary glazing really excels; fitting it to your home will prevent a huge amount of external noise from coming inside, letting you enjoy your home surroundings much more peacefully.

    As secondary glazing sits on the inside of the property's window frames and is classed as an easy access removable alteration, it’s often approved for use in conservation areas and others where planning restrictions are in place too, without impacting on building regulations. Available for fitting to a wide range of different styles and types of premises, it’s also an ideal solution for use on more contemporary North West homes.

    Get our Window Selection Guide!

    Need some help picking out your new windows? We’ve simplified the process in this handy guide that will help you narrow down your options and find the perfect windows for your home.

    window buying guide

    Your Buying Journey

    Showroom

    Visit our showroom to talk to the Droylsden Glass experts and gain inspiration for your home improvement plans.

    Design & Order

    We will design the perfect home improvements to suit your individual requirements, completing your order down to the specific details.

    Survey

    We will visit your home at a convenient time to complete a full site survey. This will ensure any necessary regulations are adhered to.

    Manufacture

    All of our double-glazing products are manufactured by highly skilled experts who use industry-leading techniques. This ensures the maximum product quality.

    Installation

    Our fully qualified installers will fit your new products in a turn-around time as short as possible, as we know how busy homeowners are.

    Aftercare

    All of our products come with a comprehensive guarantee. In the unlikely event of an issue, our service team will be able to assist you with our extensive aftercare services.

    Customer Reviews

    We have achieved and built our reputation from our independent customer reviews.

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    Our Showroom

    Improving homes in the North West of England

    We have been carrying out quality installations in Chester, Warrington, Wirral, Trafford, Bolton, Oldham, Manchester, Cheshire, Tameside & Stockport for over four decades. Trusted for Generations: Your Home Improvement Partner, Tried, Tested, and Trusted. View our products by visiting our showroom today.

    Where to find us

    • 42-56 Audenshaw Road
    • Audenshaw
    • Manchester
    • M34 5HJ

    For Sat Navs, use:

    • York Street, Audenshaw,
    • Manchester, M34 5HJ
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