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Modern UPVC Double Glazed Window Unit

Secondary double-glazing, for a property that’s insulated and secure

Reduce noise pollution and keep unwanted draughts at bay. Enhance your windows with secondary double-glazing from Somerville Glass and Windows Ltd.


A second level of protection for your property – how it works

Secondary double-glazing effectively means adding another window inside your existing units. The secondary window sits within its own frame, fixed to the existing window. Because it’s considered a non-permanent, removable addition, secondary double-glazing is perfect for listed buildings and in instances when an existing window cannot be removed due to conservation reasons. For this reason, secondary glazing is recommended by English Heritage for use in Historic buildings, peace of mind for these customers across Reading.


These systems are easy to install and cost-effective, mitigating the price and time associated with a complete overhaul. They’re also ideal for combating trouble spots, such as colder or noisier areas, in both new and older buildings. Save money on energy bills and promote your comfort indoors – get a quote for a system from Somerville Glass and Windows Ltd.

Secondary glazing in white units in home

The benefits of secondary double-glazing:

We always want to ensure our customers across Reading have the information they need to make informed decisions. That’s why we’ve put together a list of some of the main benefits of secondary double-glazing. For more information and answers to your questions, feel free to contact our team.

  • Far easier, more cost effective and more sympathetic than replacing all your existing windows

  • Can be applied just to one window or to all windows in a property

  • Preserves the external character of a property, without compromising on comfort

  • Slimline, discreet design preserves the interior appearance

  • Comes in your choice of hinged units, lift-out secondary units and horizontal sliders

  • Wide range of shapes and sizes available to suit any building and space

  • Offers extremely high levels of thermal efficiency.

  • Brilliant for soundproofing and cutting down external noise

  • Provides important additional security for single glazed windows

  • Dramatically improves insulation and energy efficiency levels, helping to save money on energy bill

Secondary glazing in home windows covered by green blinds

Always straightforward, well executed installations

Once you’ve decided to choose Somerville Glass and Windows Ltd and our range of systems, we’ll take care of the rest. At a time and date that’s convenient, we’ll conduct thorough checks of the proposed installation site, take measurements, and make note of additional information needed for a job well done!

To meet the needs of our customers across the area, we work to tight deadlines and promise quick turnarounds, whatever your project may entail. By employing an exceptional team of glaziers and glass experts, we can offer accurate timescales, quotes, and have the work completed in no time.

Elevate your units even further with secondary double-glazing.
0118 986 8866 for pricing
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