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Replacement Double Glazed Units - Double Glazed Glass - Sealed Units

Alongside our normal production at Barnsbury Joinery of Insulating Glass Units, we specialise in producing one off, made to measure, double glazed units as matching replacements for older installations, where one or more of the original units have suffered breakage or become fogged or misted up. We produce high quality double glazed units to the most stringent modern specifications, matched in appearance to your original glass units and with a full 10 year guarantee. Our replacement “glass only” service is suitable for all types and styles of double glazing including:

  • uPVC, Timber & Aluminium Framed Products 

  • Windows, Doors, Conservatories & Roofs

  • Double & Triple Glazed Units

We know from experience that, for many people, this is a one off task for which they do not have any previous experience. So, as well as making new unit/s for you, we are also happy to provide you with as complete a service of help and advice as you may require, including:

  • Telephone Assistance 

  • How to accurately measure the height, width and depth 

  • Advice on air or gas filling

  • Identifying glass types 

  • Removal and refitting of double glazed panels

Our full range of double glazing glass products, services, specifications and fitting instructions are detailed below.

However, if you know what you want, need a price, or would just like some friendly expert advice, please call us on 0207 1646305 or send us an email.

Our Services - Replacement Double Glazing Units:

  • Manufacture of single or multiple replacement double glazing units 

  • Delivery service recommended for large sealed units

  • Telephone assistance for deglazing, measuring, identification of glass type and air or gas filled

  • Site visits for measuring, identification of original unit type

  • Replacement installation recommended for doors and large window openers

Products & Options - Double Glazed Glass:

  • Double glazing units from 14mm thickness and upwards 

  • Triple glazed units 

  • For all types of windows, doors, conservatories and roofs

  • Shaped and arched units

  • Stepped units

  • Air filled

  • Argon filled

  • Krypton filled

Spacer Bars: 

  • Silver 

  • White

  • Black

  • Light Grey

  • Dark Grey

  • Gold 

  • Bronze 

  • Brown



  • Clearfloat 

  • Low E Coated 

  • Acoustic Noise Reduction 

  • Patterned Obscure

  • Toughen Safety 

  • Laminated Safety 

  • Solar Control 

  • Tinted - Grey or Bronze

To save time at Barnsbury Joinery we have implemented an online quote request system. Once we receive your request we will endeavour to contact you within 24 hours. If you require assistance or would like to discuss your requirements, please do not hesitate to contact us directly on 0207-1646305 and we will be happy to help you.


At Barnsbury Joinery Co we service all of London and Hertfordshire. Including Islington, Hackney, Hampstead, Primrose Hill, Camden, Stoke Newington, Clapham, Angel, Canonbury, De Beauvoir Town and Clerkenwell. Please call us now to find out if we work in your local area.

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