Steel Frame Secondary Glazing


High performance, discrete, adding value and comfort while maintaining architectural integrity.

  • Slim-line
  • Cost effective.
  • Choices of glazing.
  • Virtually maintenance free.
  • Avaible in any RAL colour.
  • Matching trim for neater finish.

APG Secondary Glazing is installed in 1000s of properties all over the UK – private homes, commercial property, churches and many other public buildings, including some of the nation’s favourite heritage and listed buildings.

Because it provides significantly improved acoustic insulation and thermal efficiency and helps with condensation – making homes and buildings more comfortable, secure, eco-efficient and cost efficient. All without the disruption of replacement windows and redecoration, and without affecting the fabric of the building, making it ideal for retaining the charm and character of period property and for Grade I and II listed buildings.

APG secondary glazing is manufactured from high quality components; fully recyclable, from managed, sustainable sources. And, we promise never to over or under-engineer to promote unnecessary features, or cheapen the quality of our secondary glazing.

Each APG unit is custom-designed, and virtually every window type and shape is catered for across our wide product range. Our secondary glazing is unobtrusive, non-invasive, reversible and easily accessible for cleaning and ventilation.

For further information please Contact us today on 02871 357 444. -or-  E-mail us.

Our Showroom and Factory are Located at the Glass works, Skeoge industrial estate Derry City Northern Ireland, we have expanded and developed both our product ranges and glazing capabilities over the years and now offer our services to all areas of Ireland, the United kingdom and internationally.