North Wales premier uPVC windows, doors and conservatories. FSG building plastics supplier

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Double Glazing Casement Windows - Tilt & Turn Windows - Residential Double Glazing - Patio & French Doors

A superb range of upvc double glazed widows to suit any property.

Double-glazed and draught-proofed windows for ultimate warmth (and quiet) . Welcome to FSG double glazing company. Our uPVC windows are double-glazed and draught-proofed uPVC windows for warmth and energy efficiency.

  • Highly attractive modern or traditional style windows
    All uPVC windows tailor-made to virtually any size and need little or no maintenance


  • Give your home a better look with FSG windows made and fitted to our exacting standards.


  • FSG double-glazed window units keep your home wonderfully warm and draught-free.

    Highly attractive modern or traditional style windows.


  • All windows tailor-made to virtually any size


  • uPVC windows need little or no maintenance


  • Give your home a better look with FSG windows, made and fitted to our exacting standards.


  • Warmly insulated in so many ways


  • FSG double-glazed and draught-proofed window units keep your home wonderfully warm and draught-free.

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View pictures in the double glazing windows gallery.
Multi chambered double glazing windows for enegy efficiency

Our uPVC windows never flake, rot, peel or rust. They never need painting, and wipe clean quickly and easily.

Every window we make is tailor-made for your home to virtually any width and height you needs
Company news

Double Glazed Windows From FSG Sales & Marketing Ring 01745 345216

"We are one of the leading Replacement Window, Door and Conservatory home improvement company in North Wales"

A 20-millimetre air gap between panes of glass in our uPVC double glazed windows keeps more warmth in, and more noise out. Our window frames are multi-chambered to conserve even more heat.

Ideal for renovation and refurbishment work. Ideal for the new build sector.
Our full suite of window profiles with an attractive edge.
Traditional looks with the benefit of a modern PVCu double glazing system system. Cavity Closer For quick and easy fitting.
If you are looking for a reliable home improvement company contact us for a FREE quotation.
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