GAP Ltd (General All-Purpose Plastics Ltd.) is a leading trade specialist supplying both the residential and commercial building markets with high-quality, low-maintenance UPVC building products.

As a vertically integrated company, GAP operates multiple manufacturing plants in Blackburn, Knowsley, and Aberdare, producing an extensive range of products. Their portfolio includes HomeLine building products such as fascias, soffits, cladding, and window trims, as well as HomeView bifolding doors, HomeFrame windows, and GRP composite doors.

GAP also manufactures Rockdoor—one of the most secure composite doors on the UK market. As the creators of the ‘Original Composite Door,’ Rockdoor has over 25 years of manufacturing experience and continues to set the industry standard in an ever-evolving market.

With a nationwide network of over 100 depots and a department dedicated solely to house builders - GAP Nationals. GAP ensures fast and reliable deliveries across the UK—from Inverness in the north to Southampton in the south. Their extensive stock range includes both standard and exclusive products, such as Agate Grey building materials, available for same-day and next-day delivery.

At GAP, customer service is paramount. Their dedicated team of professionals offers on-site visits, expert service engineers, and tailored support to help customers get the most from their experience.

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