Injection moulders dedicated
to u-pvc window fabricator’s

With no compromise on quality!

Quality | Innovation | Value | All parts from stock
Next day delivery | Lean manufacturing to ISO 9001

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We Supply & help these companies and many more...


G-Pack Manufacturing Ltd are an expanding progressive manufacturer of quality injection moulded plastic parts for the U.K. glazing industry. 

We supply a range of precision made components including  70mm frame corner protector’s, clip fit bridge packers, coloured sill end caps, coloured face drain caps, locking wedge sets, run up (riser) blocks, flat packers and handle protection mesh.  We hold comprehensive stock of all parts, available for next day delivery throughout the United Kingdom.  We sell around 2 million parts each month.

We only manufacture for the U.K. glazing industry, primarily trade u-p.v.c. window fabricators. We have a wide range of quality products including our own design registered components, we sell direct, therefore guaranteeing  quality, service and value.

We are an ISO 9001(2015) registered company, thus ensuring  quality  manufacturing, stock control, order processing and delivery. We manufacture from a range of materials to ensure strength, durability and colour fastness.  With no compromise on quality we use 100% recycled plastic for a number of products.  Frame corner protector’s  are manufactured from recycled Local Authority wheelie bins, clip fit bridge packers are made from reprocessed polypropylene, helping underline your own companies environmental commitment, particularly with ISO 14001.

We manufacture all sill end caps from u.v. resistant  ASA material (Acrylonitrile styrene acrylate), we blend this material with specially formulated u.v. resistant masterbatch, to colour match to industry standards such as Anthracite, Grey, Chartwell Green etc.  ASA is the material of choice for companies moulding external conservatory roof parts such as cresting’s and finial’s due to the long term stability of this plastic.

Latest News

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Handle protection mesh range

We have added to our handle protection mesh range.  We now offer black window handle mesh on the roll and…