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UPVC Window Cill and Trims

Discover our premium UPVC window cills and trims designed to enhance both the look and durability of your windows. Available in multiple widths, lengths and finishes — including smooth, woodgrain and classic colours — our products deliver weather-resistant performance with minimal maintenance. Ideal for replacing old or damaged parts, or for new projects where style and strength matter. Each sill and trim is engineered to resist fading and tackle the elements, while giving your windows a refined, clean finish.

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Slate Grey Woodgrain uPVC Window Cill
£58.17 - £58.17
£58.17
£58.17 - £58.17
£58.17

Slate Grey Woodgrain uPVC Window Cill Left Face 225mm (6m Length)

In stock

Enhance your windows with the uPVC Window Cill, designed to provide durability and a clean finish. These pressure-laminated cills are resistant to ...

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£58.17 - £58.17
£58.17
£58.17 - £58.17
£58.17
White Ash Woodgrain uPVC Window Cill Both Faces Sizes
White Ash Woodgrain uPVC Window Cill Both Faces
£115.29 - £115.29
£115.29
£115.29 - £115.29
£115.29

White Ash Woodgrain uPVC Window Cill Both Faces 150mm (6m Length)

In stock

Enhance your windows with the uPVC Window Cill, designed to provide durability and a clean finish. Available in a variety of sizes, including 85mm,...

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£115.29 - £115.29
£115.29
£115.29 - £115.29
£115.29
White Ash Woodgrain uPVC Window Cill Both Faces Sizes
White Ash Woodgrain uPVC Window Cill Both Faces
£59.10 - £59.10
£59.10
£59.10 - £59.10
£59.10

White Ash Woodgrain uPVC Window Cill Both Faces 225mm (6m Length)

In stock

Enhance your windows with the uPVC Window Cill, designed to provide durability and a clean finish. Available in a variety of sizes, including 85mm,...

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£59.10 - £59.10
£59.10
£59.10 - £59.10
£59.10
External Window Cills and End Caps
White External Window Cill (6m length)
£58.22 - £58.22
£58.22
£58.22 - £58.22
£58.22

White External Window Cill 125mm (6m length)

In stock

Our white premium-quality cills, available in 85mm, 125mm, 150mm, 180mm and 225mm widths, are designed for durability and long-lasting performance...

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£58.22 - £58.22
£58.22
£58.22 - £58.22
£58.22
External Window Cills and End Caps
White External Window Cill (6m length)
£60.89 - £60.89
£60.89
£60.89 - £60.89
£60.89

White External Window Cill 150mm (6m length)

Our white premium-quality cills, available in 85mm, 125mm, 150mm, 180mm and 225mm widths, are designed for durability and long-lasting performance...

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£60.89 - £60.89
£60.89
£60.89 - £60.89
£60.89
External Window Cills and End Caps
White External Window Cill (6m length)
£93.06 - £93.06
£93.06
£93.06 - £93.06
£93.06

White External Window Cill 180mm (6m length)

In stock

Our white premium-quality cills, available in 85mm, 125mm, 150mm, 180mm and 225mm widths, are designed for durability and long-lasting performance...

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£93.06 - £93.06
£93.06
£93.06 - £93.06
£93.06
External Window Cills and End Caps
White External Window Cill (6m length)
£108.26 - £108.26
£108.26
£108.26 - £108.26
£108.26

White External Window Cill 225mm (6m length)

In stock

Our white premium-quality cills, available in 85mm, 125mm, 150mm, 180mm and 225mm widths, are designed for durability and long-lasting performance...

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£108.26 - £108.26
£108.26
£108.26 - £108.26
£108.26
External Window Cills and End Caps
White External Window Cill (6m length)
£86.39 - £86.39
£86.39
£86.39 - £86.39
£86.39

White External Window Cill 85mm (6m length)

Our white premium-quality cills, available in 85mm, 125mm, 150mm, 180mm and 225mm widths, are designed for durability and long-lasting performance...

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£86.39 - £86.39
£86.39
£86.39 - £86.39
£86.39
uPVC Window Cill 135° Joint Trim 150mm
£4.02 - £4.02
£4.02
£4.02 - £4.02
£4.02

White Smooth uPVC Window Cill 135° Joint Trim 150mm

In stock

Ensure a seamless and secure connection between window cills with our uPVC Window Cill Straight Joint Trim. Designed for use with our window cills...

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£4.02 - £4.02
£4.02
£4.02 - £4.02
£4.02
uPVC Window Cill 90° External Joint Trim 150mm
£4.13 - £4.13
£4.13
£4.13 - £4.13
£4.13

White Smooth uPVC Window Cill 90° External Joint Trim 150mm

In stock

Create a flawless connection between window cills with our uPVC Window Cill Joint Trim, designed for seamless and secure installations. Specifical...

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£4.13 - £4.13
£4.13
£4.13 - £4.13
£4.13
£4.13 - £4.13
£4.13
£4.13 - £4.13
£4.13

White Smooth uPVC Window Cill 90° Internal Joint Trim 150mm

In stock

Our White Smooth uPVC Window Cill 90° Internal Joint Trim (JTA90I64) is designed to securely and seamlessly join two window cills at internal corn...

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£4.13 - £4.13
£4.13
£4.13 - £4.13
£4.13
White Smooth uPVC Window Cill End Caps (Pack of 2) 150mm
£1.05 - £1.05
£1.05
£1.05 - £1.05
£1.05

White Smooth uPVC Window Cill End Caps (Pack of 2) 150mm

In stock

Designed to seamlessly match all of our window profiles, these high-quality uPVC window cills provide a sleek and durable finish to any installati...

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£1.05 - £1.05
£1.05
£1.05 - £1.05
£1.05
White Smooth uPVC Window Cill End Caps (Pack of 2)
£1.22 - £1.22
£1.22
£1.22 - £1.22
£1.22

White Smooth uPVC Window Cill End Caps (Pack of 2) 180mm

In stock

Designed to seamlessly match all of our window profiles, these high-quality uPVC window cills provide a sleek and durable finish to any installati...

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£1.22 - £1.22
£1.22
£1.22 - £1.22
£1.22
White Smooth uPVC Window Cill End Caps (Pack of 2)
£0.93 - £0.93
£0.93
£0.93 - £0.93
£0.93

White Smooth uPVC Window Cill End Caps (Pack of 2) 225mm

In stock

Designed to seamlessly match all of our window profiles, these high-quality uPVC window cills provide a sleek and durable finish to any installati...

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£0.93 - £0.93
£0.93
£0.93 - £0.93
£0.93
£0.89 - £0.89
£0.89
£0.89 - £0.89
£0.89

White Smooth uPVC Window Cill End Caps (Pack of 2) 85mm

In stock

Designed to seamlessly match all of our window profiles, these high-quality uPVC window cills provide a sleek and durable finish to any installati...

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£0.89 - £0.89
£0.89
£0.89 - £0.89
£0.89
uPVC Window Cill Straight Joint Trim
£3.68 - £3.68
£3.68
£3.68 - £3.68
£3.68

White Smooth uPVC Window Cill Straight Joint Trim 150mm

In stock

Enhance your window installations with our White Smooth uPVC Window Cill Straight Joint Trim, designed for durability, flexibility, and ease of us...

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£3.68 - £3.68
£3.68
£3.68 - £3.68
£3.68
£7.29 - £7.29
£7.29
£7.29 - £7.29
£7.29

White uPVC Window Board Long End Caps 37mm (300mm Length)

In stock

Our White uPVC Window Board Long End Caps provide a neat and attractive finish for the ends of window boards, whether square or bullnose. Made fro...

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£7.29 - £7.29
£7.29
£7.29 - £7.29
£7.29
£0.70 - £0.70
£0.70
£0.70 - £0.70
£0.70

White uPVC Window Cill End Caps 125mm (Pack of 2)

In stock

Our White Smooth uPVC Window Cill End Caps provide a neat, professional finish to the ends of window cills, protecting against moisture ingress an...

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£0.70 - £0.70
£0.70
£0.70 - £0.70
£0.70
cill repair
£63.79 - £161.10
£63.79 - £161.10
£63.79 - £161.10
£63.79

Window Cill Cover Repair Trim 170mm (3.7m Length - Pack of 5)

Our uPVC Window Cill Cover Trim provides a quick, cost-effective solution for revitalising old or damaged window boards without the need for full r...

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£63.79 - £161.10
£63.79 - £161.10
£63.79 - £161.10
£63.79

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