200+ Branches nationwide

You’re never far from our expert advice and huge range of 6000+ products, plus thousands more made-to-order.

50 years in the trade

For five decades, we’ve served fabricators, installers, and specifiers across the UK.

Leading the field in sustainability

Last year we recycled 3,000,000 window frames, showing our commitment to sustainable home improvement.

Unrivalled choice of Profile Systems 

We offer our fabricators the widest range of systems in the UK and the technical support to back it up.


UPVC Window Sills, Ledges, Trims & Accessories

Window sills, also referred to as internal window boards or window sills, play a vital role in providing structural support to the glazing and frames within your viewing area. 

Guaranteed performance, minimal maintenance, and 11 on-trend colours, including white ash and oak. When it comes to the finishing touches, our pressure-laminated UPVC window trims and sills are unmatched, achieving perfect alignment for windows and doors. And because they’re scratch-, heat-, and moisture-resistant, you’ll enjoy long-term peace of mind. Free delivery options available. 

A close up of Eurocells white window sillA close up of Eurocells white window sill

Shop our most popular window accessories

Window Trims Window Sills

UPVC window trims to match any home

Complement your property’s aesthetic appeal with our fast-fitting contemporary or traditional trims and window sills in the colour of your choice. We offer:

  • Window trims that keep things clean, fresh, tidy – and don’t require repainting. Choose from 85mm, 150mm and 180mm widths.
  • Window sills that withstand British weather with ease and perfectly match your windows. Each one can be wiped clean with a damp cloth. Matching end caps, joints and angle trims are available.

You can also shop our window boards here.

The perfect look to your window sill

Choose from 11 different colours to match your window trims across our full product range. Your windows and doors will be perfectly aligned! Whites are the same white and all woodgrain finishes are perfectly matched. That’s the Eurocell colour-match guarantee.

  • Blue White
  • Rosewood
  • Golden Oak
  • Cream
  • White Ash
  • Anthracite Grey
  • Irish Oak
  • Black Ash
  • Slate Grey
  • Chartwell Green
  • Anteak

Exceptional performance

With Eurocell UPVC window trims, there’s no need to worry about your property looking tired and dated. Years of British weather can soon make traditional painted wooden windows look less than pristine. The sunlight can cause discolouration. But with UPVC window trims, there are no such concerns.

You’ll never have to repaint or scrub your window sills. Just simply wipe clean with damp cloth and enjoy the view. And because each UPVC window sill is pressure laminated, they’re tough, hard-wearing, and scratch-, heat- and moisture-resistant.


Window Sills FAQs

At Eurocell, we’re always happy to help. Check these FAQs for answers to some of the most common questions about window trims. We’ve listened to your most popular queries and gathered some helpful links and information. If your question remains unanswered, contact us today and one of our experts will give you everything you need.

Frequently Asked Questions
Can I buy my Eurocell UPVC window sills online?
Yes. Shop online today and you can choose whether to collect from one of our nationwide branches or have your products delivered to your site. 
Do you sell UPVC sill repair covers?
Yes. If you’re looking for a damaged sill replacement, our UPVC sill repair covers are perfect for making a quick repair of an existing sill. Using a sill repair cover avoids the need to remove and replace the existing sill, saving valuable time and money in the process. Shop online today.
What size UPVC window sills can I buy?
Our sills come in three different options: 150mm A-type and end caps, 85mm A-type and end caps, and 180mm A-type and end caps.

News from Eurocell

Tips, advice, blogs, case studies, and announcements: get all the latest developments direct from Eurocell HQ. You won’t miss a thing!

View news >

Technical Hub

Check spec sheets, CAD drawings, data sheets, certifications, and more in our Technical Hub – so your next project goes without a hitch.

Visit technical hub >

Eurocell Recycle

Through two purpose-built recycling centres and millions of pounds of investment, we are the UK’s largest recycler of UPVC. Get all the details here.

See more >

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