What we do

uPVC Windows and Products

We supply trade customers direct with windows and related uPVC products. We offer an inhouse nationwide delivery service.

Colour Coating

We offer the very highest standard of uPVC colour coating that is backed with a full 10 year guarantee against adherance and stability.

Glass Splashbacks

We now supply practical and hygienic glass splashbacks to compliment any contemporary setting. Cut to any size.

Trade Counter

We stock a wide range of uPVC products on our trade counter which is open six days a week at our Dewsbury factory. Call in today!
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Proven durbility and guaranteed for 10 years


On-going contracts


Satisfied Customers


Project Completed

Our Testimonials

Why Choose us

The UK's leading specialist provider of uPVC

Kolorseal is the UK's leading specialist provider of uPVC, Glass & Metal Colour Coating. Primarily servicing the Fenestration Industry. With over 20 years' experience we pride ourselves on the quality of our service which is backed with a 100% 'no quibble' guarantee of satisfaction. Our clients tell us that we are simply the best at what we do and offer the finest quality production with total reliability, delivered on time, every time.

Our Purpose

We exist to provide all our clients with an unrivalled and repeatable, high quality service. We aim to be a vital and trusted supplier to your business.

Superior Coloured Windows

The Kolorseal brand is synonymous with quality and represents on-going research into the application of resilient colour coatings that can be applied to u-PVC products, back this with years of experience, hundreds of satisfied customers and a team that strive to go that extra mile to ensure that our trade customers are happiest in the industry.

Trade Supplies

Kolorseal maintain a large inventory of stock to ensure that trade customers have everything that they need to complete the job. The products that we sell work as they are based on our own experience of the industry and the feedback that we have had from many years of supplying to the trade. Why not visit us today? Set up an account and start benefiting from the support that Kolorseal can bring to your business.