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Sunroom with pan tiles and anthracite grey aluminium bi-folds doors in fakenham norfolk

Over 25 Years of Experience

Be assured all work is carried out professionally and to a high standard.

Free, At Home

No pressure sales is very important to us. We never price on the day.

FENSA Registered Company

All replacement windows and doors meet the necessary regulations and are fully certificated.

Fully Accredited and Insured

All installations are covered by CPA insurance backed guarantees.

Your local family run home improvement specialists.


Supreme Windows Ltd is located in Walpole Highway just outside of Wisbech. Covering areas such as Kings Lynn, Spalding, Peterborough, Ely, Thetford, Swaffham, Fakenham, Hunstanton and more!

We pride ourselves on no pressure sales and have a large range of double glazing and triple glazing products on display at our showroom. Being a true family run business, we pride ourselves on a relaxed, but always professional approach.

Learn More About Us

Deceuninck 2800 white PVCu windows with duplex bars and stone cills fitted in kings lynn, norfolk

About Us

See how we have evolved over the past 20 years and learn about our no pressure sales process from start to finish.

Services and Products

Here's a list of services we offer across East Anglia on a daily basis. Please contact us if you can't find what your looking for.


Need some inspiration? Check out just a small snippet of the work we have carried out in your local area. 

Solidor Composite Doors

Design Your Solidor

Get creative and design your own doors using our Solidor Designer.

Why Choose Supreme Windows?


Whether you're not happy with the current performance and appearance of your windows, accomplishing your dream of a self-build or simply need more living space it's easy with Supreme Windows Ltd.

Upgrading to energy rated double glazing, altering windows into doorways, extending doorways with bi-folds or even adding entirely new rooms which are usable all year around are all projects we carry out on a daily basis. With all our fitters and tradesman employed by us permanently, we can assure you of their quality of work and that you won't have the worry of being let down at the last minute.

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