Manufacturing windows, doors and conservatories in the UK for over 50 years

Offsite Manufacturing


Sash UK Offsite Products


Process and efficiency is paramount

Fenestration is a key component of the offsite manufacturing supply chain. Sash UK understands the key requirements to compliment the performance and efficiency of an offsite manufacturer. At Sash UK we commit to providing you with the right product, at just the right time, and even in the right order to suit your production.

We can make this commitment because of our capacity to supply volume, short lead times on our windows and doors, our quality management system and commitment to operating to service level agreements.


Sash UK isn’t just a supplier. We bring proactive window and door knowledge and expertise to the partnership. We will contribute to optimising design and performance to compliment your structures designs whilst helping to minimise costs in the process.

All of the products Sash UK supply are manufactured to the highest quality, We do not rely on other companies accreditations. We invest heavily in our own, so you can have peace of mind that our products are manufactured in accordance with the relevant standards and accreditations consistently.

We produce the products you need, not the products we want to sell you.


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Case Studies



As one of the largest manufacturers of PVC-U windows and doors, our products are manufactured in accordance with the necessary standards and accreditations.