Masterframe Trade Logo

With over 30 years of manufacturing PVC-U sash windows, our directors have worked on the boards of the GGF, FENSA and BFRC, but quite possibly, you may never have heard of Masterframe Windows Ltd. You may be considering changing supplier or you may be completely new to PVC-U sash windows.

While our name may be unfamiliar, our accreditations will assure you of our high standards.

British Board of Agrément

Built To Last And Tested To Prove It

The (BBA) is the UK’s major authority offering approval and certification services to manufacturers and installers alike.


ISO 9001:2015

Consistant Production Standards For Every Window

BBA certification tests confirm the products tested are durable, however companies must guarantee consistency of production and that they use the same products that satisfied the BBA testing.


Secured by Design

When Security Matters

The Association of Chief Police Officers (ACPO) set up Secured by Design (SBD) to encourage the building industry to adopt crime prevention measures in housing.



A Rated as Standard

BFRC is the British Fenestration Ratings Council and they decide how to interpret energy efficiency calculations for the whole of the UK. All our windows are A rated as standard, but we can offer C rated which is still the industry standard requirement.


Energy Savings Trust

Only the Best is Good Enough

The Energy Savings Trust can only recommend the highest performing companies so only the best products that get to be Energy Savings Trust recommended.


The Glass and Glazing Federation

Setting standards, safeguarding interests

Masterframe have been GGF members since the mid 90s. Our MD has served on the GGF main board and chaired the Home Improvement Executive, FENSA and the BFRC. Membership gives you greater protection on a number of levels.


CE Marking As Standard

All Our Sash Windows Are CE Compliant

CE marking indicates that a product is compliant to EU laws so that it can be traded anywhere within the EU.


VEKA Approved Fabricator

Coveted Approved Status

As an Approved Fabricator you can be assured that we supply the highest quality windows manufactured from Halo profile – a brand of the market leading VEKA UK Group.


Made in the UK

Made in the UK

We have always selected UK suppliers for our parts, components and machinery, however, following the referendum decision to leave the EU it is even more important that we continue this stance.

Our sash windows are manufactured at our factory in Essex.


Contact Us

We will get back to you as soon as posible on any queries you may have. Please fill out the form and we will give you a call.