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Spoilt for Choice

We urge you to take your time, if you make a poor decision now, the odds are you will always notice it while you remain at your property. Worse still, it might cost you dearly should you feel the need to change the windows again!

In contrast, the best replacement sash windows will go unnoticed, blending seamlessly with the existing facade, being well balanced and correctly proportioned and harmonising with their surroundings.

It’s about so much more than just the material the window is made from!

Why Choose Masterframe?

Endless Possibilities

Masterframe sash windows come in a variety of styles, colours, furniture and more. At the end of the day, it’s your home, so ultimately it’s your choice! We simply pledge to provide you with the widest choice available and as much or as little advice so that you’re delighted with your final decision, whichever it may be.

Enhance Your Surroundings

If you love the look of real wood but want the performance of modern materials, then our windows have been meticulously designed with those exacting standards in mind.  They give a look of real sash windows with a grained wooden surface which is easy to keep clean and never requires painting.

We understand that deciding the right style and design of your windows will take time, but finding a solution that retains the special character of your home is well worth the effort. You’ve invested a substantial sum buying your own property so any improvements must enhance it, make you feel warm and secure inside it, and be long-lasting.

We’ve been making sash windows for more than 30 years, our experience and dedication to perfection has enabled us to make what we consider to be the best uPVC sash window on the market.

Recreating the Aesthetics of Traditional Timber Windows

Sash windows were first installed nearly 400 years ago, they were originally propped open with wedges or timber dowels until someone realised a better way to open them with rope, a bit like a drawbridge.

Glass has played an important part in the development of sash windows, being more expensive than gold when it was first used. The challenge has been to make larger panes, hence the small diamond-shaped lead lights leading to Georgian squares, and in turn on to larger Victorian sheet glass hung on chains because the weight had increased considerably.

Traditional Appearance

Our challenge today is to retain the traditional appearance of sash windows supplied centuries ago with today’s strict building regulations, the demands of conservation and planning authorities, and the natural desire for exceptional energy efficiency, enhanced security and ease of use.

You’ll be pleased to learn that we’ve found a way to satisfy these requirements with beautiful, authentic-looking windows you will be proud of.

People You Can Trust

You’re in good hands, we’ve specially selected installation partners across the UK who are very experienced in fitting sash windows. Those joining us with limited experience attend our survey and installation training before selling or installing our windows.
A number of our production team have been employed for more than 20 years and a few of our older hands have been associated with sash windows since the 1970s.

Up for Closer Inspection

If you wish to visit our production plant in Essex you are most welcome. We’ll be delighted to show you the window finishes and colours, give you a full tour of the plant and answer any questions you might have, helping you rest easy about the quality of your new windows.

If you’re not able to visit us you’ll be pleased to know that we voluntarily ask (and pay for) the British Board of Agreement, ISO and the Police (through ‘SBD’ their preferred standards scheme), to inspect our factory and check our standards and processes as independent external review bodies.

We are also members of the Glass and Glazing Federation again being bound by their regulations voluntarily so that you can feel confident in the knowledge that you can obtain independent arbitration should you be unhappy with any aspect of our work.

If, like us, you believe the sash window to be the finest design in history, you’ll appreciate the time we have invested to make certain our products are as authentic as possible. Combining the elegance of sash window design with modern manufacturing techniques creates replacement windows with character that fit your home perfectly.

Find your Local

Our MASTER INSTALLERS are a team of specially trained craftsmen, selected by us, to deliver a quality installation of your chosen Masterframe windows.

Download a Brochure

Select and download your choice of a brochure or get in touch to have one sent in the post.


Installed by Master Craftsmen

Our installers are fully trained and chosen for their skills in delivering a quality installation. If you would like to find out more about our Master Installers please click here.