About Us

Who are OpenSquare Glazing?

OpenSquare Glazing are aluminium window, door and roof lantern specialists based in Chalfont St Giles, Buckinghamshire. We specialise in the new build property market, working with architects, developers and other contractors to install the products we supply.

Many of our team have been in the home improvement industry all their working lives. As a result, our years of operations as a company is actually complimented by decades of collective experience. We can be relied upon for your new build project.

We offer an outstanding and highly recommended customer service, which has seen us establish long term relationships with clients in London and the home counties. You can discover the benefits of choosing OpenSquare Glazing by requesting a free online quote.

Our Product Range

Here at OpenSquare Glazing, we offer a full suite of aluminium windows and doors to our clients. We work with a range of supply chains, cherry picking the absolute best systems on the market. We can supply and install the following:

Our Sister Company

While we specialise in installing aluminium windows and doors as part of new build developments, we can cater to replacement work as well. We have a sister company, Vogue Windows & Doors, which are experts in replacing existing windows with new uPVC systems. You can contact them today.

Areas we Cover

We are based in Chalfont St Giles, in the county of Buckinghamshire. As a result, we complete a lot of local projects in Amersham, Beaconsfield and similar areas. However, a large amount of the work we undertake is in London and within the M25 circular, as well as the surrounding home counties.

With our coverage area not being specifically defined, we welcome any and all new build developers in the region to contact us. We can let you know whether we can accommodate your need for our aluminium windows and doors.

Start an Online Quote

As a prospective client, you can use our online pricing tool to request a quote for aluminium windows and doors. We’ll then get in touch to discuss your new build project further and to provide costs. If you have any questions, you can contact us.

Our Reviews

Take a look through some of our most recent reviews here. We have happy customers locally near Chalfont St Giles, Buckinghamshire, as well down into London and throughout the home counties.


I found Mark to be incredibly professional and knowledgeable. I was struggling with the intricacies of various roof lantern options and Mark was able to guide me through the process and then install and complete the job in great time with the minimum of fuss and for a very competitive rate.

Alix Fiske

I was very lucky to find Mark. He is exceptionally reliable and trustworthy and has years of valuable experience. He’s not just a salesman, he understands what’s the right product for each customer and truly wants them to be happy.

Victoria Watson - London - 21/02/21

Mark and his team installed aluminium bi-folding doors, windows and a roof lantern. Not only were they professional from the start, their lead time and prices were fantastic! Can’t recommend OpenSquare Glazing enough.

Nicola Knowlson - Southampton - 03/11/20

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