Discover Southern Windows

Who We Are

We are a well established and respected family business that started manufacturing uPVC and aluminium windows in London over 35 years ago. Nowadays, many, many projects later, we manufacture the latest in aluminium window and door systems and specialise in structural glazing solutions.

We’ve built up an enviable reputation as the premier architectural glazing and aluminium systems partner, installer and manufacturer.

Utilising years of experience with glass, we’re able to mix minimal aesthetics with innovative glass technology to create beautiful and functioning glass structures and deliver visionary architectural glazing systems.

Based in London and with manufacturing facilities in Watford we usually operate within the M25.
If you have a glazing projects in your mind get in touch with us, regardless of the location, and
☞ tell us more.

London’s Leading
Architectural Glazing Company

Talk with us about your project

Why Southern Windows

Over the years we have created some truly exceptional glazing for some incredible properties. Our skills and knowhow can help you figure out how to realise your dream vision.


Professionals with experience you can trust! Established in 1981 we’re taking great pride in developing innovative solutions and continuously improving our skills and service.


All manufacturing takes place in our Watford factory, so we can promptly deliver within the M25 area. Here we manufacture all our bespoke aluminium system and structural glazing units.


We manufacture, supply and install our products to have the full control over the quality, performance and lead times. We always pursue excellence to be able to deliver only the very best.


We pride ourselves in forming long lasting relationships with our clients. Check our installation map and imagine that over 90% of our jobs are as a result of direct recommendations.

Industry Leading Warranties

Benefit from our manufacturer's warranties and quality cover on all our profiles, workmanship and sealed glass units.

Extra peace of mind!

Our guarantees are covered by insurance, so in the unlikely event that we stop trading your window and door guarantees would remain valid.

Commitment to Sustainability

Our wooden windows are manufactured from certified and FSC® approved hardwood timber. Our aluminium systems are always subject to the fundamental principles of sustainable product development.

Sustainable Materials

We're working closely with PB Donoghue - experts in waste management and take our environmental responsibilities seriously.


Our guarantees are covered by insurance, so in the unlikely event that we stop trading your window and door guarantees would remain valid.


We use sustainable materials and responsibly sourced and FSC® certified timber. Our aluminium systems are subject to the fundamental principles of sustainable product development.


The aluminium systems, timber windows and architectural glazing we fit are expertly crafted in our factory and come with market leading guarantees. Whether it’s a new installation or window replacement service, we can provide energy efficient, secure and long lasting glazing solutions.

Our 10 000 ft2 factory is located in Watford, within a close proximity to our London location. That way we can closely monitor manufacturing lead times and the quality of the final product to a greater benefit of our clients.

As the demand for more glass and less frames is now bigger than ever we have recently renovated our factory, to accommodate this growing trend and the needs of our visionary clients.


Southern Windows factory in Watford


Contemporary New Dwelling in Surrey

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Discover our Process

1. Quote

Fill in our online form and provide as many details as you can, attach your plans and images and we’ll take care of the rest.

2. Site Survey

If we’re to carry out the installation, a full site survey is required to ensure, that all aspects of the job run smoothly, and you’re getting a perfect, finished product to your maximum satisfaction.

3. Manufacture

Once we have the exact dimensions and all the details confirmed your order goes to production. All our products are manufactured in-house to ensure that each and every one of our products meets our high quality checks before it leaves the factory

4. Installations

We provide a complete installation and after-care service on all our products and only use our own, in-house, highly experienced, professionally trained, and FENSA certified installation engineers.