High Quality Supply Service

When you buy from Southgate Windows, you will receive fast turnover times. Our services are reliable, efficient, and we offer full customer support.

Secure Double Glazing

Double glazed windows, doors and roof lanterns from market-leading brands that are expertly built to last, secure, and protect your property.

Free Online Quotes

You can get free, no obligation online double glazing prices with Southgate Windows. Just visit our quoting engine and enter your specifications.

View Our Double Glazing Range


Check out our huge range of PVCu windows. Highest quality double glazing.


Selection of front, sliding and composite doors at competitive trade prices.


Aluminium windows, French, Patio and Bi-Fold doors. Contact us for a quote.

Roof Lanterns

We supply roof lanterns at the lowest trade prices. Contact us for a quote.

Conservatory Roofs

We supply quality PVCu conservatory roofs, get in touch for a free quote.

Tiled Roofs

Global solid roofs at competitive prices in Somerset & Bridgwater.

Supply Only Double Glazing

Southgate Windows are the leading supplier of windows and doors in Somerset. Based in Bridgwater we work throughout Somerset, Bristol, and Devon. Including Taunton, Yeovil, Glastonbury, Wells, Cheddar, Weston Super Mare, Bath, Exmouth, Weymouth, Shepton Mallet and Barnstaple.

Our parent company, Southgate Plastics Ltd, was established in 1978 as a supplier and installer of quality double glazing and other home improvement products. We have learned valuable lessons throughout the years and have worked hard to provide you with a reliable and trustworthy double glazing supply only service.

Now, as Southgate Windows, we concentrate our efforts on supplying uPVC and aluminium windows, doors, conservatory roofs, and roof lanterns for trade customers. Our extensive industry and product knowledge highlight us as truly professional supply-only experts.

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Market Leading Brands

Liniar uPVC Double Glazing

Origin Doors Somerset

Smart Aluminium Double Glazing, Somerset

PVCu Windows & Doors

We offer a range of PVCu windows and PVCu doors from Liniar. Our Liniar windows are available in a variety of styles such as tilt and turn and French casement windows. We also offer PVCu sliding sash windows.

Liniar PVCu is extremely resilient and durable, giving you peace of mind that yours or your customers’ replacement double glazing will last for years.

Fitted with ultra-secure Yale locks, our Liniar PVCu doors will refresh and enhance the security of any building instantly. Available in a wide range of colours, there is something for everyone.

Bi-Fold Doors

Southgate Windows and Doors proudly work alongside Origin, one of the most respected names in the UK’s aluminium industry.

We are offering installers in our catchment areas the chance to install the highest quality aluminium bi-folding doors.

Aluminium itself is an extremely robust element and a precious metal, ideal for home improvements. This lightweight material is ideal for your security conscious customers; our aluminium bi-fold doors come with reinforced multi-point locking systems. As a result, you can offer your customers a stunning product that offers a host of features.

Aluminium Products

We choose to supply aluminium double glazing from Smart because the profiles are slim and provide a modern appearance, but without compromising on strength or thermal efficiency.

Aluminium as a double glazing material is extremely low maintenance and will last for a long time. To keep them clean, just simply wipe them with a damp cloth.

Our supply only aluminium windows and doors are offered in a selection of powder coated RAL colours so you can customise them for any project – matching them to the internal and external decor of any property.

Double Glazing Brochures,Solidor,Global,Synseal,Liniar

Double Glazing Styles

Why Choose Southgate Windows for Double Glazing Somerset?


Southgate Windows is dedicated to supplying our range of windows, doors and roof lanterns in an exceptionally fast time. We will be able to provide you with estimated delivery dates to help you plan your work schedule – benefitting both yourself and your customers.


We have enjoyed over thirty-eight successful years within the home improvements, growing our company to become one the most trusted trade suppliers in Somerset. Having worked in both wholesale and trade, our installation experts can offer useful advice based on experience.

Online Quote

Southgate Windows offers free, no obligation online quotes to all of our customers. With the required measurements, you can price up your new double glazed windows, doors or conservatory roofs and you will receive your prices in an instant.


Southgate Windows enjoys close business relationships with industry leading suppliers. This places us in a truly unique position as we can offer the most competitive prices for double glazing, doors, conservatory roofs and roof lanterns in Somerset, Devon, Dorset and Wiltshire.

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