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Professional manufacturing and delivery of trade aluminium windows

At Dekko, we supply high-quality aluminium windows to UK trade customers. When you want to increase your sales by offering your customers the best premium quality products, Dekko can help. We manufacture all our aluminium products at our Lancashire factory to enable us to oversee quality at every stage. We provide a prompt nationwide delivery service and strive to meet all delivery targets on time every time.


Our high quality Räum range of aluminium windows provide exceptional levels of thermal performance, and are weather-resistant and super secure. Slimline high performance Räum windows are suitable for a wide range of applications, from high-end commercial installations to modern residential developments and are available in a range of colour options. Aluminium is an extremely versatile material and can be formed into almost any shape imaginable, allowing us to create Räum windows in a huge range of designs. From bespoke portholes and oversized windows to bay and bow windows and flush casement windows, Räum windows provide truly unrivalled levels of design opportunity, thanks to ultra slim sightlines and modern aesthetics.

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Large round aluminium window in antracite grey
Technical advice


With years of industry experience, the experts at Dekko are perfectly placed to offer technical product advice. Whether you want installation support or advice on the best products for your specific requirements, we can help.

When you need extra hardware including PVCu and ancillary products, our three trade counters are well stocked with the highest quality products to provide a convenient service to trade installers.

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At Dekko, we are dedicated to supporting all our customers. We offer a nationwide delivery service and competitive lead times, and strive to always deliver on schedule. We offer all our trade customers extensive after sales and marketing support to help them to showcase their product range. The Dekko team has years of experience, and an in-depth knowledge of the glazing industry, encompassing product knowledge, manufacturing techniques, and sector trends. When you choose Dekko as your window and door supplier, you access a wealth of valuable information to help you to grow your business.

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Why Dekko
Product samples on display at the Dekko Trade Counter


At Dekko, we want to provide a convenient and hassle free supply service to all our trade customers. Our two UK trade counters stock our full range of PVCu and aluminium windows and doors and ancillary products to give installers quick access to any vital components they may need to complete an installation, matched with competitive trade prices. Our trade counter in Ashton serves installers across the North of England, while our Swindon trade counter supplies installers across the south of England including London and the home counties.

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Fast delivery and would highly recommend

"Ordered double glazed window for our shop. Dealt with Nathan on the Trade Counter, who was excellent and went above and beyond the usual customer service. Window was very well made and arrived with no problems. Fast delivery and would highly recommend."

Tony Spooner

The windows look fantastic

"Recently used Dekko Windows to supply the windows and aluminium bi-fold doors for our renovation project. We paid a short visit to their showroom where Rob and Neil were really helpful, showing us around and providing options for us. We were really happy with the whole process and the windows look fantastic. Would definitely recommend this company."

Richard Kennedy

Very happy with the level of service and products

"I've been using Dekko Windows for a number of years now and have been very happy with the level of service and products. Rob and Neil have never failed to get back to me promptly with quotes and lead times etc and Leon the delivery guy is always happy, friendly and helpful whenever unloading frames on site."

Peter Bain

Excellent service

"Excellent service. It's always a joy to deal with Rob, Neil and Leon. They always go out of their way to assist me with my projects and are very professional and friendly. Thanks again to the Swindon Dekko Team!"

Jordan King