WIS Trade Windows


Trade suppliers of uPVC and Aluminium Windows & Doors in Milton Keynes

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Fast Prices

Our dedicated quoting team will always back to you within 24 hours
Fitter Friendly Delivery

We make your life easier by labelling each piece of glass clearly. You can immediately match up each piece of glass to each individual frame.

Our Show Room Package

We can provide you with sample products. If you are local to us, we are happy that you can bring or send your customers to view your products in our showroom. We will never discuss prices or mention our own services.

If you have the space at your premises, we can provide you with a purpose-built showroom for your customers. This will be at no cost to you. (We provide our purpose-built showroom following an initial successful trial period)

Tour Our Showroom Online

Business Support

To help you generate more business we can support you with our marketing experience and advice. We can also provide you with high quality sales and marketing materials.

Our team

We set up Double Glazing Trade because we knew that we could provide quality products and a unique service package at realistic prices. Our three directors are steeped in the window installation industry. We completely understand the trade customer and can help with every aspect of your business.

Karl Hurst

Karl began as window installer before setting up his window manufacturing business. He then moved on to his supply and installation company Window Installation Services which is now one of the leading companies in Buckinghamshire. His success has been built on knowing the business thoroughly and unmatched levels of customer service.

Dave Dickens

Dave began in the trade working alongside Karl as a fitter and then set up the manufacturing business with Karl. He now runs the operations side of Karl’s successful WIS Company. He knows the business inside out.

Alan Gardner

Alan is an experienced industry professional. After starting as a window installer himself, he specialised in surveying taking senior roles in major UK brands before joining Karl to manage the WIS business. There is no rule, regulation or technical area that Alan doesn’t know. He can advise on any area of your business.

Double Glazing Trade Suppliers

At Window Installation Services Trade, we supply quality UPVC and aluminium double glazing for trade. Based in Milton Keynes, our established local company has over 20 years experience working in the industry.

Always putting the customer first, we have built an excellent reputation with fellow double glazers and craftsmen. We always deliver a personable, reliable and cost-effective service.

Supply Only Double Glazing

Our versatile range of products means we can cater for all your double glazing needs. We have helped many customers over the years and have always been able to meet their request.

With today’s home owner favouring efficient and stylish products, we make certain that all our products are manufactured to the highest of specifications.

Quality Trade Products

All our double glazing products give a high thermal and acoustic performance, as well as providing exceptional security. Our unsurpassed range of Liniar products offer UPVC systems suitable for any type of property or project.

You can only expect the best from Window Installation Services. Our experienced staff will ensure that you receive an excellent service from order straight through to delivery.

We pride our business on being at the forefront of the market. Our trade company provides the latest products at very competitive prices.

Whether you are looking for great prices, energy efficient products or designs to set your business apart, Window Installation Services has the perfect UPVC profiles for you.

We are confident we can meet the needs of all trade customers.

Trade Double Glazing Prices

We offer trade double glazing online. Our online service provides instant double glazing quotes for your supply only double glazing. Simple to use, our online calculator allows you to browse through a wide range of premium quality products and get unique costs within minutes.


Contact Us

For all your trade double glazing needs, contact us today on: 01908 921199. Alternatively, you can use our online contact form.