About us

As a homeowner you need to be sure you are choosing the right replacement window company, one that will provide quality products, great service and value for money.

SCI has been doing this for over 30 years.

With around 10,000 satisfied replacement window and door customers, SCI has thrived on quality, innovation and customer care. Our customers appreciate the no pressure, no hassle approach and commitment to service – long after the installation has been completed.


SCI has its roots in the 1970’s and has been at its current Morden window and door showroom since 1981. The original family business ethos has been maintained throughout the company’s lifetime, and following the retirement of the original owners many years ago, the current management has remained true to that traditional way of operating.

SCI has always relied on word of mouth and recommendation rather than advertising.

Deal with Experts

Composite Doors Suppliers & Installers in Surrey & South LondonSCI’s experienced staff deal with every aspect of the process, from the initial meeting with one of our professional consultants, onwards to our qualified surveyors, installers and after sales service engineers.

Most of our customers recommend us to their friends. We would be happy to provide recent testimonials on request. You can also look at some examples of our completed installations on our gallery page.

Why choose any old window and door company, when you can choose SCI instead, independent installers of bespoke windows, doors since the 1970’s.


SCI supplies and fits top quality products, sourced from the leading names in the field, such as: Liniar, Rehau, Aluk Beaufort and Pilkington Glass.

We believe that by using the best window and door systems on the market that our customers will enjoy better value for money and longer lasting, more secure, better performing and easier to live with windows and doors.

We offer:

  • A huge range of replacement windows and doors in various styles
  • A 10 year guarantee, insured by the Independent Warranty Association (IWA)
  • Free consultation, site survey and design
  • Impartial, friendly and expert advice
  • Specialist teams of window and door installers who are ‘house trained’!
  • No obligation quotations and no hard sell
  • “A” rated energy efficient energy saving window systems
  • Members of the Energy Saving Trust, Fensa & the Independent Warranty Association (IWA) Insurance scheme
  • Supplier of Pilkington energiKare™ products including Pilkington Activ™

Get in touch

Ask to see one of our experienced team. We promise we will just find out what you want, give you our advice and either quote for your requirements there and then or post / email it to you in the next few days and then leave you in peace! There is no better way to find the right products for you and your home, than from Surrey’s friendliest window and door company.

Call us on 020 8648 0426 or email us at sales@sciwindows.co.uk

Contact us to find out if we cover your area and be sure to get directions to our showroom in Morden. We’ll be delighted to help.

This is the second time I have used SCI Products Ltd and again I am very pleased with everything about the workmanship and the way in which the work was carried out.
Customer in Morden, 20 September 2013
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