About Cosiflor

Blocker logo


Cosiflor is just one of the product ranges designed by the German company Blocker.

Blocker - a company history

Founded in 1926 and established as a wholesale and international trading company in 1950. They have continually widened their extensive technical know-how in the field of sun protection over the last 40 years by developing their own unique products. Hunter Douglas, one of the largest blind manufacturing companies in the world, recently aquired Blocker giving them the financial backing and security to pursue their goal of producing the perfect blind.

Product History

As an innovator in the field of vertical blinds, they set up the Solaflor brand in 1974. This was followed by the textile pleated blind range named Cosiflor, the market leader in Europe. Newly developed is the innovative double roller blind Duoflor.

Company philosophy

As a system provider, Blocker develop and design products and collections for high-grade light and sun protection. They supply all the training, machines, tools and materials necessary for production, as well as the complete after sales service including a huge warehouse holding stocks of 350 fabrics with a volume upto 5000mtrs at any one time. All rails and components are held in stock to guarantee swift delivery to their manufacturing partners around the world.

In addition, they are constantly working on new developments, collections and designs, striving to keep their brands ahead of the competition, right at the top end of the marketplace. Blocker take pride in what they do and are always aiming for perfection. All of their fabrics have a light fastness of between 5 and 7 and are tested thoroughly inhouse, with their Perlex fabrics also undergoing rigorous testing from an independent German fabric institute. After moulds have been finished for a new component, the hardened plastic items are calibrated and tested in a simulation for a working life of between 5 and 10 years.

British Blind Company Tip:
An investment in Cosiflor blinds supplied by a Blocker manufacturing partner or recommended and trained retailer will give you great looking, technically superior blinds that will protect you, your family and your home for many trouble free years.


  • Thank you again for the beautiful conservatory roof blinds that you fitted to our swimming pool enclosure. They are absolutely perfect, and even better than I imagined they would be.

    Chelsea, London
  • Your blinds for conservatories are excellent expecially the Cosiflor blinds which are much easier to use and fit more neatly than the previous ones fitted by another company.

    Fetcham, Surrey
  • I am very pleased with my conservatory blinds. Your informed and honest approach is a breath of fresh air, especially as we had some unpleasant experiences with other companies.

    Ewell, Surrey
  • Your designer was very knowledgeable and professional, offering the right solution to our shading problems - our conservatory is more bearable to be in and the blinds look great!

    Ascot, Berkshire
  • Thanks for the work you have just completed. This is the second time I have used you, first for conservatory blinds and now for wood shutters, with excellent service both times.

    Westerham, Kent

Cosiflor Pleated Blind Features

  • Suit all conservatory styles:
  • Timber, PVC or Aluminium
  • Suit all conservatory types:
  • Edwardian, Victorian etc
  • Fit shaped doors or windows
  • Heat and glare protection
  • Manual or automated systems
  • Strong and simple to operate
  • Stylish colours and patterns
  • Matching roof & side blinds
  • Discreet when retracted
  • Fit neatly into window rebate