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  • Beautiful colours and textures

    Designed to create a stunning diffused light, each Duette blind can give a subtle glow of colour to your conservatory windows.

  • Unique Honeycomb structure

    The honeycomb fabric traps air passing through, reducing heat in the summer and chill in the winter.

  • No visible wires

    Duette® EnergySmart have no visible cord holes, and wires are minimal - giving them a sleek and modern look.

  • Shapes & Angles

    Our unique duette blinds are fitted effortlessly into the most complex shapes and angles of your conservatory roof.

  • Hard to reach roof panels?

    Our Platinum Power remote control system mean that you can operate your blinds at the touch of a button.

  • Reduce your heating bills!

    The unique fabric technology can save up to 25% on heating bills. By reducing heat by up to 78% enjoy the sun without being hindered by the glare.

Energy Saving Conservatory Blinds

For ultimate temperature control of your conservatory, Thomas Sanderson’s Duette® EnergySmart blinds offer the ideal combination of true beauty and unique fabric technology to deliver the best insulating blinds available for the conservatory.

Duette® thermal conservatory blinds are similar in appearance to classic pleated blinds, but on closer inspection reveal some clever design features. Rather than just one layer of fabric, they provide a double-layered cellular  functional solution. As well as reducing heat they also contain high sound absorbing properties, making your conservatory a true haven for relaxation.

These thermal conservatory blinds have no visible cord holes, and the wiring is minimal - giving them a sleek and modern look. This means that as well looking stunning, your conservatory will become a room to use all year round – staying cool in the summer and warm in the winter.

We have an extension to the fabric range called Duette Silk. It has all the properties of the existing range but with a more luxurious feel. We have 12 new colours, including 5 Thomas Sanderson exclusives.

It is perfect for our Twin Shade model, combining a Pleated semi-transparent fabric for viewing through the daylight hours, then extending the Duette Silk in the evening or for when privacy is required.  

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Thomas Sanderson - a complete service
  • The UK’s leading thermal conservatory blind specialist
  • Free design consultation & no obligation quote
  • Free survey and installation
  • 5 year guarantee and aftercare
  • Flexible payment options

Why choose Duette® EnergySmart conservatory blinds

Perfect finish

As well as practical benefits the Duette® EnergySmart blinds are truly beautiful and offer some exquisite design features.


Including the blinds unique honey-comb structure which creates a stunning filtered light effect, and with a wide range of subtle and striking colours available you will be sure to find the perfect fabric to complement your interior.


Unlike other blinds, Duette® EnergySmart have no visible cord holes, and wires are minimal - giving them a sleek and modern look. As well as reducing heat, they are also highly sound absorbent, making your conservatory a true haven for relaxation.



Ultimate energy saving blinds

This unique honeycomb fabric technology traps air passing through the thermal blinds, making them extremely cost efficient.


This alone can save up to 12%* on your heating bill and have been proven to reduce heat intake by up to 78% so you can enjoy the sun without being hindered by the glare.


*Duette® blinds have been tested by Fraunhofer IBP in a comprehensive study. IBP reports ESB-004/2011 HOKI & S 10 349


Free Design Appointment

Thomas Sanderson provide a free, fully inclusive design and planning service.


We have an established design team of over 160 designers. They are located all across the country, so we are sure to have a designer that’s local to you. Plus we are happy to visit you at evenings and weekends – helping to provide a first-class service.

Our professional designers will take time to work with you to understand both your shading and styling requirements before taking you through all the options available.


  • Locally based Thomas Sanderson designers
  • Daytime, evening & weekend appointments
  • Free measuring service for every window
  • Free no obligation quotation
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Our unique partnerships
Proud to work exclusively in partnership with the UK's leading home improvements companies.