When the weather turns frosty, your windows are one of your home's most vulnerable points for letting in the cold. Many of us already use window dressings such as lined curtains to retain warmth, but have you considered a thermal blind?


Thermal blinds range from specially constructed fabric that help retain warmth and block out cool air, to more affordable alternatives, which feature special coatings that help improve insulation. Here’s our pick of what’s available online:

Thermal Blinds

Custom Made to Measure Fabric Blackout Roller Blind by Caecus

Custom Made to Measure Fabric Blackout Roller Blind by Caecus

If you want a lot of choice when it comes to colours, go for Custom Made to Measure Fabric Blackout Roller Blind by Caecus. Easy-to-fit, these blinds come with all the fittings and mounts so all you need is a drill and you're all set when it comes to putting them up. We love that you can choose to either buy off-the-peg from a range of sizes and cut to fit with a pair of sharp scissors and saw, or supply specific sizes at the checkout. And once they installed, simply pull on the cord to open and close.

Shop now from Amazon, (start from £25.49)

DuoLight Top Down/Bottom Up Mosaic Warm Grey Thermal Blind

What's not to love about this made-to-measure, free-floating dual cord system, which means you can position the blinds exactly where you want them in your window - top, bottom or somewhere inbetween - to provide shade or privacy. Available in a range of colours, they come with a five year guarantee too.

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Shop now from Blinds2go

Bekeify Blackout Blind


The eminently practical, cut-out and stick on, Bekeify Blackout Blind can be used to insulate a room, thanks to the silver finish that reflects heat, keeping the room at a comfortable temperature, as well as block out light to create a dark sleeping environement. The cloth can be cut to fit any sized window, and it's easy to put up the blind with the Velcro strips that are provided. As it's attached with Velcro, you can remove whenever you want. You can even take it travelling, which is incredbily handy if you have small children or need complete darkness to get a good night's sleep.

Thermal Luxe Dimout Blue Mist Roller Blind


Check out the super-stylish Thermal Luxe Dimout range from Blinds2go, which is made using a delicate woven fabric and is available in a range of contemporary pastel and neutral shades. We love the electric version, which starts at £88.40 and is perfect for a high-tech home.

Shop now from Blinds2go, (from £30.45)

Duck Egg Blackout Moisture Resistant Roller Blind

White Blackout Moisture Resistant Roller Blind

Simple and inexpensive, this thermal, blackout blind is also moisture resistant. Available in a range of patterns, colours and sizes, it's a great choice to brighten up your bathroom. It's worth noting, the white colourway is only available online.

Shop moisture resistant blinds now from Dunelm

Maximalist Palm Made to Measure Roman Blind

Maximalist Bengal Made to Measure Roman Blind

Make a statement with this bold palm print from Dunelm's made-to-measure Maximalist Roman Blind collection, which features 12 striking designs and is exclusively available online. Choose either thermal or blackout lining and whether you want it to fit snugly inside a recess or on the outside.

Shop the Maximalist Roman Blind collection now from Dunelm, (from £100)

Double Roller Blind, Daylight and Blackout

Double Roller Blind, Daylight and Blackout

A smart design that features two layers - the front daylight blind which offers some privacy without blocking out all light, as well as a second blackout layer which not only ensures complete darkness, but provides thermal properties to help insulate your windows. Easy to fit, it comes with universal brackets and is available in five different sizes.

Shop the Anyday thermal blind collection now at John Lewis

Blackout Skylight Blinds

Blackout Skylight Blind

Available in a range of fabric and frame colours, as well as sizes, these skylight blinds feature a special coating that helps retain heat and keep out the cold. Compatible with Velux® Roof Windows, prices start from £60.

Shop Skylight blinds now from John Lewis, (from £60)

Thermal Blind FAQs:

Where to buy thermal blinds

Blinds2go: Specialists in window dressings, there’s lots of choice for made to measure blinds on this site. With prices starting from £13.45, there’s a selection of roller blinds for windows, as well as stylish blinds for BiFolds, which are made from Thermal Luxury Premium Insulation fabric. Offering free samples of fabrics, so you can be sure you’re happy with the colour and finish, simply measure your windows and enter the details online to get a quote. 
  • Shop the complete range of thermal blinds from Blinds2go
Dunelm: There's over 300 blinds that can be bought 'off the peg', or made to measure, all lined with special thermal material to keep the warmth in and the cool air out. Choose from Roller or Roman blinds made from plan or patterned fabrics, as well as cute styles to suit kids rooms.
  • Shop the complete range of thermal blinds from Dunelm
John Lewis: A range of contemporary and traditional made to measure and 'off the peg' blinds features a three-layer blackout coating, which adds extra insulation and provides thermal qualities.
  • Shop the complete range of thermal blinds from John Lewis
Amazon: As you would expect, there’s lots of choice on offer from Amazon, with a wide range of roller blinds available in an array of colours. While most are off the peg, there are some made to measure options, too, and there are also moisture-resistant fabrics on offer, which is essential for bathroom blinds.
  • Shop the complete range of thermal blinds from Amazon

How do thermal blinds work?

We spoke to Leah Aspinall, head of creative at Blinds 2go, to get an expert understanding of thermal blinds work and whether they could be the right option for your home.

'Specific thermal blinds can really make a difference to your home and help to reduce your energy bills,' she says.

Thermal blinds work by creating a heat reflective barrier at your window. These blinds have aluminium lined, honeycomb pockets that trap the air and work to create a thermal barrier between the window and your home, reducing heat loss by reflecting the heat back into the room.

Specific thermal blinds can really make a difference to your home and help to reduce your energy bills

During the colder months, when the heating is on, the barrier stops the cycle of warm air in the room hitting the cold glass, helping to reduce any heat loss. In the summer, it reflects the heat back at the glass and stops it from warming the air around the room, helping to keep it cooler.

They’re available in a beautiful array of colours too, making them just as pretty as they are practical.

How effective are thermal blinds?

Thermal blinds can be extremely effective depending on the type of window and how they are installed and used. The blind will need to be down to be the most effective, so there are no gaps around the edges that lets the warm air escape.

For maximum benefit, the best thing to do would be to mount the blind outside the recess with an overlap either the side of the window, so it will keep you home cosy.

Which type of thermal blind is most energy efficient?

Our Duoshade Pleated Blinds are the most energy efficient. The pockets in the honeycomb design of the fabric are lined inside, so you have the dual benefit of a thermal lining plus pockets of air: the combination of the two creates the most effective barrier to stop the flow of air between the room and the window. They’re blackout and water-resistant too, making them a practical option that works hard to assist in keeping your home warm.


Do thermal blinds stop condensation?

Thermal blinds do not stop condensation. Having a good airflow in the home and well-maintained seals on the windows is the only way to prevent condensation - find out more in our guide to preventing condensation.

Before you go...

Check out our features on how to save money on your energy billsreduce your energy consumption and find the best home heating systems. We also have advice about heat pumps: how do they work and are they right for your home? and have put together a guide about underfloor heating versus radiators: which is best?


Cinead McTernan
Cinead McternanSenior Digital Editor, YourHomeStyle.UK

Cinead McTernan started her career in interiors PR, working on events like London Design Week and New Designers, as well as with household brands, like Annie Sloan, Crucial Trading and GP & J Baker, she spent 15 years specialising in gardening, producing four books, writing for national newspapers and magazines, as well as working in TV, for shows like BBC Gardeners' World, the BBC's RHS Chelsea Flower Show coverage and Garden Rescue. Happily things have come full circle and she loves once again being surrounded by all things home and design.