Using our site means you agree to the use of cookies and similar technologies. Read about our policy and how to disable them here. Cookie information

Velvet, rose pink curtains over a dark roman blind in a modern living room

Top tips for insulating windows

How to prevent heat loss and save energy with innovative design

Tara Hall

by Tara Hall

Product Innovations Expert

Published: 20/11/2013

Updated: 30/09/2021

An enormous amount of energy is lost through poorly insulated windows, but you can improve this through your choice of window dressings. Help save the planet and reduce your energy costs at the same time; you’ll keep your home cosier and more comfortable too. 


Do blinds help to keep the heat in?

When blinds are measured and fitted properly they help insulate your home by trapping a layer of air between the blind fabric and the window.

All our Roman blinds are lined as standard, offering an additional layer of insulation when the blind is closed, but for maximum heat retention we recommend choosing Roman blinds with an interlining.

Having this extra layer of wadding included will increase the insulation properties of your blind by up to 50% compared to a standard lining.

Browse Roman blinds

How do Thermal blinds work?

There is a smart and innovative product in our Pleated blinds range. It’s called a Thermashade™ blind. It features two special layers of fabric which together form a honeycomb shape. This honeycomb pocket traps air and creates a barrier between your warm room and the cold window to keep the heat in. 

Thermashade™ Pleated blinds, also known as Thermal blinds, are suitable for all rooms in the house but are particularly effective in conservatories and garden rooms, which get very cold in the winter months. Heating these spaces is costly, but Thermashade™ blinds will help keep the heat in your living space for longer. They’re flexible too. Thermashade™ blinds can be fitted into Perfect Fit frames to give a neat, streamlined finish.  

You could also consider a Transition™ blind which is made of two different fabrics, giving you two blinds in one.

Explore Thermal blinds
Abigail Ahern - Interior Designer
In the cooler months it's time to cosy everything up. From the bed to the sofa, pile everything up with cushions and layers of throws - they change up the feel of a room so easily.
Abigail Ahern - Interior Designer
Edgy room with side table and accessories next to a Dark Grey Curtains in Garcia Phantom fabric

Do curtains helps keep the heat in?

Curtains also help to keep a room warmer. Like our Roman blinds, all of our curtains and lined as standard, but for added cosiness go a step further with a thermal lining. Products with a thermal lining have an additional sateen twill layer that not only reduces heat loss through your windows but gives your curtains a thicker, luxurious look too. 

For bedrooms where you want additional light control as well as warmth, you could think about teaming thermal curtains with blackout blinds. You'll notice the difference to the temperature in your home, allowing you to turn down the thermostat to save on energy consumption. 

View curtains
Velvet teal roman blind under white and green patterned curtains in a dark, modern dining room

How does layering blinds and curtains help insulate windows?

Another great way to manage heat loss and increase your eco credentials is to layer curtains over blinds.

For maximum heat retention, make sure your curtains are wider than the window and touch the floor as heat can still escape if the curtain drop is only to the window sill. Your blind should fit tightly in the window frame so it can trap the air between the fabric and the window.

With our in-home service your expert local advisor will take care of measuring and fitting for you, so you know you’re getting the very best from your window dressings.

Discover our collection
Abigail Ahern - Interior Designer
There is also nothing like a beautiful curtain or blind to snug up an interior – they add such visual warmth and create the cosiest vibe.
Abigail Ahern - Interior Designer
Green custom colour shutters in a home office

Do shutters help stop draughts?

Shutters are an excellent way to insulate windows and improve energy efficiency in your home. With a wooden barrier at your window, shutting them on cold evenings will keep chills out and the warmth in. In fact, it has been shown that when closed, shutters can reduce heat loss through a window by more than 50%. 

Shutters are flexible too, giving you the option to keep the frames closed and keep the draughts at bay, but still allowing light in by positioning the slats (louvres) to suit you. 

Improving your window dressings can make a big impact on your heating bills and your carbon emissions.  Help save money, help save the planet, it’s a win-win.

View shutters

You might also be interested in…