Winter Window Insulation: Comparing Your Options

Winter Window Insulation: Comparing Your Options

Winter is a cosy season filled with hot chocolate, warm socks and snuggly blankets. But cold air sneaking in through the windows can disturb your warm and comfortable space. It’s like an uninvited guest that crashes your warm winter party. That’s where effective window insulation comes into play.

Read on for the benefits of winter window insulation and the options available to give you a warm home this winter.

What are the benefits of winter window insulation?

Temperature regulation

Your home will stay warm throughout winter, keeping things comfortable at Christmas and throughout the colder months.

Energy efficiency

Your heating system won’t have to work as hard, saving you money on your energy bills.

Prevent condensation

Better insulation can stop your windows from getting foggy and wet, which means no more water damage or mould.

Noise reduction

It can also make your home quieter, blocking out street noise, so you can relax in peace.

Increase property value

Your home’s value can go up because it’s better insulated and more energy efficient.

Environmental impact

It’s also good for our planet because your home uses less energy, reducing your carbon footprint.

Interior protection

Your furniture could last longer with more protection from the sun, depending on your choice of winter window insulation.

7 winter window insulation options

Although windows are great for letting in natural light and providing beautiful views of the world outside, they have a downside when it comes to insulation. Unlike solid walls, windows tend to allow heat to escape easily, especially during cold weather.

This can lead to energy inefficiency and higher heating costs, as your heating system works harder to compensate for the heat loss through your windows.

Fortunately, there are a variety of winter window insulation solutions to choose from, each having its own advantages and disadvantages. Read on for the options available to ensure your home remains warm throughout the chilly season.

1. Window film

Window film is a popular choice for those looking to enhance their home’s insulation without breaking the bank. It works like a protective barrier, ensuring the cosy warmth from inside doesn’t escape and the chilly winds remain outdoors. Application is easy – it’s like putting a sticker on your window but with the added bonus of staying warm.

However, while affordable and somewhat functional, there’s a bit of a downside. The film can sometimes dull the vibrancy of natural light streaming into your rooms and might not win any beauty contests in the home décor department. As you might expect, it’s not amongst the most effective option to insulate your windows.

2. Thermal curtains

Thermal curtains are a stylish and functional choice. They come in a variety of colours, patterns and fabrics, so you can match them with your décor while keeping the cold at bay. Thanks to their special insulating lining, they are a great tool for keeping the cold air outside. Effective in reducing draughts, they’re great at helping your rooms stay warm.

However, there are a couple of drawbacks. They can cost more than regular curtains, and you’ll need to keep them closed to get the benefits, which means you won’t be able to enjoy the outdoor views or natural light during chilly days. But for the cosiness and warmth they bring, many find these curtains to be worth it.  

3. Weatherstripping

Weatherstripping involves sealing the edges of your windows to block out cold air, similar to sealing an envelope. It’s a DIY favourite due to its simplicity and affordability. Just remember, it might require replacement after a few winters as it can wear down. But if you carry out this small maintenance task, you will significantly increase your home’s comfort and energy efficiency.  

4. Cellular shades

Cellular shades are made from a special fabric that traps air, helping keep your home warm. They look nice and let in natural light while insulating your space. They’re a bit pricey but worth it for the long-term benefits. The only catch is that installing them can be a bit tricky if you’re not too handy.

But if you’re confident with your DIY skills, cellular shades are a good investment. They make your home more comfortable and save energy in the long run – all while looking stylish and efficient.

5. Double or triple-glazed windows

If you’re looking for a long-term solution to keep your home warm, double or triple-glazed windows are a great choice. These windows have multiple layers of glass with insulating gas in between, acting like a strong barrier against cold air. They’re a bit like a fortress for keeping your home warm. It’s a one-time investment for a draught-free home, making those chilly days much more bearable.

The drawbacks of double glazing include a higher initial cost for both the windows and installation. The windows are heavier, potentially requiring structural changes. Repairs can also be complicated, and in some cases, the entire unit may need replacement.

6. Smart glass

If you’re looking to add a modern twist to your window insulation, smart glass windows are worth considering. These cutting-edge windows are equipped with a special coating that adapts to various conditions like electrical, thermal, or light exposure. This feature allows the glass to regulate the amount of light and heat that enters your space.

Smart glass windows are like custom weather control for your home. They keep you warm in winter and cool in summer. It’s a handy mix of tech and energy savings.

7. Secondary glazing

Last but certainly not least is secondary glazing for winter window insulation. This high-performance option can transform thermal insulation properties of existing widows with a robust, well-sealed and discreet unit added on the inside.

As well as keeping more heat in, you’ll benefit from less noise, less condensation and enhanced window security. Choose from DIY kits with all parts pre-assembled, or professional installation within 50 miles of Sheffield.

Ready to upgrade your windows? If you want to save on energy bills, increase your comfort and reduce your carbon footprint, use our online form for a fast quote or email us at [email protected].


Clearview secondary glazing - the solution to significantly improved acoustic and heat insulation to your property, making your home or offices more comfortable, secure, greener and cost efficient to run. Achieved without the disruption of replacement windows, and without damaging the character of your building.

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