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How Poorly Insulated Windows Could Affect A Home

Annie Everill

Annie Everill

Windows make up approximately 25% of the average wall space. So it stands to reason that if your windows are not performing as they should be then it can soon impact your entire property. 

Specifically, if windows are poorly insulated then this can have huge knock-on effects. There may be many reasons why windows are poorly insulated. Sometimes it can be due to the age of the frames, for example, wooden window frames do disintegrate over time, or the window glass may be single glazing. Alternatively, you may even be dealing with a seal failure or a lack of a thermal break within the window itself. 

Whatever the reason behind the dismal performance of your windows, it’s essential that you remedy the situation as soon as possible. Here are just some of the top reasons how poorly insulated windows could affect a home to shed light on this issue. 

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How do aluminium windows improve home insulation?

Aluminium is a naturally insulating material which keeps the warmth in through all seasons, keeping occupants warm but also a building more energy efficient. Through retaining heat, installing aluminium windows means there is less need for central heating resulting in lower energy bills and a lower carbon footprint. Aluminium windows are mainly effective in regard to insulation due to their ability to reduce condensation, keep corrosion at bay and their long lifespan which reduces the need for repair or maintenance.

How windows can affect home insulation

Lack of comfort

If your windows are poorly performing you’ll soon know about it, especially during the winter months when rooms can become particularly chilly with a cold draught running through them. Whether you are trying to sit and enjoy your living room or even if you’re trying to sleep at night, rooms that are too cold can become extremely uncomfortable. 

However, the problem is that even if you do have the central heating or if you light a fire, if your windows are poorly performing then it’s not really going to make a difference because that heat is going to be escaping straight out of a window. Therefore, you will struggle to get on top of the issue and your property will remain uncomfortable to spend time in. 

If the air is particularly cold, it could even impact your health especially as the temperature can make conditions such as arthritis or even certain lung conditions worse. So poorly performing windows are definitely not something you can ignore if you want to maintain good health, let alone enjoyment of your property. 


If your windows are performing as they should be then the temperature inside of your home should be warmer than the outside. However, moisture in the air combined with a low air temperature can cause condensation to form on the inside of your windows. Aside from being an annoyance, condensation can actually lead to more serious issues such as mould.

Although poorly performing windows are not always the cause of condensation, they often do not help the matter especially if your windows do not do a good job of keeping your home warm by maintaining the level of heat. Or if your windows do not open, meaning you cannot maintain good ventilation throughout your home.

Ultimately it is unlikely that you will win the battle against condensation if your windows happen to be poorly performing. In fact, other measures you may take such as improving the insulation or adding an extractor fan to your kitchen or bathroom will not be as effective if your windows remain unfit for purpose.

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High Energy Bills

The simple fact is that if your windows are not retaining the heat very well, it is going to cost more to heat your home because that he quite literally is escaping out of the window. The more you need to keep running up your central heating or another heat source to keep warm the more expensive it’s going to be.

Given we are in a cost-of-living crisis, it couldn’t be more important to ensure that your windows are of high performance and that they contain the thermal break. If they are not energy-efficient, it is the equivalent of pouring money down the drain because every bit of heat that is in that room is going to be escaping out the window and you will struggle to maintain an ambient temperature in the room. All of which means your energy bills will also be even higher than they should be. 

Granted, upgrading your windows can be considered a financial investment. However, many homeowners enjoy a significant reduction in their energy bills as a result. Compared to the likes of solar panels or biomass boilers, aluminium windows will pay for themselves much quicker over time. 

Lower House Prices

When it comes to putting a value on the price of your home you might not give your windows and doors much thought. But if your windows are clearly showing signs of age or deterioration particularly if it’s very apparent that they are not doing a good job of insulating your home, then ultimately the new owners of the home will have to pay for new windows. All of which can devalue your home.

On the contrary, if you install beautiful new windows that immediately demonstrate high performance, particularly with regards to maintaining an ambient temperature in the room and overall energy efficiency, then this will definitely boost the value of your home. In the case of aluminium windows, as we manufacture and install here at ABS, these offer the highest potential for value increases of your property too, especially compared with uPVC or wooden windows

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How to improve home insulation

  • Draught-proof your home
  • Insulate pipework
  • Smart thermostat
  • Upgrade your curtains or blinds
  • Fill your space with furniture
  • Lay down some carpets

Aluminium Windows UK

Are your windows giving your rooms a nasty chill? Don’t put up with poorly performing windows any longer, when you install stunning aluminium windows with us here at ABS. Based in Nottingham, we operate across the UK designing, manufacturing and installing aluminium windows. 

If you would like any further help or guidance on aluminium windows or any of the other services we provide then we’re here to help. 

Please get in touch either by dropping us an email or giving us a call on 01623 721 172 for further help or information. 

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