How To Prevent Condensation in Double Glazing

condensation in double glazing

Condensation can be a severe problem in double glazing. Over time, your windows can begin to weaken, grow more fragile, and lose their performance. Some windows are more exposed to condensation than others, too.

For example, if you have older windows with wooden frames or only single-glazed glass, then the design can mist up frequently. As a result, the glass begins to become more prone to cracking, and the mist can start blocking natural light from entering your living space.

However, there are some ways you can help to prevent condensation in double glazing. Not only that, but many of them are nifty hacks that you can do with what you already have in your home. Alternatively, replacing window parts, such as the glazing, can also make a difference in the performance of the design.

Finally, if you have old windows that are weakening, you could invest in brand-new, efficient and durable designs for your home, and save the cost of repairing and maintenance.

By preventing condensation, you can make your old windows last longer. Not only that, but you’ll get more performance out of the design for several years more. You could also invest in a new window with leading energy efficiency, and quality insulation that helps you stay warm inside your home.

As a result, you could find that you end up saving money on your energy bills, no matter how you prevent condensation in your double glazing. That way, you’ll enhance your home and improve your lifestyle. This makes the price of double glazing an excellent long term investment.

Double Glazing Condensation

The Problems with Condensation in Double Glazing

Condensation in double glazing can come about by several causes. The most common, however, is that the sealant around the window has failed. While single glazing suffers from this problem often, double glazing can as well.

Condensation occurs when there is a difference in the temperature inside and outside of your home. When there is, and there isn’t a lot of protection between them, the windows mist up. And, if you leave it untreated, the condensation can spread through your windows into your walls.

Condensation in double glazing can lead to quite serious problems. For a start, the mist can weaken the glazing, making it more likely that an intruder could target and break through your window. Not only that, but natural light won’t be able to enter your home as quickly, making it colder and less comfortable.

And, over time, rot can begin to emerge throughout the window. Wet rot and dry rot can cause significant damage to your home, and even lead to health issues.

Black mould can also come about as a result of condensation in double glazing. The issues this can cause are almost debilitating. Over time, spores can emerge from the black mould and absorb into your home’s atmosphere.

These little particles can enter your lungs as you breathe, making them incredibly harmful. Because of this, preventing condensation in double glazing is critical. Fortunately, there are plenty of ways you can take back control of condensation.

Ways To Prevent Condensation in Double Glazing

Preventing condensation in double glazing is more straightforward than you think. One method of dealing with it is targeting condensation in the inside pane of your window. Something like this can happen because of poor air circulation, or high humidity.

To solve it, you can use an extractor fan (if you have one), open a window in the house to improve the airflow, or even target the build-up using a hairdryer. By preventing this, your home will feel fresher, brighter, and more comfortable.

Another place condensation can take hold of is the outside of your window. While this doesn’t happen as often, it can cause issues with letting natural light into your home. Surprisingly, the reason mist can build on the outside of your window is usually because your window is performing well!

But, when the air outside is warmer than inside, condensation can occur because the dew point of the air is hotter. To prevent this, you can open a window to cool it down and minimise the temperature difference, helping the mist go down.

The final place – and perhaps the most harmful – that condensation can build up in double glazing is in between the glass panels. On an older window or one with poor-quality materials, the sealant can fail inside the panes, leading to condensation developing more quickly. Not only that, but the bead inside them can deteriorate as well.

At that point, unfortunately, there’s no quick fix. One way is to repair the failing parts of the window. However, the other method might lead to you transforming how your home looks and feels.

condensation in double glazing prices

Prevent Condensation with New Double Glazing

While repairing your window may seem like the obvious option, it might not be the best choice in the long run. That’s because repairs, inevitably, become a vicious cycle. Once you repair the window once, you end up waiting for it to happen again and again, until you finally have to replace it.

However, you don’t have to wait. Instead of putting up with a failing window, you can invest in a brand-new window with advanced double glazing, a durable and slimline uPVC or aluminium frame, and a unique, fully customisable design!

With a brand-new window, you can transform your living space inside and out. Not only do modern designs have a sleek look that blends in seamlessly with your home, but they can help you feel better inside it as well.

Thanks to the advanced materials in your window, the whole design works to insulate your home against cold weather. As a result, you can stay warmer inside, and you won’t have to rely on your central heating. Because of this, you’ll prevent condensation and save money in spades with new double glazing!

Also, you’ll have full control of the design of your window, as well as condensation. Modern windows come in a variety of unique and elegant styles, ideal for any home. You could choose a casement window, an innovative tilt and turn design, a timeless sliding sash window or even bow and bay windows to add space and light to your home.

Not only that, but you can customise the design with unique glazing, coloured frames, authentic foiled finishes or even durable and detailed handles.

The Benefits of Preventing Condensation in Double Glazing

By preventing condensation with new double glazing, you’ll create a warmer living space. There’ll be no mist to get in the way of natural light and warmth flooding your living space. Also, thanks to their slimline frames, your new windows will brighten your home like never before.

As a result, you can stay warm and comfortable, while a multi-chambered uPVC or aluminium profile and a broad opening help you ventilate your home too. You’ll be able to cut the cost of your energy bills and pay back your investment over time.

Not only that, but your new windows will last longer too. The design of these modern models is incredibly durable. Because of this, robust materials will hold together for decades.

Your next windows will be fully weatherproof too, which means the frame won’t warp, rot or twist, and it’ll protect the internal parts of your window from the same issues. That means the sealant and bead inside your double glazing will have protection from the elements, decreasing the chance of failure, and stopping condensation in its tracks.

Your windows could perform for 30 years, or even longer. And that’s only with a uPVC frame – if you prefer to invest more, you could get new double glazing with aluminium frames that perform for half a century.

With both of these materials, you’ll decrease the amount of work you have to do to keep them looking their best, as well. The colour of the frames won’t fade, the windows won’t weaken, and you won’t have to deal with any condensation in your new double glazing either.

condensation in double glazing

Prevent Condensation in Double Glazing For Less

If you want to invest in brand-new windows, and prevent condensation in your double glazing, contact Double Glazing On The Web! We offer leading designs from local companies, so you can get stunning windows while saving money.

With us, you can get in touch with our extensive network of local installers and suppliers. They’ll be more likely to offer a lower price for high-quality design, and they won’t charge you as much in travel costs either. Many of these companies are Checkatrade members and Which? Trusted Traders as well.

Not only that, but you can speak to several of them when you get a referral from us. Because of this, you can negotiate the prices lower and lower, so you get the deal of your dreams on new double glazing.

All you have to do is use our online quote builder to select each part of your brand-new window. You can compare prices with other designs too, so you know you get the model that suits your budget as well as your style. No matter the configuration you come up with, we’ll give you an instant online quote within minutes.

For more information, give our friendly team a call on 0800 015 5679 or fill in our online contact form today!


Preventing condensation in double glazing is vital for retaining the overall performance, sturdiness, and aesthetics of your home windows. While there are several brief fixes to address condensation troubles, along with the use of extractor enthusiasts or commencing home windows to improve air movement, investing in new double glazing is regularly the best lengthy-time period answer. By upgrading to modern, electricity-efficient home windows with advanced substances and customizable designs, you can not only save condensation but also beautify your private home’s consolation, herbal mild, and basic look. 

Additionally, new double glazing permits you to shop money on power bills and reduce protection charges over the years. To locate the quality offers on exceptional double glazing, consider reaching out to Double Glazing On The Web, in which you may hook up with local installers and providers to get aggressive charges and professional installation offerings.


What are the main reasons for condensation in double glazing? 

The number one reasons for condensation in double glazing include failed sealant across the window, negative air circulation, excessive humidity, and good sized temperature differences among the outside and inside of your house.

Can condensation in double glazing lead to health troubles? 

Yes, if left untreated, condensation in double glazing can result in the increase of black mould, which could launch dangerous spores into your home’s atmosphere. These spores can enter your lungs and cause respiratory issues and different fitness problems.

How can I prevent condensation at the internal pane of my double glazing? 

To prevent condensation on the inside pane of your double glazing, you could use an extractor fan, open a window to improve airflow, or target the build-up directly with the use of a hairdryer.

Is it higher to repair or replace double glazing with condensation problems? 

While repairing double glazing with condensation issues may additionally seem like a brief fix, it frequently becomes a recurring problem. Investing in new, strength-efficient double glazing is generally the higher long-time period answer, as it can provide lasting overall performance, comfort, and savings on energy bills.

What are the advantages of putting in new double glazing to save you condensation? 

Installing new double glazing can offer severa advantages, along with stepped forward strength performance, improved natural light, stronger consolation, and decreased upkeep prices. Additionally, present day double glazing gives customizable designs and durable substances which could close for decades, making sure lengthy-lasting protection against condensation and other problems.

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