15 Reasons You Shouldn't Overlook Double Glazing Seal Repair

· 6 min read
15 Reasons You Shouldn't Overlook Double Glazing Seal Repair

Double Glazing Seal Repair

A leaky seal around a double-glazed windows will cancel out the insulation and energy efficiency benefits it offers. If you notice any telltale signs that your windows need to be sealed like fogging or condensation, you should act immediately.

A professional glazier can identify the problem and fix it properly so that the window can be restored to its original condition. The repair costs will vary in accordance with the size and the location of your windows as well as the quality of the windows.

1. Draughts

Cold draughts are an obvious indicator that your seals and windows aren't working properly. The main purpose of double-glazing is to keep heat in and cold out If there are cold air draughts leaking through your window then there are gaps that require sealing. You may have noticed that your energy bills are rising recently. This is due to the broken seal requires you to use more heat in order to maintain a comfortable indoor temperature.

Draughts can be caused by changes in the pressure of the gas that keeps the two window panes parallel. The pressure changes are caused by gaps or cracks in the seal. Silicone or caulk is a simple way to repair this. The key is to make sure that the gaps are completely filled in to ensure that no cold air can be able to pass through them and then allow the caulk or silicone to set before you can use your windows again.

Another issue with a faulty window seal is that water can enter the space between the glass panes. This can cause a wide range of problems including mold, damp, and wood damage. This is not just a problem for the appearance of your windows, but can also lead to health issues such as irritants and allergens for those suffering from respiratory ailments such as asthma.

The most frequent cause of the failure of a double-glazing seal is wear and tear. The seals on UPVC windows are subject to continuous degradation due to temperature fluctuations and movement, particularly if the windows are exposed to sunlight. Seals expand when warm and shrink when cold. This continuous cycle of expansion/reduction can eventually lead the sealant to fall apart.

Poor installation can also cause broken window seals. Untrained installers and DIYers are more likely to make mistakes which can cause gaps around the windows where cold draughts can infiltrate. Hire a professional installer to install double glazing or repair your windows.

2. Condensation

In general, double-glazing performs well and is very efficient at cutting down on the loss of heat through windows. The seal that holds the insulated glass together is susceptible to wear over time. In this case the moisture may form in the gap between the window panes, leaving them with a milky or foggy appearance. This is a sign the seal is damaged and must be replaced by an experienced Glazier.

There are several things that can cause this to happen, such as temperatures changes, high humidity levels, and direct sunlight. The windows' frames and sashes could also expand and shrink and cause the sealant to deteriorate. If you're not careful enough, cleaning products could erode the sealant and leave your window open to the elements.

Condensation can lead to mold growth, which can affect your indoor air quality and trigger asthma or allergies symptoms in certain people. If condensation is not fixed quickly, it can cause damage to the insulation and water around the window frame.

Faulty double-glazing also lets warm air escape to the outside, which could add to your heating bills. You'll need to replace the double-glazing units and get the faulty seals replaced so you can save money on energy costs and also protect your home from the harsher weather.

The good news is that a professional can replace the broken seal in the double-glazing unit. It's important that you offer a sample of the insulating sandwich,' so they can match the exact replacement seal design. There are hundreds of different seal designs on the market and a glazier has to know precisely which you'll need to order the right replacement.

A professional replacement of the seals on your double-glazing is the best way to be sure that the new seal is secure and airtight. A reputable business, such as Heysham Glazing, will be pleased to examine your double glazing and offer an estimate for repair or replacement.  repairmywindowsanddoors  can contact them via their website or by phone to book a no obligation quotation or inspection.

3. Noise

Double glazing can be an effective method to reduce outside noise pollution. This is especially important if you live near a busy road or school or if your house has noisy neighbours. Unfortunately, over time, the seals that hold the glass panes can fail. This could allow the noises of traffic and other people to enter your home. This could be a real inconvenience, especially for those who work from home.

There are a variety of reasons that double glazing seals may break down over time, such as severe weather conditions and ageing. Some companies offer defogging services which involves drilling a small hole into the window unit and filling it with a liquid that absorbs moisture and condensation. This does not replace the inert gas that helps to insulate windows, and could reduce their energy efficiency.


Seals that aren't working properly could cause double-glazed windows to make odd noises or sound draughty as you open and close them. This should be fixed as soon a possible to prevent damage to the window frames and keep noise and heat out of your home.

Replacing a double-glazed window seal is fairly easy. Seals for replacement are available online or in home improvement stores. They are easy to install. For the best results, it is recommended to bring the old seal when purchasing a new seal so that you can be sure they're a perfect match.

The formation of mist between the panes is a common problem with double-glazed windows. It can be caused by many reasons, but is usually an indication that the seals aren't working properly. If not addressed, it could cause damp in your home and lead to rot or mould. You can avoid this by cleaning your windows regularly and making sure the air between them is dry. You can also consider a company that defogs that sprays a specific fluid inside the window to dry out the air and reduce fogging.

4. Damage

Double glazing has several benefits over single pane windows however it is essential to regularly inspect them for indications of damage. This will ensure that your windows continue to provide efficient insulation and protection to your home. Double glazing problems are often caused by condensation between glass panes or misted windows. It is possible to correct these problems, but it requires patience and focus on the details to achieve the best results.

Condensation in the window panes is a sign that the seal is starting to fail, and moisture is beginning to enter the window unit. Re-sealing the window and repressurizing it is usually enough to fix the problem. As long as the cracks or chips are not visible through the glass and do not impact the structural integrity of the window they can be fixed.

A double glazed window should be airtight, however with time, the seal may be damaged. This will let heat and moisture leak into the house and cause a myriad of issues. The most obvious symptom is higher energy bills as your heating system will have to be more efficient to maintain the temperature. Discoloration and fog can result from moisture and condensation on windows.

Professional assistance is often the best option when it comes to repairing uPVC double glazed Windows. A glazier has the equipment and knowledge required to quickly determine the problem with your windows and recommend the correct solution. They will also have the ability to apply a more effective sealant which is essential for achieving a good result.

When sealing your double-glazed windows, it's important to prepare the area prior to when you begin. This includes covering furniture around as well as removing sash from frame and cleaning the window and surrounding area. Wearing protective equipment like gloves and goggles will help you avoid scratches or streaks of smears on the interior. Once windows have been cleaned and dried, a new silicone sealant is applied. Once the silicone sealant has set, the sash is put back on and the window is now ready to use.