It’s The Evolution Of Double Glazing Seal Repairs

7 min read

Double Glazing Seal Repairs

If the seals on double glazing windows have been damaged they can lead to damp and mould. This could cause damage to the frame and wall surrounding it and impact your health.

Fortunately, the majority of uPVC windows can be repaired with sealing and resealing instead of replacing. A glazier will clean the frame and glass of the window, apply a fresh bead and smooth it.

Water Leaks

Window seals are designed to keep water out of your home. But, when they begin to wear down, it can cause water leaks around your windows. A window that is leaking is not only a nuisance but can also cause costly damage to the structure of your home. It is crucial to spot the problem early and get it fixed by a professional before it gets any worse.

Most of the time, the cause of your windows that leak is not the glass but on the frame and sill. This is the most frequent indication of a failed seal. It could be due to damage to the window seal due to weather conditions or aging, worn-out caulking or even an obstruction in the drainage area resulting in a build-up of ice or water.

Another common sign of a failing window seal is water appearing in between the panes of double-glazed windows. This isn’t as hazardous as a leak from water, as the water does not travel as far to get into your home. It does mean, however, that the inert gases that are sandwiched between your windows have escaped out. This can reduce the insulation value of your window.

The last sign of a damaged window seal is condensation between the panes. It could be the result of an ineffective window seal or it could be due to an unforgiving climate in your home or a problem with the glass. The condensation can not only be unpleasant, but it could also lead to the development of mildew and mould in your home that is very difficult and costly to get rid of.

It’s time for you to examine your double-glazed windows when you observe these indications. Repairs or replacements will aid in preventing your home from water leaks, reduce energy costs, and even prevent drafts. It’s a small cost to ensure your family’s comfort and safety. Contact Thompson Creek Window to discuss your options regarding a window replacement near me seal repair or replacement. Our experts are always available to help! We serve homeowners in the Mid-Atlantic.


A broken double-glazing seal can let water in the space that is used for insulation. This water could cause fogging or misting in the window panes.

If you notice condensation developing inside your home it’s time to call in a professional double glazing repair service. The condensation could be a sign that the vacuum seal made in the factory has was not working and moisture has entered into the enclosed space.

Condensation can be caused by range of causes and is usually caused by gaskets, sealants or insulation in the uPVC frames of the windows. There are several options for double glazing seal repairs however it is essential that the new seals are correctly size to ensure a perfect seal and a snug fit.

Typically, the gaskets that are used to seal the gaps between double-glazed units are constructed from a material such as polyurethane foam. They are designed to last for a long time but they are susceptible to deterioration as time passes because of wear and tear, as well as exposure to various temperatures and weather conditions throughout the year.

Over time the foam will shrink or crack. This can cause a break in your seal, allowing moisture to seep into the double-glazed window. This can cause condensation but it can also result in an increase in energy efficiency, meaning that you’re losing heat from your home to the outside air.

One option for fixing this issue is to have the windows resealed. This isn’t a 100% solution since it will only remove the existing condensation and not address the issues that are causing the double-glazed window to leak or create condensate.

Another solution is to replace your windows completely. This should be handled by a professional who provides an insurance backed guarantee. This means that in the event that the company fails or goes bust you’ll remain protected by the insurance. It’s important to note that the warranty on your replacement windows should be a minimum of 10 years.


As the fall months get closer, it’s a good idea make sure that your double glazing seals are in good shape. The damaged seals on your windows don’t just affect the insulation properties of your windows, but can also cause condensation, mold and damp. It’s important to fix any problems with your double glazed windows as quickly as you can to prevent further damage and save money on energy bills.

Double-glazed windows are made of two glass panes that are joined by a gas-filled internal space. An outer sealant layer then fills the gap between the uPVC frame and the glass. This is vital to ensure the airtight seal that keeps cool and warm air in your home separate which will save you money on heating costs. The seals may become damaged over time due to weather conditions, ageing or poor installation. The magic insulation formula which makes double-glazed windows so effective can begin to degrade once this occurs.

If damaged or faulty seals are not repaired they could cause dampness and condensation that can impact your health as well as the appearance of your window. Dampness and moisture can cause damage to walls, ceilings floors, and other surfaces in your home. They can also cause allergens and irritants that are detrimental to your health and the health of your family.

The most frequent issue with double glazing is misting between the panes. This happens when moisture gets into the insulated area of your window and is quite difficult to resolve without professional help for repair of the seal on your double glazing.

DIY solutions to this issue are available, but we advise against them as they could be messy and damage your windows. These methods involve drilling holes into the glass units and applying chemicals to get rid of the condensation and fog. This can cause a number problems, such as the possibility of exposing your windows and units to water damage.

Professional glaziers possess the knowledge, tools and experience needed to safely reseal your uPVC frames and provide you with long-lasting results. Not to mention they can also provide suggestions on the best way to keep your uPVC windows in good shape to avoid future issues.


A draft coming from your window is a sign that the sealant may have deteriorated. It should be repaired or replaced. This will stop cold air from entering your home, increase energy efficiency and lower heating costs and increase comfort levels and indoor temperature control.

It is important to know that some draughts aren’t caused by window seals but rather from the gap between the bricks’ frame. In certain cases, it can be possible to fix this by filling the gap by caulking it with silicone. If this does not work, it will require having the seal professionally repaired.

When the sealant on a double-glazed window starts to break down, it allows for water infiltration and can lead to damp or even mold in some instances. This could cause a negative impact on health and could be damaging to property. It is important to address any water ingress problems when you spot them. If your windows are still under guarantee it is advisable to check with the company you purchased them from, as they may pay for the repairs.

It is worth checking whether the windows are covered by warranties. Certain companies provide lifetime guarantees but others only provide 10 years. If your double-glazed windows are covered by a warranty, you should consider calling the company you bought them from as soon as you can and providing them with details of any issues you’re experiencing. It is recommended to contact the company in person or by letter and email. This will ensure that everything is clearly documented and easily understood.

It is also worth noting that draughts can often be caused by damaged hinges rather than an ineffective seal. The hinges are located close to the window sash, which is the section that you open. If they’re not oiling them regularly, they can become stiff. This could leave a gap between the frame and the sash, which can allow cold air to enter. Replacing the hinges can solve this issue without affecting window seals.

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