Why is there water in the middle of my double glazing?

Author: Jermaine Gleichner IV  |  Last update: Saturday, November 15, 2025

When condensation between window panes forms, it means the seal on the insulated glass unit (IGU) has failed. Thankfully, the solution is simple — replace just the glass, not the entire window. We recommend contacting your local Glass Doctor for glass replacement.

Why is there water between my double glazing?

If you are experiencing condensation, moisture or large amounts of water between the two panes of glass it is likely the seal has completely failed. The likelihood is that the units have deteriorated past the point where they are no longer doing their job properly.

How do you get rid of condensation in the middle of double glazing?

Using Space Heaters & Hairdryers. Space heaters and hair dryers are products that are in almost any home and these can be used to help clear the condensation from your double pane windows. Place the space heater or hairdryer by the window and leave it on. This will absorb all the moisture in between the windows.

How to fix water trapped in a double glazed window?

You can reduce the effect of the condensed water by simply running a hair dryer at the place where the condensation is. You may need to duct tape it to a ladder or something as it takes awhile for the water to disappear. This is at best a temporary fix as the seal on the double pane glass has failed.

Why is there moisture on the inside of my double pane windows?

Double-paned windows are sealed to maximize insulation. If that seal breaks, cracks, or otherwise fails, moisture enters between the panes. Double-paned windows are sealed to maximize insulation. If that seal breaks, cracks, or otherwise fails, moisture enters between the panes.

What Causes Window Condensation and How to Stop It

How to get rid of water between window panes?

How to remove moisture from between window panes?
  1. Drill Tiny Holes in the Window. The initial step involves carefully drilling small holes in the window. ...
  2. Use an Anti-Fog Solution. Apply an anti-fogging solution once the moisture inside the window is gone. ...
  3. Apply Liquid Sealant to the Seal.

Can you fix foggy double pane windows?

If your windows are foggy, there are several solutions to try. Replacing the IGU (insulated glazing unit) is an excellent option to avoid replacing the whole window. You could also use a defogging spray or shaving cream to reduce the fogging. However, replacing your windows is the best way to fix the problem.

Is there a way to clean in between double pane windows?

Most often, you need a professional to clean up the inside of a double pane window, but you may be able to temporarily clean inside your windows by drilling and pouring in isopropyl alcohol. This is a risky solution though, and it's best to work with professionals if your double-pane window seal fails.

Can misted double glazing be repaired?

Seal Repair: In some cases, misted double glazing issues can be resolved by repairing or replacing the seals around the glass unit. This preventive measure ensures that moisture does not infiltrate the space between the panes in the future.

How do you get water out of the middle of a window?

Re-sealing is generally only worthwhile if the windows are really expensive custom windows. A couple of the "voo-doo" methods to remove the water are: You can use WD-40 on the area where the seal is broken (if you can find it, and that's a big "If"). This will sometimes draw the water out.

How to tell if double glazing has failed?

Clear signs of double glazing failure include:
  1. You can feel Draughts Around Your Windows.
  2. There is visible damage to the window frame such as cracks and dents.
  3. Condensation forming on the interior of your window or between panes.
  4. Chips in the glass itself.
  5. Water is leaking through the frame.

How to stop condensation on windows overnight in winter?

How to Stop Condensation on Windows Overnight. Dealing with condensation overnight requires quick and effective solutions. Consider using a dehumidifier to lower the moisture level in your room, keeping a window slightly open for better airflow, or using moisture-absorbing products like silica gel.

Can double glazed windows be resealed?

Resealing double glazing is invariably a job best left to a professional window installer. Besides resealing the window, they'll also rectify the unsightly condensation build-up between the two panes of glass. However, even professional window resealing is unlikely to be as effective as a window replacement.

How do you stop condensation on the inside of double glazed windows?

How to Stop Condensation Inside Windows
  1. Improve Ventilation: ...
  2. Use a Dehumidifier: ...
  3. Dry Clothes Outdoors: ...
  4. Install Double or Triple Glazing: ...
  5. Leave Windows Open Overnight: One way to stop condensation on windows overnight is by leaving a small gap in your windows to allow moist air to escape while you sleep.

Does vinegar stop condensation on windows?

Unfortunately, the answer is no. While vinegar does have disinfecting and deodorising properties that can clean and remove built-up condensation from windows, it does not provide a long-term solution to stopping condensation.

How long do double glazed windows last?

A double glazed window made today will typically have a lifetime of 25-30 years, and possibly more if they are installed in a sheltered location that is not subjected to extreme weather. Double glazed windows that are more exposed and regularly encounter weather can expect a lifespan of around 20 years.

How do you get water out of double glazing?

Yes, it is possible to remove condensation inside double glazing via several methods, such as inserting towels soaked in vinegar between the panes, using a heat gun, replacing any weatherstripping or sealant around the window, or using dehumidifying products (desiccants).

What to do when moisture gets between double pane windows?

Fortunately, there are several ways you can reduce this condensation build-up such as using a heat gun, placing vinegar soaked towels between the panes, using dehumidifying products and replacing any sealant or weatherstripping around the window.

How often should double glazing be replaced?

A double glazed window produced today will have a lifetime of 25-30 years and more if fitted in a sheltered location and not subject to any extreme weather. A double glazed window that does face exposed weather will expect a lifespan of 20 years.

Can double-pane windows be resealed?

When a seal is faulty, the double glazing loses its airtight ability and the argon gas is lost. This can in some cases be remedied, with resealing of your double-glazed windows a possibility.

What is the mist in double glazed windows?

Misting inside double glazing means that water has made its way between the glass panes and into the air gap. Water making its way into double glazing units is usually due to a problem with the seals. Damage can occur to window seals for many reasons: Condition and age of the window frame.

Is there a way to clean the inside of double-pane windows?

Unfortunately, cleaning the inside of double-pane windows is not recommended. The space between the two glass panes is sealed and filled with insulating gas, which helps with insulation. Opening the window or attempting to clean the inside can compromise the seal and lead to moisture or condensation buildup.

Can cloudy double glazing be repaired?

To repair the issue, one method uses a desiccant to absorb the moisture. A small hole is drilled to access the glass pane unit. A special drying agent is then injected or pumped into the hole to help dry out the window. An anti-fogging agent can also be added to help avoid the problem in the future.

How much does it cost to Defog windows?

Overall, the average price for a window defogging service is around $135 per window. Depending on the outside factors, you should expect a final price anywhere between $70 and $200 once the job gets completed.

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