Condensation between double-glazed windows is a common problem for homeowners. It occurs when the window’s seal is damaged and moisture enters the space between the panes. This not only affects the appearance of the window but also reduces its insulation properties. Over time, it can lead to mold growth, obstructed visibility, and even the need for complete glass replacement.

Household methods (wiping the glass, ventilating rooms) won’t help in this case, since the moisture is trapped inside. Only professional methods can effectively solve the issue.

Why Condensation Forms Between Glass Panes

The main reason is seal failure, which allows air and moisture to enter the inner chamber. Causes include:

• natural material aging;
  
  

• poor installation quality;
  
  

• extreme temperature fluctuations;
  
  

• mechanical damage.
  
  

Professional Methods for Eliminating Condensation

1. Drilling Micro-Holes and Drying

One of the most common techniques. Specialists drill tiny holes at the top and bottom of the glass unit. Moisture evaporates through them, and special ventilation valves are inserted to allow air circulation.

• Advantage: quick and cost-effective.
  
  

• Disadvantage: the window is no longer fully airtight.
  
  

2. Using Desiccants

With special equipment, technicians insert moisture-absorbing materials (such as silica gel granules) into the glass unit. These absorb remaining moisture and reduce the risk of recurring condensation.

• Advantage: highly effective at removing moisture.
  
  

• Disadvantage: not suitable for all window types.
  
  

3. Resealing the Glass Unit

After moisture removal, professionals replace the old seal with a new one. This significantly reduces the chance of air and water entering again.

• Advantage: long-lasting results.
  
  

• Disadvantage: requires skilled labor and precision.
  
  

4. Full Glass Replacement

If the damage is extensive or the window is old, replacing the entire glass unit within the existing frame is the most practical solution.

• Advantage: restores full insulation and sound insulation.
  
  

• Disadvantage: more expensive than repair.
  
  

When to Call Professionals

• If condensation appears regularly.
  
  

• If you see cracks or damaged seals.
  
  

• If your window loses insulation (drafts, cold near the glass).
  
  

Prevention Tips

1. Install windows only from certified companies.
   
   

2. Inspect sealant condition once a year.
   
   

3. Ensure proper indoor ventilation.
   
   

4. Avoid sudden temperature shocks (e.g., don’t pour hot water on glass in winter).
   
   

FAQ

1. Can I remove condensation between panes myself?
No, household methods won’t work. Specialized tools are required.

2. How much does professional condensation removal cost?
It depends on the method and window size. In most cases, it’s cheaper than full window replacement.

3. Will resealing permanently fix the problem?
It greatly reduces the risk, but over time the issue may return.

4. Is it worth repairing old windows?
If your windows are over 15 years old, replacing the glass unit is usually more effective.

5. Why is it dangerous to ignore condensation?
It encourages mold growth, damages furniture, and reduces home energy efficiency.

Conclusion

Condensation between double-glazed windows indicates seal failure. The only real solutions are professional: drilling micro-holes, using desiccants, resealing, or replacing the glass unit. The right method depends on the condition of your windows and your budget.

The key is not to delay repairs. Timely service helps maintain warmth, prevent mold, and extend the life of your windows.

Contact Professionals Today

Don’t postpone repairs—trust the experts. Schedule a professional inspection and window service at:

Phone: (847) 274-0368
Contact Form: windows-repair.com