If you’ve ever looked at your windows and noticed a cloudy or foggy appearance between the two panes of glass, you’re not alone. Misted double glazed windows are one of the most common glazing issues homeowners in Cheshunt and surrounding areas face.
This issue doesn’t just affect visibility – it impacts insulation, comfort, and the overall appearance of your home. Below, we explain the causes, repair options, costs, and how LN Glazing can help restore clarity and efficiency.
What Causes Windows to Mist Between the Panes?
Double glazed units are designed to seal air (or argon gas) between two panes of glass to create insulation. When that seal fails, moisture gets in – and once moisture’s inside, it’s there to stay.
Main causes include:
- Age-related wear on the seal
- Temperature fluctuations causing expansion and contraction
- Poor installation or frame movement
- Damage to the unit or its perimeter seals
Once the seal has broken, condensation forms inside the unit, creating the cloudy, foggy, or smeared look homeowners recognise.
Do Misted Windows Need Full Frame Replacement?
Many homeowners worry they need to replace the entire window, but in most cases, this isn’t necessary.
In the majority of Cheshunt properties we work on, the frames are still in good condition – meaning only the sealed unitneeds replacing.
Benefits of replacing only the glass unit:
- Cheaper than replacing the full window
- Quick installation
- No disruption to plaster, render, or decorating
- Restores insulation and visibility
This makes it a cost-effective solution for homeowners who want the window looking like new without the expense of replacing everything.
How We Repair Misted Double Glazed Units
At LN Glazing, our repair process includes:
- Inspection of the frame and seals
- Precision measuring of the existing glass
- Installation of a new, energy-efficient double glazed unit
- Disposal of the old unit
Turnaround times are typically quick, depending on glass type and size. We supply modern, energy-efficient units designed to last.
Common Questions We’re Asked
“Can you defog the glass without replacing it?”
DIY “defogging” only clears the surface temporarily. It does not fix the failed seal or restore insulation.
“Is it urgent to replace misted windows?”
Not an emergency, but the longer you leave it, the more heat you lose – increasing energy bills.
“How long do new sealed units last?”
On average, 10–20 years, depending on location and installation quality.
Trusted Local Glazing Experts
LN Glazing is trusted across Cheshunt, Harlow, Enfield, and the A406 corridor, with years of experience repairing failed sealed units for homeowners and landlords. Our installers are trained, fully insured, and skilled in domestic glazing systems of all ages.
Misted Window Repair in Cheshunt?
If you’ve noticed fogging or condensation between the panes, LN Glazing can help. We offer fast, reliable, and affordable misted window replacement.
