Foggy Window Repair & Insulated Glass (IGU) Replacement
When a double-pane window goes cloudy, the seal between the two panes has failed and moisture is now trapped inside the unit. No cleaning, drilling or defogging fixes that permanently — the sealed unit itself has to be replaced. The good news is the frame and sash normally stay right where they are.
Oregon CCB #263346
Active licence
$25,000 bonded
Western Surety Company
$1,000,000 insured
General liability
Free measured quote
No charge to come look
What this covers
- New sealed insulated glass units built to your measured sizes
- Low-E coatings and argon fill to restore the energy performance you lost
- Warm-edge spacers to reduce the chance of a repeat seal failure
- Tempered units where the opening requires safety glazing
- Grids and obscure patterns matched where available
Signs you need this
- A permanent haze or milky film you cannot clean off
- Water droplets or running condensation between the panes
- A visible white or chalky residue on the inside surface
- One pane noticeably colder than the rest of the house in winter
Foggy & Failed Insulated Glass — questions
Can a foggy window be defogged instead of replaced?
Defogging services drill the unit, flush it and vent it. That can clear the appearance for a while, but it does not restore the hermetic seal, the argon fill or the original insulating value, and the unit is no longer sealed against future moisture. Replacing the insulated unit is the repair that actually lasts.
Do all my windows have to be done at once?
No. Seal failures happen unit by unit, usually starting on the sun-exposed side of the house. You can replace only the ones that have failed, and it is normal to do them in batches.
Will the new unit look different from my other windows?
Modern Low-E coatings have a faint tint that can differ slightly from a 20-year-old coating beside it. It is usually only noticeable at a sharp angle. If an exact visual match matters to you, say so up front and the coating can be selected to match rather than to maximise performance.