Foggy Glass Skylight Repair & IGU Replacement in Orange County, CA
Why Skylight Glass Gets Foggy or Cloudy
Foggy or milky glass inside a skylight is a clear sign of Insulated Glass Unit (IGU) failure.
When the factory-sealed double-pane glass loses its vacuum or argon gas, moisture enters between the panes and creates:
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fogging
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white cloudiness
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streaks between the panes
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water droplets inside the glass
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rainbow haze
This issue cannot be cleaned or fixed from inside — the seal is permanently compromised.
What Causes IGU Failure
Common reasons skylight glass fails:
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Age (10–20 years is the typical lifespan of older units)
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UV exposure that dries out perimeter seals
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Heat expansion on the roof that stresses the IGU
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Condensation inside the frame corroding the seal
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Poor-quality builder skylights with thin seals
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Hail or micro-cracks that break the argon seal
Once moisture enters the insulated glass cavity — the skylight is no longer energy efficient and will continue to degrade.
When You Should Replace the IGU
Skylight IGU replacement is recommended if you notice:
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persistent fog or haze between the panes
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condensation trapped inside the glass
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visible streaking or mineral deposits
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cold or hot drafts around the skylight
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increased home temperatures
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reduced daylight transmission
A failed IGU also means the skylight is no longer insulating properly.
Your Options — Glass-Only vs Full Skylight Replacement
Option 1 — Replace Only the Glass (IGU Swap)
We can replace only the insulated glass unit if:
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your skylight frame is in good condition
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the model is compatible with VELUX replacement glass
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flashing is still performing correctly
VELUX sells replacement glass kits for many models.
Pros:
✔ Lower cost
✔ Faster installation
✔ No interior work in most cases
Cons:
✘ Old frame still has no warranty
✘ Older domes or seals may fail next
✘ Not all models support IGU replacement
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Option 2 — Full Skylight Replacement (Recommended for Older Units)
For skylights 15+ years old, a full replacement is the best option:
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New Energy Star rated glass
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Argon-filled insulated glazing
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Low-E coatings
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Improved sound reduction
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Better heat protection
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Full VELUX warranty
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New flashing system
Most homeowners choose full replacement because it fixes all problems at once and improves comfort.
Professional IGU Inspection
We provide a full assessment:
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identify whether the seal failed
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check for frame corrosion
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measure the unit for exact IGU matching
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evaluate existing flashing condition
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recommend glass-only or full replacement
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provide exact cost for both options
Why Homeowners Choose Us
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Certified VELUX Installer
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Licensed & Insured (#1099068)
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Over 10 years of skylight experience
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Precise diagnostics — no guesswork
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Clean, professional, respectful service
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Transparent pricing
Service Area
We proudly serve all of Orange County, including:
Irvine, Mission Viejo, Lake Forest, Laguna Niguel, Laguna Hills, Aliso Viejo, Newport Beach, Costa Mesa, Tustin, Orange, Laguna Beach, Dana Point, San Clemente, Garden Grove, Huntington Beach.