NOAA National Centers for Environmental Information, Storm Events Database · U.S. Census Bureau, ACS 5-Year Estimates · public county data, not a national estimate
A window that fogs between the panes has a failed seal — the insulating gas escaped and moisture crept in, so no amount of cleaning helps because the fog is sealed inside the glass.
Plan it — not an emergency.
Common causes:
• A failed edge seal on the insulated glass unit, letting the sealed gas out and humidity in — the universal cause
• Age and Florida's heat cycling, which fatigue the seal over years
• Poor original glass quality or a manufacturing defect showing up early
• Repeated pressure-washing or heat stress accelerating an already-aging seal
• A full-window replacement pushed when only the glass unit needs replacing — the frame is often fine
• A promise to permanently 'defog' the window by drilling and drying, which rarely lasts
• No state license number — Florida licenses this building-envelope work at the state level
• No mention of whether the glass is still under a manufacturer warranty
Can a foggy window be fixed without full replacement?
Often yes — many foggy windows need only the insulated glass unit swapped, not the whole window and frame. If the frame is sound, replacing just the glass is far cheaper. Ask whether your glass is still under warranty first.
Is a foggy window an emergency?
No — it's a comfort and efficiency issue, not a safety one. It won't get better on its own, though, and a failed seal slowly costs you on cooling. Plan the fix rather than rushing it.
Foggy double-pane glass replacement (per window): $200–$750 (typical ~$375)
Replaces the failed insulated glass unit only, frame sound; large, second-story, or impact-rated units run to the high end, and a full window replacement is separate. Multi-window jobs often earn a per-window discount.
Curated Florida 2026 estimate — installed cost for a typical FL single-family home, not a bid.
Florida licenses this trade at the STATE level (DBPR / CILB (building envelope)). Hiring unlicensed for this work is illegal for the contractor — and risky for you: no permit rights, no insurance backing, no recourse.
Work like this often requires a county permit — a legitimate pro pulls it, not you.
Basis: FL Stat. 489 (DBPR state licensing).
Your request goes to a single license-verified Windows & Doors pro in your area — you stay anonymous until you tap connect, and we never sell your info.
Entry Door Installation Cost · How Much For Hurricane Windows · Hurricane Shutter Broken
Covered: Lee · Pinellas · Sarasota · Charlotte · Hillsborough · Manatee | As of 2026-07-15 | Local numbers appear only when the sample is large enough to protect privacy.