Foggy Window Repair
in Boca Raton, FL
That haze between your window panes is not dirt on the glass, and it will not clear on its own. In most cases it means the seal inside a double pane window has failed and moisture has entered the space between the panes. The question is whether the window needs defogging or a full glass replacement, and that depends on the condition of the window, not on a standard price list.
Atlantic Window Repair assesses each foggy window on site and recommends the option that actually solves the problem. If defogging will restore clarity and extend the window's life, we do that. If the seal failure is too advanced or the glass has degraded, we replace the sealed glass unit and save the frame. We do not push replacements when a repair will do the job.
Serving Boca Raton, Delray Beach, Boynton Beach, Pompano Beach, Deerfield Beach, and surrounding South Florida communities.
First, Check Which Kind of Condensation You Have
Not every cloudy window has a failed seal. Three different things look similar from across the room, and only one of them is a repair.
The test takes ten seconds. If a cloth clears it, you do not need us.
Why Windows Go Foggy in South Florida
Double pane and triple pane windows are sealed units. The space between the panes is filled with dry air or an inert gas, usually argon, and sealed shut at the factory. That seal is what gives the window its insulating value and keeps the glass clear.
In South Florida, seals fail faster than in most of the country. Intense heat, ultraviolet light, high humidity, and daily thermal cycling as the glass expands and contracts between morning and afternoon all put steady mechanical stress on the seal. Salt air along the coast speeds the process up further.
Once the seal fails:
- Moisture-laden outside air enters the space between the panes
- The drying material inside the spacer bar absorbs that moisture until it is saturated
- Condensation forms on the inner glass surfaces and cannot evaporate
- Mineral deposits and haze build up over time, and visibility gets worse
The result is a window that looks permanently fogged from the inside, and no amount of cleaning the exterior will fix it.
Repair or Replace: How We Decide
There are two ways to address a foggy window. Which one is right depends on what we find when we inspect the unit.
Option 1: Defogging
Defogging means drilling small, inconspicuous holes through the outer pane, cleaning the interior surfaces of the glass, injecting a drying compound along the spacer bar, and fitting vents that let the unit equalize pressure over time. The holes are sealed and nearly invisible once the work is done.
Defogging is the right call when:
- The glass itself is undamaged and structurally sound
- The fogging is moderate and has not left heavy mineral staining on the inner surfaces
- The frame and hardware are in good condition
- The window is relatively recent and has useful life left in it
It costs less than replacing the glass and restores acceptable clarity in many cases.
Option 2: Replacing the Sealed Glass Unit
When defogging will not hold, the sealed glass unit comes out and a new one goes in. The frame, the sash, and the hardware all stay where they are.
We make that call on site, after looking at the window, not over the phone. If that is where your window lands, double pane and insulated glass replacement covers how the new unit is matched and fitted.
How the Process Works
- Free on-site estimate. We inspect each foggy window, judge how far the seal has gone, and check the condition of the glass and the frame. You get a clear recommendation and a quote before any work begins.
- Repair or replacement, confirmed with you. We explain the recommendation and the reasoning behind it. You decide.
- Work completed in one visit. Whether it is defogging or a new sealed unit, most jobs are finished in that single visit. We clean the area before we leave.
- Result verified. We check the clarity and the seal of every unit before calling the job done.
Foggy Windows in Boca Raton: What Makes South Florida Different
Most window seal manufacturers design for a temperate climate. South Florida's conditions are a different category. Homes in Boca Raton, Delray Beach, and Boynton Beach face UV index levels and temperature swings that accelerate seal degradation well ahead of the rated lifespan.
Homes within a few miles of the coast — including much of eastern Boca Raton and Highland Beach — face additional salt air exposure that corrodes both the seal material and the spacer bar. This is why foggy windows are so common in South Florida, and why addressing them promptly matters: a failed seal that is left untreated allows moisture to reach the window frame, the sill, and potentially the surrounding wall structure over time.
Replacing or repairing a failed seal early is always less expensive than dealing with the secondary damage it can cause.
Why Homeowners in South Florida Choose Atlantic Window Repair
Honest On-Site Assessment
We recommend repair only when it will produce a lasting result
Both Options Available
Defogging and new sealed glass — no upselling
In-House Team Only
Seven licensed master technicians, no subcontractors
In-House Woodworking
Frame or sill damage addressed in the same visit
6+ Years Serving
Boca Raton and South Florida communities
Free Estimate
On-site assessment with no obligation
Frequently Asked Questions
Can foggy windows be fixed without replacing the glass?
Yes, they can, in many cases. Defogging cleans the interior surfaces and adds a drying compound, which restores acceptable clarity when the glass is undamaged and the fogging is not too far along. We assess each window individually and recommend it when it will genuinely solve the problem.
How do I know if my window needs defogging or full replacement?
Not from a photo, no. It comes down to how long the seal has been failing, whether the inner surfaces have been etched or stained by mineral deposits, the age and condition of the unit, and whether someone has already attempted a repair. We make that assessment on site at no charge.
Does a foggy window cost me anything if I just live with it?
Yes, it does. The seal was holding a layer of dry gas between the panes, and that layer is what kept the heat out. Once it goes, the window insulates closer to a single sheet of glass, so the room behind it runs warmer and the air conditioning works harder through a Florida summer. Water sitting in the cavity is the other half of it, because on a wood frame it eventually reaches the sill.
Does fogging mean I need to replace the entire window frame?
Almost never. Fogging is a failure of the sealed glass unit, not the frame. In the vast majority of cases the frame is in good condition and only the glass needs to be addressed — either through defogging or a new sealed unit. Full frame replacement is only warranted when the frame itself is corroded, warped, or structurally damaged.
How long does foggy window repair take?
Most residential jobs — whether defogging or glass replacement — are completed in a single visit. We confirm the scope and timeline before starting any work.
Will the fogging come back after defogging?
Sometimes it does. Defogging clears the existing moisture and slows further degradation, but it does not restore the original factory seal. That is why we recommend it only when we believe it will hold. If the seal failure is too far along, we say so upfront and recommend replacement instead.
Can you also repair the window frame or sill if moisture has caused damage?
Yes. Atlantic Window Repair operates an in-house woodworking workshop. If a failed seal has caused rot or damage to the wood frame, sill, or surrounding trim, we can address that in the same service visit.
Do the defogging kits sold online actually work?
Rarely, and not for long. The kits drill a vent hole and let the trapped moisture out, which clears the haze for a while. What is in the box does not restore the seal or replace the drying material that has already soaked through, so in Florida humidity the fog usually comes back within a season.
Can foggy glass be cleaned from the inside?
No, it cannot. The haze sits inside a cavity that was sealed shut at the factory, so there is no way to reach those two surfaces without taking the unit apart. Washing the faces you can reach changes nothing at all.
Do you repair foggy sliding doors and impact glass units?
Both come up as often as windows do. A sealed unit fails the same way in a patio door as it does in a window, and glass in sliding glass doors is swapped inside the existing panel. Impact units that pair laminated glass with an insulated cavity go through hurricane impact glass replacement.
Do all the fogged windows have to be done at once?
Not at all. Each unit is priced and handled separately, so plenty of people start with the windows they look through every day and leave a spare bedroom for later. We measure everything on the visit either way, which means the rest can be ordered whenever you are ready without a second trip out.
Book Your Free Foggy Window Assessment
Foggy windows do not clear on their own, and the longer a failed seal goes untreated, the more it can cost to fix. Call us or send a message to schedule your free on-site estimate. We will tell you exactly what your windows need and give you a clear quote before any work begins.
Service Area
Serving South Florida's tri-county region with professional foggy window repair
Palm Beach County
Boca Raton · Delray Beach · Boynton Beach · Lake Worth · Highland Beach · Parkland
Broward County
Pompano Beach · Deerfield Beach · and surrounding communities
Miami-Dade County
Select service areas — contact us to confirm coverage
Brands We Service
Foggy panes come from a failed insulated glass seal, common in vinyl units from CWS and Alside and in impact units from PGT. We replace the sealed glass unit itself while keeping your existing frame — cleaning can’t clear fog that’s sealed inside the glass.