Double Pane and Insulated Glass Replacement
in Boca Raton, FL
When a double pane or insulated glass window fails, whether from cracked glass, a broken seal, or fogging that cannot be repaired, the answer is not always a full window replacement. In most cases the frame is perfectly sound. What needs to go is the glass unit inside it.
Atlantic Window Repair replaces insulated glass units in existing frames. We remove the failed unit and install a new one matched to your window, restoring clarity, insulation, and on impact-rated windows, storm protection. Your frames stay.
If the glass is not broken and the only problem is haze between the panes, start with foggy window repair. Some of those windows can be treated instead of replaced.
Serving Boca Raton, Delray Beach, Boynton Beach, Pompano Beach, Deerfield Beach, Parkland, Lake Worth, Highland Beach, and surrounding communities.
Double Pane and Insulated Glass: The Same Thing, Two Names
The terms get used interchangeably, and for good reason. A double pane window is an insulated glass unit: two panes of glass separated by a sealed cavity filled with dry air or an inert gas, usually argon. That sealed cavity is what gives the window its insulating value.
Double pane is the term most homeowners use. Insulated glass, or IGU, is the term contractors and manufacturers use. Both refer to the same sealed assembly.
Which term you use changes nothing about the work. What matters is what has actually happened to the unit, because that decides whether the glass comes out at all.
When Replacement Is the Right Call
Broken glass is the simplest case. A cracked or shattered pane in a sealed unit means the whole unit is replaced, because the two panes and the seal between them are one assembly. There is no way to swap a single sheet.
Beyond that, replacement is the right answer when:
- The seal has failed and the fogging is too far along to respond to a defogging repair
- Mineral deposits have permanently etched the inner glass surfaces
- The existing unit has no heat-control coating and you want that performance without replacing the whole window
- The unit is impact rated and the glass has been compromised, so the storm protection needs restoring
- The unit is simply at the end of its life and you want a permanent fix
If you are unsure whether replacement is warranted, our technicians assess each window on site before recommending anything. We do not default to replacement when a repair will hold.
Matching the New Unit to the Old One
A sealed unit is not a stock item off a shelf. It is built to your opening, and a quarter of an inch matters.
What gets recorded at the estimate:
- The exact width, height, and overall thickness of the unit
- The width of the spacer between the panes, which sets the thickness
- Whether the glass is clear, tinted, obscure, or coated for heat control
- Whether either pane is tempered, which is common in doors and low windows
- Whether the unit is impact rated
- The color of the spacer bar, so the edge of the new unit matches the windows next to it
If the original sticker is gone, which it usually is after twenty years, the specification is read off the glass itself and off the frame system. Nothing is ordered until the numbers are confirmed on site.
If you want the reason the seal gave out in the first place, foggy window repair goes through what happens to a sealed unit in this climate.
What the Replacement Process Looks Like
- Free on-site estimate. We inspect the window, evaluate the glass and the frame, and confirm whether glass-only replacement is viable. You get a clear quote before any work begins.
- Sourcing. The unit is ordered to the numbers taken at the estimate. Nothing is cut until those are confirmed.
- Removal and installation. We take the failed unit out of the existing frame, prepare the opening, and set the new unit with proper glazing and sealing. The work area is cleaned before we leave.
- Verification. We check the seal, the fit, and the appearance of every replaced unit before the job is complete.
Why South Florida Homeowners Choose Atlantic Window Repair
Glass Unit Replacement
Without a full window tear-out
In-House Team
Every job handled by our own crew
Exact Spec Matching
Including impact ratings and spacer color
In-House Woodworking
Frame or sill damage addressed in the same visit
Licensed and Insured
Serving Boca Raton and South Florida communities
Free Estimate
On-site assessment with no obligation
Frequently Asked Questions
What is the difference between double pane and insulated glass?
There is no practical difference. Both terms describe a sealed assembly with two panes and an insulating cavity between them. Double pane is the consumer term, insulated glass is the trade term, and the replacement work is identical either way.
Does a failed seal mean I need to replace the entire window?
Almost never. Fogging and seal failure happen in the glass unit, not the frame. In the large majority of cases the frame is in good shape and only the glass is addressed. A full window replacement is warranted only when the frame itself is corroded, warped, or structurally damaged, and that goes through new window installation.
My window is impact rated. Can you replace the glass and keep that rating?
Yes, we can. An impact window needs an impact unit, so we source a replacement built to the same rating as the one coming out, and we do not substitute ordinary glass into an impact frame. Bring us the sticker or the etch mark in the corner if you still have it, and the match gets easier.
How long does the replacement take?
Most single-window jobs are finished in one visit. Multi-window jobs usually run one to two days depending on scope, and we confirm the timeline before starting.
What if the frame is also damaged from moisture?
Yes, we do handle that. A failed seal that has caused rot in a wood frame, sill, or surrounding trim is addressed in the same service visit through our in-house woodworking shop. We assess the frame during the estimate and include any woodwork in the quote.
Can you replace one unit so it matches the windows around it?
Usually, yes. A single new unit next to twenty-year-old neighbors can read slightly different, mostly because of the coating and the spacer color. We match both as closely as the current product range allows, and we tell you honestly at the estimate if a visible difference is likely.
Can you replace the glass in a window that is no longer made?
In most cases, we can. The unit is built to your measurements rather than ordered from the original manufacturer's catalog, so a discontinued window is not a dead end. What can stop us is a frame system that will not release the glass without breaking, and the technician checks for that before quoting anything.
Is it ever better to replace the whole window instead of the glass?
Sometimes, yes. If the frame is corroded, the sash no longer closes square, or the hardware is failing alongside the glass, putting a new unit into a tired frame buys you less than it costs. We say so when that is the case, rather than selling you glass twice.
Get a Free Estimate for Your Double Pane or Insulated Glass Replacement
A failed double pane or insulated glass unit does not improve on its own, and in South Florida leaving it in place means ongoing heat gain and possible moisture damage to the frame around it. Call us or send a message to book 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 certified insulated glass replacement
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