A cracked pane, a seal that gave out, fog that no cloth can reach. When a double pane window fails, the frame around it is usually still sound. Double pane glass replacement swaps the sealed glass unit and leaves the frame, the sash, and the hardware where they are.
Atlantic Window Repair replaces double pane and insulated glass units in existing frames across Boca Raton and South Florida. The failed unit comes out and a new one, built to the measurements of your window, goes in. Clarity and insulation come back, and on impact-rated windows so does the storm protection.
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.

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 and dual pane are the terms most homeowners use. Thermal pane is an older name for the same thing. Insulated glass unit, or IGU, is what contractors and manufacturers say. All of them describe one sealed assembly, so IGU replacement and double pane window glass replacement are a single job.
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.
It depends on which part failed. The glass unit itself cannot be patched. The two panes and the seal between them are one factory assembly, so a crack in either pane means the unit is replaced. There is no way to swap a single sheet and reseal it on site.
That is still a repair to the window, not a new window. Replacing the glass in a double pane window keeps the frame in the wall, so nothing is cut out of the stucco or the trim, and the room looks the way it did before.
Plenty of double pane window repair has nothing to do with the glass. A sash that drops, a crank that spins, or a lock that will not catch is window mechanism repair, and the sealed unit stays in place. Older windows with one sheet of glass and no sealed cavity go through single pane glass replacement instead.
Broken glass is the simplest case. A cracked or shattered pane means a new unit, whatever caused the break.
Beyond that, replacement is the right answer when:
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.


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:
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.
Interior glass is a different job: offices and homes that need new glass walls get them through glass office partitions.

Without a full window tear-out
Every job handled by our own crew
Including impact ratings and spacer color
Frame or sill damage addressed in the same visit
Serving Boca Raton and South Florida communities
On-site assessment with no obligation
Skip the form and pick a time that works for you. A licensed technician will come to your property for a free in-home estimate. Booking takes about a minute.
There is no practical difference. All three describe the same sealed assembly: two panes with an insulating cavity between them. Double pane is the homeowner's term, insulated glass is the trade term, and IGU, short for insulated glass unit, is what goes on the manufacturer's order. Insulated glass unit replacement is the same job whichever name you use.
No, it almost never does. 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.
Yes, we can. An impact window needs an impact unit, so the job runs as hurricane impact glass replacement: the new unit is built to the same rating as the one coming out, and ordinary glass never goes 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.
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.
That gets fixed alongside the glass. A failed seal that has caused rot in a wood frame, sill, or surrounding trim is handled through our in-house woodworking shop. We assess the frame during the estimate and include any woodwork in the quote.
Yes, it usually will. 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.
Yes, in most cases we can. The unit is built to your measurements rather than ordered from the catalog of the original manufacturer, 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.
Yes, sometimes it is. 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.
No, it is not a realistic do-it-yourself job. A sealed unit cannot be cut down or assembled at home. It is built to order to the exact width, height, and thickness of the opening, and tempered glass cannot be trimmed at all once it is made. Getting the old unit out is the other risk, because the stops that hold it turn brittle after years in the sun and the glass can break on the way out.
Yes, we do. A patio door panel holds the same kind of sealed unit as a window, only larger and always tempered. The glass is replaced inside the existing panel, and rollers or tracks that need attention on that visit are covered by sliding glass door repair. Hinged entry and French doors with insulated glass are covered by door 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.
Serving South Florida's tri-county region with insulated glass replacement
Boca Raton · Delray Beach · Boynton Beach · Lake Worth · Highland Beach · Parkland
Pompano Beach · Deerfield Beach · and surrounding communities
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