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Home / Services / Double Pane & Insulated Glass Replacement

Double Pane Glass Replacement in Boca Raton, FL

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.

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Licensed and Insured

Licensed contractor for your peace of mind

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In-House Team

Every job handled by our own crew

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Glass Unit Replacement

Without a full window tear-out

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Available Mon to Sat

Monday to Friday 9 AM to 6 PM, Saturday 10 AM to 2 PM

Double pane insulated glass unit

Double Pane, Dual Pane, Insulated Glass: One Unit, Several 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 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.

Can a Double Pane Window Be Repaired?

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.

When Replacement Is the Right Call

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:

  • 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.

Failed insulated glass unit fogging
Cracked double pane glass

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.

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

What the IGU 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.
IGU replacement process

Why South Florida Homeowners Choose Atlantic Window Repair

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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

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Free Estimate

On-site assessment with no obligation

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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.

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Call (561) 320-3110

Frequently Asked Questions

What is the difference between double pane glass, insulated glass, and an IGU?

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.

Does a failed seal mean I need to replace the entire window?

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.

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 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.

How long does double pane glass 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?

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.

Will a new unit match the windows around it?

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.

Can you replace the glass in a window that is no longer made?

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.

Is it ever better to replace the whole window instead of the glass?

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.

Can I replace the glass in a double pane window myself?

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.

Do you replace double pane glass in sliding doors?

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.

Get a Free Estimate for Double Pane 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 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

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