Lewis Glass · Insulated Glass Units
Foggy windows,
made clear again.
When a double-pane window fogs between the panes, the insulated glass unit (IGU) seal has failed. We replace the failed insulated glass unit while keeping your existing window frame. We measure, custom-order, and install replacement double-pane glass to fit your existing frame for homeowners and businesses throughout Nashville, Franklin, Brentwood, Murfreesboro, and Middle Tennessee, restoring energy efficiency, clarity, and performance.
IGU · Why the window itself can stay
The window is
fine. The glass is the part that failed.
A modern window is two panes of glass with an inert gas between them, sealed at the edge. When that seal fails, moisture gets in and the view gets hazy. Replacing the glass costs a fraction of replacing the window, and the view comes back clear.
INSULATED GLASS REPLACEMENT SERVICES
Common double-pane window glass problems we solve.
From foggy double-pane windows and broken insulated glass units (IGUs) to cracked window glass and failed window seals, these are the most common window glass problems we repair. We custom-measure, source, and install replacement insulated glass while preserving your existing window frame whenever possible. Lewis Glass provides professional insulated glass replacement for homeowners and businesses throughout Nashville, Franklin, Brentwood, Murfreesboro, and Middle Tennessee, restoring energy efficiency, clarity, and the appearance of your windows.
Most Common
Residential IGUs
Standard clear, low-E, tempered, and obscure glass for bathroom windows. Argon-filled where the original spec calls for it.
Storefronts & offices
Commercial IGUs
Larger formats, code-compliant tempered or laminated sourced to fit your existing storefront frames.
Code locations
Tempered safety glass
Doors, sidelights, low windows, and shower locations. Tempered to the same spec as the original installation.
Arches, transoms
Specialty shapes
Half-rounds, eyebrows, trapezoids. Templated on site, cut to match.
How it works
From foggy to clear in a few steps.
We keep the window you have and replace only the failed glass, measured, ordered, and installed by our own crew.
01
Send a photo
Take a photo of your foggy window and send us the approximate dimensions. That gives us a good idea of the failed insulated glass unit (IGU), allows us to recommend the best insulated glass replacement, and helps us provide an accurate quote for your window glass repair in Nashville and Middle Tennessee.
02
We measure
A sales technician visits your home or business to precisely measure the window opening and match the original insulated glass unit (IGU) specifications. Accurate measurements ensure your replacement double-pane glass fits perfectly within your existing window frame.
03
Unit built to fit
Your custom insulated glass unit (IGU) is manufactured to the exact dimensions and specifications of your existing window. Before installation, every replacement unit is carefully inspected to ensure quality, clarity, energy efficiency, and a precise fit.
04
We install
We carefully remove the failed insulated glass unit, install the new replacement double-pane glass, and professionally seal the window to restore its clarity, insulation, and performance. Most window glass replacement projects are completed in a single visit for homeowners and businesses throughout Nashville and Middle Tennessee.
Glass, fit & benefits
What goes into a replacement unit.
Every replacement insulated glass unit (IGU) is custom-built to match the original specifications and the exact opening in your existing window. Replacing only the failed double-pane glass restores clarity, improves energy efficiency, eliminates foggy windows, and extends the life of your existing windows for homeowners and businesses throughout Nashville, Franklin, Brentwood, Murfreesboro, and Middle Tennessee without the expense of replacing the entire window.
| GLASS | Clear, low-E, tempered, or obscure, matched to the original. |
| GAS FILL | Argon-filled where the original unit called for it. |
| INSTALL | Lewis Glass removes the failed unit and sets the new one. |
| EFFICIENCY | A fresh sealed unit, often low-E and argon-filled, cuts drafts and heat loss. |
| CLARITY | A clear, like-new view, with no more fog, haze, or streaking between the panes. |
| INSPECTION | Resolves a failed home inspection without replacing the whole window. |
faqs
Questions we get every week.
If yours isn't here, call the shop or send a photo. A real person picks up.
How do I know if my insulated glass seal has failed?
Fog, haze, or condensation trapped between the panes of your double-pane window that won't wipe away is the most common sign of a failed insulated glass unit (IGU) or broken window seal. Once the seal fails, moisture enters the space between the panes, reducing visibility and energy efficiency. Lewis Glass replaces failed insulated glass units for homeowners and businesses throughout Nashville and Middle Tennessee.
Do I need to replace the entire window?
Usually not. If your window frame and sash are still in good condition, we can replace only the failed insulated glass unit (IGU) instead of the entire window. This window glass replacement solution restores clarity and energy efficiency while saving you a significant amount compared to a full window replacement.
How long does insulated glass replacement take?
Most replacement insulated glass units (IGUs) are completed in approximately 4 to 6 weeks after measurements are confirmed. Lead times may vary depending on the glass specifications, and many replacement units arrive sooner. Once your custom glass is ready, window glass installation is typically completed in a single visit.
Do you replace the whole window or just the glass?
We specialize in insulated glass replacement, not full window replacement. If your existing window frame and sash are structurally sound, we replace only the failed double-pane glass with a new custom-built insulated glass unit. This restores your window's appearance, insulation, and performance without the cost of replacing the entire window.
Can you match Low-E, tempered, or specialty glass?
We build to your original specification as closely as our fabricators' materials allow: clear, low-E, tempered, obscure, and tinted glass. These are aftermarket units, not OEM parts. Low-E coatings, spacer types, and glass tints vary by supplier, and even factory glass varies from batch to batch, so an exact match isn't something we can guarantee. We identify your existing glass, build the closest available equivalent, and tell you where it differs before you order.
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