I highly recommend Keller! The windows which I had replaced in my home are wonderful and I was very pleased with working with Keller. John Keller was very professional and honest in his recommendations for my windows as well as giving me a fair price for quality windows and workmanship. This is the only company to go with for window and door installation!
Door & Window Repair Service
Window Seal Repair in O'Fallon, MO
Keller Window & Door LLC repairs failed window seals for O'Fallon homeowners dealing with foggy glass and drafts.
- Clears foggy, hazy glass so you can see out of your windows again
- Stops outside air from leaking in around failed seals, reducing drafts near windows
- Helps your heating and cooling system work less by restoring the window's insulating performance
- Prevents moisture from sitting between panes and leaving permanent mineral deposits on the glass
- Saves money by replacing only the failed glass unit instead of the entire window
- Protects the window frame from moisture damage that can worsen over time if left unaddressed
Expert Window Seal Repair in O'Fallon, MO
Window seal repair is one of the most common fixes O'Fallon homeowners need, and it is often simpler than it looks. When the seal on a double-pane window fails, moist outside air gets between the glass panes and causes that hazy, fogged-up look you cannot wipe away. You may also notice drafts near the frame or a rise in your heating and cooling bills. O'Fallon sits in a Midwest climate with cold winters and humid summers. That cycle of temperature swings puts steady stress on window seals over time, and older subdivisions throughout the area often show seal failures across multiple windows at once. At Keller Window & Door LLC, we inspect the glass unit and the surrounding frame before recommending a repair path. If your frame is still solid, replacing only the failed insulated glass unit is often the most practical fix. You keep your existing frame, restore clear views, and stop air and moisture from getting back in. Call us to schedule an inspection for your O'Fallon home.
What's included
- Clears foggy, hazy glass so you can see out of your windows again
- Stops outside air from leaking in around failed seals, reducing drafts near windows
- Helps your heating and cooling system work less by restoring the window's insulating performance
- Prevents moisture from sitting between panes and leaving permanent mineral deposits on the glass
- Saves money by replacing only the failed glass unit instead of the entire window
- Protects the window frame from moisture damage that can worsen over time if left unaddressed
Andersen Certified Contractor and Elite Certified distinction
Former Andersen employee owner with 30 years field experience
Factory-level installation precision and quality standards
Transparent pricing and clean workmanship
Appointment-only service for focused attention
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FAQ
Window Seal Repair FAQ
Common questions about window seal repair in O'Fallon, MO.
A broken seal causes fogging or haze between the panes that you cannot wipe off from either side. If cleaning the glass does nothing, the seal has likely failed and your O'Fallon home needs a professional inspection.
No, not always. If the window frame is still in good condition, Keller Window & Door LLC can replace just the failed glass unit in your O'Fallon home without touching the frame.
Yes, a failed seal lets the insulating gas escape and allows outside air in, which makes your home harder to heat or cool. O'Fallon homeowners often notice higher utility costs before they spot the foggy glass.
DIY options do not restore the window's insulating performance or fix the underlying seal failure. A professional repair from Keller Window & Door LLC in O'Fallon gives you a lasting fix, not a temporary patch.
Repeated temperature swings between cold winters and hot, humid summers put ongoing stress on window seals. Over time, that thermal cycling breaks down the seal and lets moisture enter between the panes.
Call Keller Window & Door LLC directly to set up an inspection at your O'Fallon property. A technician will assess the glass unit and frame before recommending the right repair path.
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Phone
(314) 399-2001Hours
- Monday 8:30 AM - 4:30 PM
- Tuesday 8:30 AM - 4:30 PM
- Wednesday 8:30 AM - 4:30 PM
- Thursday 8:30 AM - 4:30 PM
- Friday 8:30 AM - 4:30 PM
- Saturday Closed
- Sunday Closed