Frequently Asked Questions

Questions About Foggy Glass Replacement?

We've compiled answers to the most common questions homeowners ask about foggy windows, our repair process, pricing, and warranty. Can't find what you're looking for? Contact us and we'll be happy to help.

Apex Windows & Glass specializes in foggy glass replacement and double-pane window repair throughout the Dallas-Fort Worth metroplex. Rather than replacing your entire window — frame and all — we replace only the insulated glass unit (IGU), which is the sealed glass panel. This saves homeowners 50–70% compared to a full window replacement while restoring clarity, insulation, and curb appeal.
We serve over 50 cities across the Dallas-Fort Worth metroplex, including Dallas, Fort Worth, Plano, Frisco, McKinney, Arlington, Irving, Garland, Grand Prairie, Mesquite, Richardson, Allen, Flower Mound, Southlake, Grapevine, Keller, Denton, Lewisville, Carrollton, Rockwall, and many more. If you're in the DFW area, chances are we can help. Call us at (214) 263-3008 to confirm service in your neighborhood.
Yes. Apex Windows & Glass is fully licensed and insured to operate in the state of Texas. We carry general liability insurance and workers' compensation coverage, so you can have complete peace of mind when our technicians are working on your home.
Our team brings over 30+ years of combined experience in the glass and window industry. We've helped more than 1,000+ homeowners across the DFW metroplex restore their foggy windows to crystal-clear condition.
Foggy windows are caused by a failed seal in the insulated glass unit (IGU). Double-pane and triple-pane windows have an airtight seal around the edges that keeps insulating gas (usually argon) between the panes. Over time, exposure to UV rays, temperature fluctuations, and moisture can degrade this seal. Once the seal fails, the argon escapes and humid air enters, causing condensation — the "fog" — between the panes that you can't wipe away.
In most cases, you do not need to replace the entire window. The frame is usually still in excellent condition — it's only the sealed glass unit that has failed. Apex Windows replaces just the insulated glass unit, restoring full clarity and insulation without the cost or disruption of a complete window replacement. We strongly advise against DIY "de-fogging" kits, which drill into the glass and don't address the root cause — the broken seal.
Yes. We serve residential homeowners as well as commercial property owners and managers. Whether it's a single foggy window in your living room or a multi-unit office building with dozens of failed IGUs, we have the equipment and expertise to handle projects of any size.
We install a wide range of glass types, including standard double-pane insulated glass, Low-E (low-emissivity) coated glass for superior energy efficiency, argon gas-filled units, tempered safety glass, and laminated glass. During your free estimate, we'll recommend the best option based on your home's needs, window orientation, and budget.
No — and you wouldn't want to. A double-pane window is a sealed unit; the two panes and the gas between them work together as a system. If one pane is cracked or the seal has failed, the entire insulated glass unit needs to be replaced to restore proper insulation and prevent future fogging. The good news is that replacing the IGU is still far less expensive than replacing the whole window.
The cost depends on the size of the window, the type of glass selected, and accessibility. On average, homeowners save 50–70% compared to a full window replacement. We provide free, no-obligation estimates so you'll know the exact cost before any work begins. Call us at (214) 263-3008 or fill out our online contact form to schedule yours.
Absolutely. Every project starts with a free, no-obligation on-site estimate. One of our experienced technicians will inspect your windows, discuss your options, and provide a transparent, written quote — no hidden fees, no pressure.
We understand that window repairs can be an unexpected expense. Please call us at (214) 263-3008 to discuss your situation — we're happy to work with homeowners to find a payment arrangement that fits their budget.
Yes. Beyond restoring your view, replacing failed IGUs restores the window's insulating properties, which can meaningfully reduce your heating and cooling bills — especially important in the Texas heat. It also improves curb appeal and can increase your home's resale value. Most homeowners see a return on their investment through energy savings within a few years.
The process is straightforward: (1) Schedule a free estimate — we'll inspect your windows and provide a quote. (2) We custom-order your new insulated glass units to the exact specifications of your windows. (3) On installation day, our technicians carefully remove the old glass and install the new IGU, ensuring a perfect seal. (4) We clean up and do a final quality check. Most single-window replacements take about 30–60 minutes.
A typical single-window glass replacement takes 30–60 minutes. For larger projects with multiple windows, we'll provide a time estimate during your consultation. We work efficiently to minimize disruption to your daily routine, and most residential jobs are completed in a single visit.
We recommend that an adult be present during the installation, but we understand that schedules can be tight. We'll work with you to find a convenient time, and we can discuss arrangements if you're unable to be home. Our technicians are background-checked and fully insured for your peace of mind.
Custom glass orders typically take 5–10 business days, depending on the glass type and specifications. For standard sizes, turnaround can be faster. We'll keep you informed throughout the process and schedule your installation as soon as the glass arrives.
We stand behind our work with a comprehensive 10-year warranty on all glass replacement services. This covers both the insulated glass unit itself and our installation workmanship. If you experience any issues with fogging or seal failure on a unit we installed, we'll make it right at no additional cost.
Our 10-year warranty covers seal failure (re-fogging), manufacturing defects in the insulated glass unit, and installation workmanship. It does not cover damage caused by impact, accidents, acts of nature, or improper modifications by third parties. Full warranty details are provided with every completed job.
Yes, our warranty is transferable to the new homeowner, which can be a valuable selling point when listing your property. Simply contact us with the new owner's information and we'll update our records.
Yes. Failed window seals mean your windows are no longer insulating properly, forcing your HVAC system to work harder — especially during Texas summers when temperatures regularly exceed 100°F. Replacing the glass restores the insulating gas layer and, if you upgrade to Low-E glass, can further reduce solar heat gain. Many homeowners report noticeable reductions in their energy bills after replacing foggy glass.
Low-E (low-emissivity) glass has a microscopically thin metallic coating that reflects infrared heat while allowing visible light to pass through. In the Texas climate, Low-E glass is highly recommended because it reduces solar heat gain in summer and retains interior warmth in winter. The upgrade cost is modest compared to the long-term energy savings, and we can help you determine if it's the right choice during your free estimate.
Argon is a colorless, odorless, non-toxic inert gas that is denser than air. When sealed between the panes of an insulated glass unit, it provides significantly better thermal insulation than regular air — reducing heat transfer by up to 30%. All of our standard replacement IGUs come filled with argon gas at no extra charge.
Signs of poor window efficiency include: visible fog or condensation between panes, drafts near windows even when closed, noticeable temperature differences near windows, higher-than-expected energy bills, and difficulty maintaining consistent indoor temperatures. If you notice any of these signs, your window seals may have failed. Contact us for a free inspection — we'll assess your windows and let you know which ones need attention.

Still Have Questions?

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