Your Windows Could Be Costing You Hundreds in Energy Bills – Here’s How to Spot Failing Seals Before It’s Too Late

Window seal failure is one of the most overlooked yet costly issues affecting homeowners across the country in 2024. When seals break, windows become less energy efficient, more drafty, and your heating and cooling systems have to work harder to maintain comfortable temperatures, leading to increased energy consumption and higher utility bills. Understanding how to identify and address these problems early can save you hundreds of dollars annually while maintaining your home’s comfort.

What Are Window Seals and Why Do They Matter?

Window seals seal off the space between window panes to create an airtight gap between them, which is often filled with an inert gas to increase the window’s insulation and energy efficiency. These thin, flexible barriers are installed along the edges of double-pane or triple-pane windows, sealing in inert gas like argon or krypton trapped between the panes. This gas layer acts as insulation, improving energy efficiency and preventing temperature fluctuations in your home.

Under ideal conditions, these seals can last decades, though improper usage or exceptional weather can deteriorate and rupture them. Window seals naturally deteriorate with age, especially after 10–20 years, making regular inspection crucial for maintaining your home’s energy efficiency.

Key Signs Your Window Seals Are Failing

1. Fogging and Condensation Between Panes

Condensation trapped between a window’s panes of glass is a sure sign that the IGU’s seal is leaking. When a window seal breaks, moisture from the air outside will start to accumulate between the panes, resulting in fog and beads of water on the glass. Only when the moisture is between the glass panes does it indicate a breached seal – exterior or interior condensation is normal in humid climates.

2. Sudden Increase in Energy Bills

A broken window seal will greatly decrease your home’s energy efficiency by requiring your HVAC system to work harder to maintain comfortable temperatures. If you’ve seen a recent spike in your power bills, a broken window seal might be the culprit. This subtle yet impactful indication occurs when window seals fail and lose their insulating properties, allowing heat to escape during winter and enter during summer, leading to your heating and cooling systems working harder.

3. Drafts and Air Leakage

If you notice drafts of fresh air coming into your home from your windows, you may have a bad window seal. To check, hold a lit candle near the window edges on a windy day—if the flame flickers, air is leaking through. If you feel drafts near the window or notice temperature variations, the seal might be compromised.

4. Physical Damage to Seals

Physical damage to the window frame or seal area can also lead to seal failure. Check for cracks, gaps, or deterioration in the sealant or the window frame. Physical damage can occur due to harsh weather, accidental impact, or general wear and tear over time.

What Causes Window Seal Failure?

Several factors contribute to seal deterioration:

• Thermal expansion and contraction from temperature changes cause windows to expand and contract, and over time, this stress can weaken or crack the seal
• Poor installation that puts unnecessary stress on the seals, causing premature failure
• Water damage from poor drainage or flashing issues that can wear down seals
• UV exposure from sunlight that can degrade window materials and cause seals to dry out and crack

Repair vs. Replacement: Making the Right Choice

The good news is that, in many cases, a broken window seal can be repaired—especially if the damage is caught early. Professionally fixing a failed window seal generally costs between $100 and $200, though it can cost significantly more to fully replace the entire window.

Consider repair when:

• The window frame is in good condition
• The seal failure is recent and limited
• The overall window structure is sound

Generally, it’s best to replace a window with a broken seal instead of repairing it when seal failure has caused significant warping, fogging, or structural issues. When an old window’s seal failure leads to considerable heat loss or discomfort, a replacement window can restore insulation and energy efficiency.

Professional Help vs. DIY Solutions

Most window seal fixes are pretty complex, so they don’t make good DIY projects and should be left to professionals. If you notice persistent drafts or condensation that won’t quit, it might be time to call in a pro. They can assess the situation and tell you if it’s a minor fix or if you’re looking at a bigger issue. It’s better to get it checked sooner rather than later because ignoring it could lead to more expensive repairs.

When searching for professional help, look for experienced local providers who offer comprehensive window repair near me services. Companies like Express Glass and Door in Pinellas County, Florida, have built their reputation on transparent pricing and quality repairs over more than three decades of family-owned service.

The Cost of Ignoring Failed Seals

Window seal failure can lead to various issues beyond just drafts and energy loss. Moisture buildup between the panes can result in unsightly condensation, and neglecting window seal failure can lead to more significant issues down the line, such as water damage and mold growth. By addressing the problem promptly, you can prevent costly repairs and maintain a healthy living environment.

A broken window seal will only worsen over time, leading to exacerbated energy loss, mold and mildew, foggy windows, and drafts. This is no small matter, especially in the winter or summer months, when all your windows need to be airtight to prevent massive energy loss and higher utility bills.

Prevention and Maintenance

Regular maintenance can extend the life of your window seals:

• Avoid using harsh chemicals or tools when cleaning, as they can damage the seal. Stick to mild soap and water, and use a soft cloth
• Schedule annual inspections to catch problems early
• Be careful during home improvements not to bump or scratch the windows. A little caution goes a long way in keeping those seals intact
• Address any drainage issues around windows promptly

Conclusion

Recognizing the signs of window seal failure is crucial for maintaining the energy efficiency and comfort of your home. By understanding the causes, identifying the signs, and taking preventative measures, you can prolong the lifespan of your window seals and address the issue promptly. Don’t let failing window seals drain your wallet through increased energy costs – early detection and professional repair can save you significant money while keeping your home comfortable year-round.

If you suspect window seal failure in your home, contact a qualified professional for an assessment. The investment in proper diagnosis and repair will pay dividends in energy savings and home comfort for years to come.