Repair or Replace? A Practical Checklist for Drafty, Foggy, or Cracked Windows

Your windows play a vital role in keeping your home comfortable, energy-efficient, and visually appealing. Over time, though, you might notice problems like drafts, foggy glass, or visible cracks that make you wonder whether a simple repair will do—or if it’s time for a full replacement. The truth is, not every window issue requires an overhaul, but ignoring the signs can cost you more in energy bills and repairs down the road. If you’re dealing with aging or damaged windows, this guide will help you decide whether to repair or replace—and how to make the most cost-effective choice.

1. Drafty Windows: Minor Leak or Major Problem?

Drafts are one of the most common complaints among homeowners. If cold air seeps in during Denver’s chilly winters, check for worn-out weatherstripping or gaps in the caulking. These are often quick, affordable fixes. However, if your windows are old, warped, or the frame has separated from the wall, repairs won’t solve the problem for long. In those cases, replacement becomes the better investment—improving energy efficiency and indoor comfort year-round.

2. Foggy or Condensation-Filled Glass

If you notice fog or moisture between glass panes, it usually means the window’s seal has failed. Modern double-pane and triple-pane windows rely on airtight seals to keep insulating gases inside. Once the seal breaks, efficiency drops significantly. While temporary defogging services exist, they don’t restore the insulating gas or long-term clarity. Replacing the insulated glass unit (IGU)—or the entire window, depending on its age—is often the best way to regain both energy performance and appearance.

3. Cracked or Broken Glass

Cracks in your glass compromise both safety and insulation. Small surface cracks in a single-pane window can sometimes be repaired, but double-pane windows are another story. Even a minor crack can let moisture in and affect insulation. If multiple panes are damaged or the crack extends to the edge, replacement is the safest and most efficient choice.

4. Rotting Frames or Warped Sashes

Wooden frames are charming but susceptible to rot, especially in humid or rainy conditions. If the damage is minor, repairs and sealants can help. However, if you notice soft spots, visible mold, or warped sections that prevent proper closure, full window replacement is more cost-effective in the long term. Vinyl or composite frames are durable alternatives that require minimal maintenance.

5. High Energy Bills and Poor Noise Control

Even if your windows look fine, they may be draining your wallet. Older single-pane windows allow heat transfer, forcing your HVAC system to work harder. Replacing them with energy-efficient, Low-E glass windows can cut utility costs, reduce noise, and increase comfort. Over time, these savings outweigh the initial investment.

6. Age and Overall Condition

If your windows are over 20 years old and showing multiple signs of wear—drafts, condensation, or difficulty opening—it’s time for a full upgrade. Modern windows are designed to last longer, perform better, and enhance your home’s curb appeal.

Denver’s Trusted Window Experts

Deciding whether to repair or replace your windows depends on their age, efficiency, and overall condition—but you don’t have to figure it out alone. With 10 years of experience, Tried & True Glass in Denver, Colorado, specializes in professional window repair and replacement services tailored to your home’s needs. Our experts will assess your windows honestly and help you choose the most cost-effective solution for comfort, safety, and savings. From foggy panes to complete replacements, Tried & True Glass delivers quality craftsmanship and reliable service—because your windows deserve care that’s, well, tried and true.