Skylights are a beautiful addition to any home, bringing in natural light, reducing energy costs, and adding a sense of openness to your space. But like any part of your home, skylights have a lifespan, and after about 20 years, issues can start to appear. How do you repair a skylight? Can you repair a skylight?
A common question homeowners ask is: Can I just replace the glass on my skylight? While it might seem like a cost-effective solution—especially if your skylight has become foggy or the glass is cracked—we generally do not recommend just replacing the glass on skylights over 20 years old. Here’s why.
The Problem Goes Deeper Than Just the Glass
Over time, skylight frames naturally deteriorate. Exposure to the elements—sun, rain, wind, snow—takes its toll, even on high-quality units. The seals, flashing, and frame materials break down gradually. So while replacing the glass might solve the immediate issue of fogginess or a leak, you’re still left with a 20-year-old skylight structure. That includes:
- 20-year-old seals that may no longer be watertight
- 20-year-old frames that may have warped, rusted, or cracked
- Potential leaks that could damage your roof, drywall, or insulation
Full Replacement Offers Peace of Mind
When you replace the entire skylight unit rather than just the glass, you’re essentially resetting the clock. You get new, energy-efficient glass, updated seals, improved insulation, and a frame designed to last for 20 years or more. Modern skylights are better at managing heat and UV rays, which can also help protect your interior furnishings.
When Is Glass Replacement Okay?
There are a few situations where replacing just the glass might make sense. For example, if your skylight is relatively new and the frame and seals are still in excellent condition. But for anything older than 15 to 20 years, a full skylight replacement is almost always the safer and more cost-effective choice in the long run.
Skylight Repair and Replacement | M&M Skylights
Our team at M&M Skylights is ready to help you with all your skylight needs. Whether you need to replace damaged glass, repair a frame, or install an entirely new skylight, we have the knowledge and expertise you need.