Skylights in this home were in desperate condition — over 30 years old and long past their expected lifespan. Homeowners often ask us, “Why is my skylight leaking?” The truth is, there are several reasons: failed sealant, poor installation techniques, cracked glass panes, improper or missing flashing systems, and, of course, simple age.

Why Replace Old Skylights?

If your skylight is 25 years or older, we strongly recommend replacing it, even if it hasn’t started leaking yet. Old skylights compromise energy efficiency and can quickly fail. Ideally, skylights should be replaced whenever the roof is replaced to ensure proper waterproofing and long-term protection.

Additional Issues Found

During this project, we also discovered rotten plywood in a few areas, caused by poor attic ventilation. Our team removed and replaced the damaged section of the roof before proceeding with the skylight installation. Addressing these issues early helps prevent further structural damage and ensures a solid foundation for the new skylight.

The Skylight Solution

For this replacement, we installed a Velux FS C06 Clean Comfort Plus deck-mounted skylight with a matching Velux flashing kit. This model is specifically designed to provide superior natural light, energy efficiency, and long-lasting leak protection when combined with proper installation.

End Result

✔ Rotten plywood repaired and roof reinforced

✔ New Velux skylight installed with proper flashing

✔ Leak-free performance and improved energy efficiency

✔ A happy homeowner with a brighter, healthier home

👉 Thinking about replacing your old skylights? Trust The Roof Whisperer for expert installation across Toronto and Southern Ontario. Contact us today for a professional skylight assessment.