We also check attic ventilation near the skylight opening, since poor airflow often contributes to the condensation issues homeowners mistake for leaks.
Most skylight leaks trace back to the flashing around the curb, not the glass or dome itself — a detail general roofers sometimes miss.
We also check the surrounding shingles and decking while we're up there, since a skylight issue sometimes points to a broader roof concern.
Every Skylight Repair technician carries current Markham, IL licensing and skylight-specific training.
Local Markham dispatch means most Skylight Repair calls get scheduled within a few days.
You'll know exactly what's being fixed and why before we start.
Moisture meters help confirm whether a leak is active or residual before recommending a fix.
Not sure if it's a leak or condensation? Describe what you're seeing when you call and we'll guide the diagnosis.
We re-flash the full perimeter, not just the section that's visibly failing.
Degraded rubber seals let water in around the glass or dome even when flashing is intact.
Fogging or dripping isn't always a leak — condensation from poor ventilation can mimic leak symptoms.
When the skylight unit itself has failed — cracked glass, fogged double-pane seals — we replace it to current code.
Adding a skylight to a Markham home involves structural and flashing considerations beyond just cutting a hole in the roof.
We check airflow as part of a full Skylight Repair diagnosis, not just the flashing and seals.
Skylight Skylight Repair visits are usually quick, but we still check the full flashing system before quoting anything.
We check the full flashing system, not just the section that looks obviously damaged.
We explain the actual cause of the issue before quoting any Skylight Repair repair.
We test the repair area before considering the Skylight Repair job complete.
Diagnosed condensation versus an actual leak correctly, saved us an unnecessary repair.
— Markham Homeowner
Old skylight had degraded seals letting water in around the edges. Reseal fixed it completely.
— Markham Homeowner
Cleaned up thoroughly after the flashing work, no mess left behind.
— Markham Homeowner
They caught a ventilation issue that was actually causing the fogging we thought was a leak.
— Markham Homeowner
We handle skylight work on both residential and light commercial Markham properties.
