Roof Leak Detection

A roof leak rarely announces itself where the water actually enters. Moisture can travel along decking, rafters, and walls before it ever shows up as a stain on a ceiling, which is why locating the true source matters as much as fixing it. Perez Roofing & Masonry Inc. works with Chicago property owners to trace leaks back to their origin, whether that's a failed flashing seam, a worn membrane, or a gap around a chimney or parapet wall.

How We Find Hidden Leaks

Infrared Roof Moisture Scanning — identifies trapped moisture beneath the surface before it spreads or causes further damage.
Drone Roof Inspections — provides a full aerial view of the roof to spot damaged areas without added foot traffic.
Moisture Meters — digital readings help pinpoint the exact location where water is entering.

From Detection to Repair

Francisco Perez, owner of Perez Roofing & Masonry, and his crew use these findings to guide targeted repairs rather than guesswork. Once a leak source is confirmed, the fix might involve custom sheet metal flashing fabrication, sealing a flashing joint, or addressing a masonry gap near a chimney or parapet wall.

When to Call

Interior stains or dampness — often the first visible sign of a leak already in progress.
After storms — wind and heavy rain can expose or worsen small openings in roofing and flashing.
Before a small issue grows — early detection supports preventative roof repair and ongoing maintenance.