Chimney Leak Repair in Cibolo, TX

Why Cibolo Chimneys Leak: Newer Homes, First Maintenance Cycle

Leaks in Cibolo almost always trace back to one thing: flat-land storms that dump water straight onto the chase top. With prefabricated fireplaces with metal chases and thin brick skirting, water does not sit on the surface, it soaks in. On top of that we keep finding original builder-grade galvanized chase covers rusting through at roughly the fifteen-year mark, which is why a leak here can look random until the entry point is found. Homes across Bentwood Ranch, Cibolo Valley Ranch, Falcon Ridge and Steele Creek show the same pattern.

Heavy Texas downpours hit a chimney from the side, not just the top. In Cibolo we regularly trace leaks to failed counter-flashing and cracked crowns that only leak when rain is wind-driven, which is why the stain seems to come and go.

Brick and stone in Guadalupe County are porous too. Once the surface has weathered, the masonry itself absorbs water, freezes on a cold night and spalls. A breathable water repellent stops absorption while still letting the chimney dry out.

If a Cibolo ceiling stain appeared after a storm, tell us which direction the rain came from. With flat-land storms that dump water straight onto the chase top, that one detail usually narrows the entry point before we are on the roof.