Chimney Leak Repair in Shavano Park, TX

Why Shavano Park Chimneys Leak: Multi-Flue Custom Stacks

Leaks in Shavano Park almost always trace back to one thing: water pooling behind wide stacks where the roof has no diverter. With wide custom masonry stacks carrying multiple flues side by side, water does not sit on the surface, it soaks in. On top of that we keep finding one-size caps that never fit these stacks, so we fabricate multi-flue covers to measure, which is why a leak here can look random until the entry point is found. Homes across Shavano Park, Bentley Manor, Huntington and NW Military Highway show the same pattern.

Heavy Texas downpours hit a chimney from the side, not just the top. In Shavano Park 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 Bexar 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 Shavano Park ceiling stain appeared after a storm, tell us which direction the rain came from. With water pooling behind wide stacks where the roof has no diverter, that one detail usually narrows the entry point before we are on the roof.