Roofing in San Antonio has to survive a long bake and then a hailstorm that arrives with a downpour. Concrete and clay tile are common, and the tile is the armor, not the waterproofing. Hail cracks and slips tiles. The rain that comes with it finds the underlayment, the valleys, and any flashing pulled loose at a stucco or stone wall. Asphalt on a south slope may already be brittle from heat before the first stone of ice hits.
Do not stop at a few cracked tiles on the front slope. Water runs under tile for a long way before it stains a ceiling, so an attic look matters more than a curb count. Soft decking, daylight at a jack, and wet insulation tell you the underlayment has given up. Low-slope patio covers and dead valleys hold the cloudburst. A repair that replaces three visible tiles and ignores the felt beneath them will leak again the next time the plateau sends a storm south.
Heat aging and hail leave different marks, and this city stacks them. Bald, cooked asphalt without fresh spatter is age. Fresh spatter on flue metal and a bruise you can feel is hail. Cracked tile with a clean break is impact. Say which you have, because a full slope and a targeted underlayment repair are not the same visit. Wind can lift an edge, but it is not the gulf story. The lead here is hail plus rain on a hot roof.
Cover active leaks without hiding the broken material. Photograph slopes, gutters, and the tile in the yard. Ask how the deck and the underlayment will be handled, not only how the tile will look from the street. Flashing at chimneys and sidewalls in older stone houses near downtown fails quietly and soaks plaster. Mention that plaster stain. Ventilation still matters, because the attic heat that baked the last roof will bake the next one.
Have the address, tile or asphalt, and whether the leak shows in rain or you are looking at hail you can already see. Give the rough age if you know it. Ask for a visit that gets under the tile or the shingle, into the attic, and onto the flashing. Call the number on this page.