Windows in Houston fail where humidity, wind-driven rain, and tired frames meet. Seals fog because the air is wet and the sun is strong, even when no storm has cracked the glass. A gulf wind then pushes rain through a bad sill, a clogged weep, or flashing that was never tied into the wall. The pane can look fine while the stool is soaked. That is a Houston window call, not a hail-chip call.
Learn which water you have. Condensation on the room side of the glass wipes away and returns when the house is cold inside and wet outside. Water between dual panes means the seal is finished. Water that shows up on the stool only after sideways rain is a frame, sill, or flashing leak. Those three repairs do not match. A new unit set in a rotten sill or a clogged weep path will leak on the next storm.
Ask about the opening, not only the glass. Brick, wood, and hardboard each take a different flashing sequence, and wind-driven rain will find the one you skip. Weep holes plugged with paint are a small, specific fault worth saying on the phone. If the house sits where storms come in off the gulf, ask how the unit and its installation handle that wind and rain, without turning the call into a slogan. Locks and sashes that swelled in the humidity are a repair, not automatically a full replacement.
Interior fog and a musty smell at the window can be the bath-fan problem in disguise, or a leak wetting the wall cavity. Say if the drywall below the stool is soft. That detail changes whether you need a window visit, a roof visit, or both. Photograph the wet stool and the exterior joint before anyone caulks it shut. Caulk on top of a failed flashing is how the wall stays wet in a city that already has enough moisture.
Count the openings that fog, stick, or leak in a named wind, and note which wall faces the weather. Say if the sill is soft. Have the address ready and say whether you want the glass and hardware repaired or a unit reset in a dry, flashed opening. Call the number on this page.