Windows in Hawaii fail from salt, sun, and wind-driven rain, not from ice. Hardware rusts until a sash will not lock or will not open. The wall that faces the trades takes the showers. A leeward wall takes glare and salt spray and a drier kind of leak. In a single-wall house the opening is part of a thin wall, not a deep cavity you can pack and forget.
A window that cannot open is a ventilation failure. These houses were built to use the trade winds, and people block that path, then wonder why the rooms sweat. Say if you need the breeze back, a dry sill, or both. Sun cooks seals. Humid rain rots the sill where it sits. Termites like that soft wood. Feel it before anyone orders a matching unit for the whole wall.
Count the bad openings. A jalousie that will not close, a slider with a rusted track, and a fixed pane with a failed seal are three jobs. Ask how water leaves a sill on a wall that may have almost no overhang. An insert that leaves a rusted frame in place is a short peace. Full replacement has to meet a wall that may be thin and may be out of square.
If a claim is open, photograph the rusty hardware and the wet wall before anyone scrapes it shiny. Salt will keep working on whatever remains. Newer framed walls can hide a flange leak in a cavity for a while. Older single-wall boards show the water the same day. Do not let a glass order ignore that difference. The leeward rooms are not a reason to skip the wall that takes the trades.
Say how many openings, which walls face the trades, and whether the frames are rusted or the sills are soft. Name the town. Say single-wall if that is the wall you have. Have the deductible if a claim is open. A seized sash will not free itself. Call the number on this page.