Windows in Nashville fog in the humidity, leak when wind drives rain up a hill, and draft when ice finds the gaps in older wood. Bungalows in East Nashville and Sylvan Park may still have wood sashes or a tired insert. Newer infill uses tall units that fail at the flange or the seal. Hail and wind break glass. This is not salt corrosion and not a high-ridge winter. It is basin moisture with a real ice night and a storm season that shoves rain at the head of the window. Say fog, rot, or a break.
Ask if the frame stays. An insert on a solid sill is contained. An insert on a sill softened by condensate keeps the rot in the wall. Full-frame work should name the flashing and who restores casing inside and skin outside, especially on a tall narrow house where the opening is most of the facade. Ask who answers if water passes beside the unit. Wind on an exposed hill will test that joint. A sheltered bungalow street may only show you a failed seal. Do not use the same speech for both.
Count units before the call grows. One bath window is not a whole elevation of original sashes. Flaking paint on old wood gets mentioned before sanding. A single cracked lite in a true frame can remain glass. A racked frame after a limb cannot. Ask for whole-unit efficiency figures and treat them as a lab note. The attic and the system decide comfort on a basin afternoon. Hardware that will not stay up is a repair. Say that if that is all it is.
Houses stepping down a hill can have a downhill wall that takes the weather and an uphill wall that stays quiet. Say which wall leaks. Basement windows are their own leak, often grade and water rather than a failed sash. Mention them separately from the living-floor units. Infill glass on a zero-lot side is a different access problem from a bungalow bay. The city has both on the same afternoon.
Bring the count and the hill or the street. Windows in Nashville fail from humidity, wind-driven rain, and old wood, in a city that still ices. Call the number on this page.