Windows in Michigan face a long cold and then a humid summer. Old glass streams on a bitter morning, and the water sits on the stool until it stains or freezes. A failed seal fogs the space between panes and stays cloudy after the day warms. Wind off the lakes pushes through the meeting rail. A cold room beside a working furnace often means the opening, not the burner.
Older Michigan houses often still have wood double-hung windows and a storm panel that rattles. Newer rooms may hold vinyl that has hazed or lost a lock. An insert in a soft frame leaves the rot in the wall. Opening the full frame matters when the sill is mush and is needless when the wood is sound. Say what the sill feels like under a thumbnail.
Painted-shut sashes and tired balances show up in houses that have stayed closed for years. Forcing them cracks the rail. Some hardware can be repaired when the glass is clear and the frame is solid. Fogged glass can mean a sash swap instead of a whole new opening. In older painted wood, chalking paint should stay contained, not sanded through the room. Say so when you call.
Summer humidity shows the same failed seal that winter only made cold. A bedroom over a porch often has the worst sill, because the roof below keeps the wood wet. Lakeside walls take driven rain that inland walls miss. Ask how the sill is flashed and what fills the gap around the frame. Interior trim and an outside cap are part of the job.
Count the openings that actually fail, not every window on the house, and name the town. Cold glass in the snow belt is not the same call as a swollen sash in a humid southern county. Call the number on this page.