Windows in Massachusetts are often original wood sash with storms, or a later vinyl unit set in an opening that was never square. On the coast, salt and sun chew the sill and the muntins. Inland, the complaint is a draft at the meeting rail and ice on the glass of a bathroom that never got a fan. Say which floor and which side of the house takes the weather.
A sash that will not stay up, a weight pocket full of debris, and glazing that has fallen out of the rabbet are three different fixes. Painting a rotten sill without cutting back to sound wood only hides the soft spot for a season. Storm windows that do not sit tight can trap moisture against the prime sash and rot it from the outside in. Look at the stool and the apron inside for stains.
Cape cottages and Berkshire farmhouses often have odd sizes. A stock unit that almost fits gets jammed into the opening and foams around, which is how you get a cold frame and a wet wall. Brick and stone openings in older town houses need a careful measurement, not a guess from a photo. Ask whether the trim is part of the work or whether the old casing stays.
Condensation between panes means the seal is gone. Condensation on the room side of a single pane may be a humidity problem from cooking, showers, or a damp cellar, not a failed window. That distinction matters before anyone talks about replacing the whole elevation. Note if the house is on a windy shore lot or tucked in a wooded inland street. The exposure changes what fails first.
Count the openings that stick, leak, or rot, and say whether you want them repaired or replaced. Mention storms, shutters, and any window well that fills with snow. Have a room in mind so the call is not a tour of every draft in a century of additions. Bring the town and the style of house. Call the number on this page.