Every Raleigh, NC window repair survey Argo carries out begins with the wood, because in this climate the wood is where a small fault becomes a large one. Argo's tech presses the sill, the sill nose, and the bottom rail before looking at anything else, since damp works into end grain long before the paint shows it. After that the sash is worked from top to bottom, the balance or cord checked, the muntins tested for looseness, and the glass examined for a failed seal or cracked glazing. Each finding is priced as its own line on the estimate. Where decay has spread past a single section and the frame no longer holds a sash square, the estimate says so and prices a new unit, rather than propping up a frame that will fail inside a season. Across Wake County the survey is free, and it is written down before anyone leaves the house.