Caulking is a flexible sealant used to fill gaps around windows, doors, and trim. Sealed seams keep moisture and drafts out and give you clean lines for the paint that follows. It’s a small step, but it changes how an exterior paint job holds up over time.
Caulk also moves with the house. Denver’s temperature swings open and close seams all year, so we use flexible, paintable caulking that stretches instead of splitting. Fresh caulk before fresh paint is one of the easiest ways to make a finish last.