Slide the front end of the pry bar between the trim and the building, then pry off the pieces of trim and underlying trim boards. [title] Use expanding foam to fill in wall gaps.
[header] How to replace an exterior window trim [title] Pry off the old trim with a pry bar. [step] To avoid damaging the wall, hold a wood block against it. Rest the back of the pry bar on the wood block.