Mark which runs and door surrounds are included rather than describing the whole room as trim work. Profiles, corners and access can affect preparation. An approximate length and photographs help distinguish a small refresh from a larger renovation repaint.
Painting to a natural break may provide a clearer finish boundary than touching up several scattered spots. Whether that is useful depends on condition and matching expectations. Any extension of the paint area should be agreed before work begins.
Grooves and moulded corners can retain loose paint or dirt that affects adhesion. The profile should be visible in the enquiry photos. Preparation must stay within suitable non-hazardous methods and does not imply stripping unknown old coatings.
The agreed service covers small interior trim preparation and recoating after substrate suitability review. Exclusions: Structural timber repair, hazardous coating removal, external window restoration, large renovation repaint.