Exterior timing depends on material
Wood siding usually needs attention sooner than fiber cement. Stucco, trim, shutters, porch ceilings, railings, and doors may age at different rates on the same house. Older brick homes with painted trim can still need exterior maintenance even when the brick itself is not being painted.
Interior timing depends on use
Bedrooms and formal rooms may last longer than kitchens, bathrooms, hallways, stair walls, kids rooms, rentals, and high-touch trim. Interior repaint timing is often driven by stains, scuffs, repairs, color changes, or turnover rather than a strict calendar.
Use service paths for next steps
For walls and trim, use /painting/interior-painting/. For siding, shutters, doors, porches, or trim, use /painting/exterior-painting/. You can also use /quote/ when you are ready to send details for local painter follow-up.