The visual, non-invasive boundary is the defining characteristic of a home inspection, and dismantling equipment sits outside it in every standard of practice. The reasons are practical as well as contractual. Opening sealed equipment risks damaging it and transfers responsibility for its subsequent operation to the inspector; it may void warranties; it frequently requires trade licensing the inspector does not hold; and it converts a survey of the whole house into a diagnostic of one appliance. Removing panels and covers designed to be removed for routine access — an electrical panel dead front, an access panel provided by the manufacturer — is a different thing and is normal practice. The client cannot expand the scope by asking, because the limit is not merely contractual; it reflects what the inspection is and what the inspector is qualified and insured to do.