A licensed pest control company does termite inspections on a manufactured or mobile home, the same as on any house — and lenders often require one before closing on a home with land.
Short answer: The inspector looks at the piers, the skirting line, the belly wrap, the floor joists from below and the wood the home touches — steps, decks, porches and skirting framing. A manufactured home sits off the ground on piers, which helps, but wooden steps and decks that touch the soil, skirting with a wood frame, and a damp crawl space give termites a path. Treatment is the same as for a house; prevention is keeping wood off the ground and the crawl space dry. Mice and insects come in where the plumbing and ducts pass through the floor, and sealing those penetrations is most of the fix.
Reviewed by a manufactured home setup contractor and dealer.