What are the common types of surveys?

Pre-purchase Survey:
It is an important type of survey which is done usually prior to the purchase of a new or used boat. It is a detailed inspection that covers every detail affecting the condition of the boat and safety including a thorough evaluation of all onboard systems, structural integrity, extent of existing problems, suggestions for upgrades and needed repairs. It also includes close inspection of both in and out of the water and underway for a short trial run.

Insurance Survey:
This type of inspection is recommended by insurance companies when a vessel is acquired and at periodic intervals in order to ensure the amount of safe marine risk for coverage. Many aspects of the purchase inspection may include structural and systems analysis. Sea trials and hauling are basically performed on the request of the underwriters. Greater emphasis is placed on potentially hazardous flaws and safety features with less attention paid to cosmetics and minor repairs.