Instead of using a ladder to inspect parts of a home, insurance claims adjusters are instead turning to drones.

They’re easy to use and safer for insurance employees. And drone inspections take less time than a physical inspection, potentially shortening the entire claims process, according to consumer finance website NerdWallet.

However, drone inspections may not reveal subtle damage apparent from a physical inspection. Also, drones can’t fly near airports and military bases, they must stay within the operator’s sight, and permission must be obtained for any area they fly above.

Allstate, USAA, Farmers Insurance, and Travelers have used drones for inspections, and a number of other insurance companies are evaluating the use of drones or are planning to expand their use.