Typically, it is very safe. Remember these people are professionals with integrity they must maintain. If someone were to steal your hardware, your data, etc… This would put them out of business essentially.

Age and Specs: A computer that's relatively new or has high specifications might be worth repairing. If your system meets your needs and the issue is fixable (like replacing a hard drive or upgrading RAM), repairs can extend its life at a fraction of the cost of a new machine.

On average, computer repairs can range anywhere from a few hours to 2-3 weeks – factors such as scheduling or part availability can make repairs take longer. Thankfully, there are services you can consider that can speed up the process.