Recovering files from drives that have failed, and setting up backups so the same thing is not a problem twice.
Having these ready usually means a faster answer and a more accurate quote.
No, and we will not pretend otherwise. Recovery depends on the nature of the failure and how much has been overwritten. We assess it honestly and tell you the odds before you commit to anything.
Yes. Every further read or write reduces the chance of recovery. If a drive is clicking or grinding, switch the computer off and bring it in.
It depends how much you would lose in a day. For most small businesses that is nightly, with a copy kept somewhere other than the office.