There are some computer programs that will allow you to scan them and do a lot yourself. My wife has scanned thousands of family photos and have them stored on a separate hard drive. Many have been touched up and look pretty good.
Once on your hard drive you can download to a SD card and have any size prints made you want.
One of my dad during WW-2 that she worked on and saved. We had 3-4 copies made in 8X10 and framed for family.