A termite inspection is really an inspector coming to your home and looking it all over for any signs of those pesky wood-destroying insects, which are also known as WDI and wood-destroying organisms which are also known as WDO.
It doesn't take your termite inspector too long to go over everything, usually just 30 - 45 minutes or so and they will be able to asses the seriousness of your problem and help you come up with some viable solutions that will meet your budget.
Take note that your free termite inspection make take a bit longer if you have a lot of clutter around your house that they will have to move to look behind. So cleaning up before the inspection is the best idea.
