How much does roof re-pointing, re-bedding & pressure clean for a single story house cost?

Heya all, When it comes to services where there is no standard price on display it's most of the times a rip off of money. I always see a wide range of price quotes from people doing the same work. My question is right now specific to roof preventative work and it's costs.

What has been your experience? Does it cost as high as 5000$? My roof is not even leaking right now. I just want to fix minor cracks and keep it in good condition.

Any inputs will be super helpful. Thank you so much.