How would you do this?

customer asked me to power wash and stain his peaks… this is new to me…anyone have any suggestions? also gotta put a sealer on it when it’s all said and done…

I would stain it from a ladder with a good brush. You could spend the time to buy / rent / set up scaffold, but you can stain that tiny spot in no time by hand.

I agree with Rick, should be able to clean and stain relatively easy from a ladder. Be sure to protect the deck below from stain drips and I would also run plastic across the bottom of the peak to keep any stain that drips from landing on the siding.