​I think I’ve found the local business marketing hack

My friend owns a tree-service business and was explaining that he pays 40 dollars per lead on thumbtack and he wishes he could get more organic traffic. I helped him out a bit by making a website and improved his google business listing, (he didnt have anything on there but basic info like phone number and hours of operation). Did a few more improvements and now he is getting 5-10 calls a day purely from the site and google. he is now ranked 2nd in his local area. I think I should start a business out of this and sell to local businesses since he has seen so much success.

what do you guys think ?

The company is based in Chesapeake if anyone is wondering.