Last year we purchase a house with pooI, looking for someone that help us with the maintenance of the pool and after searching on yelp and see the truck close to my house, so we decide to give him a try.
My husband is an engineers and constantly he was looking after the work to learn about the pool and the work he was doing
He start good first 2 days then he constantly change the date of the services and then start asking to replace some parts every time was about $100-$200 more to replace some part.
After some replacement the part was still broken he said that maybe was like that and he replace it again. Look suspicious too us
Then he ask for another replacement and we decide to take a look before he change it, after a week he came for change the part and charge $150. We decide to take a look after that and the part was never replace was the same we had before!
So be careful check your parts before and after!