The plastic drain cleaners at home improvement stores with the Velcro tips work really well. They’re like 2’ long but in my experience cleaning the wife and kids long hair out of the bath drain has show that to be plenty.
The added fact that I have basically no hair on my head also makes be a tad bitter about always being the “handyman” guy of our family. :p
You’re paying for labor. If you’re the cheapest option retention will be poor, knowledge and experience will leave and your business will (and should) suffer.
Penny wise, pound foolish.