All,

I recently had a shower leak, which required shutting off the main water supply to the entire house to fix.

That said I want to install shutoff valves on every plumbing branch in the basement. (Why they were already not installed is another question). :mad:

My plumbing is CPVC which I never dealt with before.

Can I go to Lowe's, buy a CPVC shutoff valve, cut my pipe, prime and glue in the new CPVC shutoff valve?

Or should I be concerned about something when dealing with CPVC?

Money is usually why they don't.
I would install good quality valves, cheap will not save money.
It's a good idea as you can deal with a plumbing problem and not lose all water.
I would turn off the breaker to the water heater, open faucets to allow water to drain and relieve pressure, install the valves, let set, then turn off all faucets, turn water back on, turn water heater back on. Check for leaks.

Can I go to Lowe's, buy a CPVC shutoff valve, cut my pipe, prime and glue in the new CPVC shutoff valve? Sure can! Just remember to purchase CPVC Cement.

I want to install shutoff valves on every plumbing branch in the basement. (Why they were already not installed is another question).
Code doesn't require stops on every branch. I live next to the Gulf and we have no basements in my area. All our pipes are under the slab and the manifolds are in the walls so we couldn't even if we wanted to. But I'm for anything that makes service easier. Good luck, Tom