Has anyone hired a company to clean a pool enclosure or the screen on a porch?

I sprayed it with the bleach and jomax mixture, let sit for 5 min, brushed with a brush and hosed it off.

No. I’ve called 5 companies and no one will touch it. I’m tired of searching the internet

You can do it in 30 mins

Do you keep your pool chemicals balanced yourself, or do you hire someone to do it?

Bleach and ammonia will usually do the trick. You have to mix it indoors because the wind will mess up the reaction.