Cable and pipe management for concrete floor conversion

[CCoomber]

Hi I am currently considering converting my ground floor (suspended timber) into a solid insulated concrete floor for UF heating. The depth from the top of the joists to the bottom of the void (concrete) is 10" I already have a plan to tackle most of the conversion but I'm unsure about what to do with the pipes and cables currently in the void. I read somewhere that they have to be sealed into pipes before the concrete is laid?

Does anybody have experience or resources that can help to explain how it's done?
Or who I would call about getting it done?

Thanks in advance.