Hello

I have some material/execution questions regarding my pictures below. I have two penetrations where I have extended the new drainage out into the crawl space, how and with what do I seal these two penetrations, the material in the wall is the same as the bricked-up window opening. I want to plaster the window opening smooth in connection with the renovation of the boiler room, how do I solve this most easily and with what material?

Thanks in advance!
 
  • Concrete wall with blockwork, showing cracks and a pipe above, needing advice on how to smooth render around a sealed window opening.
  • A pipe emerging from a rough-edged hole in a wall, related to queries about sealing wall penetrations and smoothing a bricked-up window for renovation.
  • A large grey pipe goes through a hole in a white-plastered wall near a ceiling, with some concrete visible around the pipe entrance.
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