New water connection in the house for an external deep well pump

Hello,

I would like to retroactively connect an external deep well pump to my house for frost protection.
How do you make a new frost-proof water connection in a house where the floor slab rests on a backfilled basement?
The well pipe would run about 1 meter deep to the house, but how do you then get from the wall into the house and inside the house down to floor level?

I am grateful for any hints.
Best regards

Don't you have an external connection for the water.

The deep well pump is currently connected via a T-piece to an external water maintenance shaft, but I want to relocate the associated electronics (pressure regulator) into the house because I have groundwater layers in the shaft during winter. That is why I was thinking of a new water connection to the house...