Cost of basic plumbing installation

Hi first of all I am new here And hope that I can find answers to my question here I and my girlfriend bought a house from 1966 and are in the process of renovating everything ourselves and with the help of friends I have now asked my acquaintance how expensive the rough installation (so from the water meter to the bathrooms without ceramics and furniture) will be approximately, when he told me between 8 and 10 thousand I was quite surprised About the current situation, I have removed all old pipes except for heating and made all core drills, now all wastewater and cold and hot water pipes are to be renewed all exposed because my acquaintance thinks putting them in the outer wall would be too dangerous regarding stability Light blue: bathroom on the first floor (bathtub left, shower upper right, toilet lower right) between shower and toilet a T is built in front of which the washbasin will be hung Orange: are the drain connections in the basement White: the guest WC is located on the ground floor Green: heating and main water connection Red: core drills from the very top to the basement In the entire bathroom a floor heating system will also be installed I hope I haven’t forgotten anything relevant if so just ask Cheers Gisi

Just went through that myself. The offers were between €35-50/m of pipe including 100% insulation (cold water 50% in the living area). Sewage was €20-30/m (including wall drilling, excluding chipping work in the old screed/floor slab).

Circulation pipe needed? Probably not for you.

Underfloor heating in renovation varies widely from €20-150/m2 (serpentines laid on construction-applied Wediplates up to capillary thin-layer systems with very expensive 1.5 cm screed).

What is the question?

If you are unsure about the costs, only a counteroffer from another company in your region will help you.

That's just how it is with existing properties. Everything is more expensive.

I have no companies working on my construction site; I do most of it myself, except for electrical and plumbing, which acquaintances are doing. I just wanted a general assessment of whether the price could be right, because I do find it somewhat a lot for so little pipe.