ᐅ Pay for geothermal deep drilling immediately or after heating system inspection?

Created on: 27 Nov 2022 18:17
Z
ZwölfSieben
Hello,

I’m a bit confused about the best timing to pay the deep drilling company in order to avoid implicit acceptance.

Situation:
  • The deep drilling for the geothermal heat pump has been successfully completed, ball valve fittings installed in the technical room
  • Invoice has been received
  • Connection to the heating system and therefore testing whether the probes function properly will only be possible in a few weeks due to screed drying, heating system completion, etc.

What would be the best approach regarding payment?
  • Pay immediately with the risk that the warranty period starts without the heating installer being able to fully inspect, or
  • Pay a deposit of 80%, with the remaining 20% after acceptance
  • Any alternative suggestions?

Thank you very much!
Peter.
H
Harakiri
28 Nov 2022 12:38
Normally, the deep drilling should already have been tested by the manufacturer as part of the service – a pressure test using the contraction method, including a report. Sometimes, this test and report are also part of the requirements from the authorities for the drilling permit / planning permission. The test can even be carried out "on a greenfield site," even without a building shell.

If this test has been completed, then your drilling is all in order, and you can safely proceed with payment.