The market is broken down into:

1/ A basic service called "multiservices".

2/ A possible additional PSE 1 service concerning heating installations / DHW

individual and corresponding ventilation systems, CIC and calosat modules.

3/ A possible additional PSE 2 service concerning controlled mechanical ventilation

single and double flow.

3/ A possible additional service PSE 3 concerning the inventory of fixtures of exit.

cf article II.1.4)