The apartments, premises and common areas of your condominium (PPE) — corridors, cellar, car park, laundry room, lift — must be inspected periodically under the OIBT (the Swiss Low-Voltage Installations Ordinance). The co-owners decide, the co-owners pay. We give you everything you need for the item to pass at the meeting without an endless debate.
Building switchboard, common areas, car park, lift, shelter: the condominium owes the inspection, through shared charges according to the allocation key.
The inside of each apartment is the responsibility of the unit's owner.
If there is an incident, the first question will be: was the inspection up to date?
A condominium's problem is not technical, it is democratic: some time passes between the grid operator's letter and the vote at the general meeting. A standard quote expires before the vote. Ours does not.
A one-page A4 voting sheet: what the inspection is, why it is mandatory (SR 734.27), who does it, how much, when.
A quote by item — common areas, car park, lift, shelter, apartments, premises — with the price locked in writing for 12 months. Grouped offer possible (prices fall with volume).
Coordination with the caretaker or person in charge included. Safety report sent to the grid operator, with a copy for the condominium's records.
Each part of the building has its own interval, depending on its use.
| Installation | Interval |
|---|---|
| Residential common areas (corridors, cellar, laundry room) | 20 years |
| Underground car park, technical rooms depending on use | 10 or 20 years |
| Ground-floor shop unit (if the condominium owns one) | 10 years |
| Residential units (inside the apartments) | 20 years |
| SH3 installations — earthing through the neutral, without a separate protective conductor | 5 years, whatever the use |
SH3 (Schéma III): old wiring where earthing runs through the neutral conductor. A single cable in SH3 moves the whole installation to a 5-year interval. An SH3 installation can only be approved once more: at the next inspection, conversion to TN-S is required. What this means.
The voting sheet, the agenda wording, answers to the meeting's questions and a template for the minutes of the decision.
Get the general-meeting kitInspecting the common areas is a shared charge of the condominium, split according to the usual allocation key.
The legal obligation remains. The grid operator sends reminders, then passes the file to the Federal Inspectorate (ESTI), which sets a final deadline with a fee of CHF 700 charged to the co-owners.
For a small building, the flat rate for an OIBT inspection of the common areas only is CHF 320 incl. VAT.
When we inspect several apartments at the same time, the common areas are free (from 3 apartments).
Otherwise the quote is broken down by item. Issued within 5 working days based on the address and number of units — and guaranteed for 12 months in writing.
No, never. We are an independent ESTI-accredited inspection body (K-284772-1): the law forbids us from carrying out the work we inspect.