OIBT inspection in Liddes
Received an inspection notice from DransGrid SA for a building in Liddes (Valais)? OIBT pro calculates your price online, books an ESTI-licensed inspector and sends the safety report to your grid operator.
Grid operator in Liddes
According to ElCom, the municipality's electricity grid is operated by DransGrid SA, which sends the periodic inspection notice and receives the safety report.
The building stock of Liddes
Liddes has 770 inhabitants (FSO, 2024). The federal census counts 389 residential buildings there: 281 single-family houses and 53 multi-family buildings. 78 % were built before 1981 and 174 before 1946: these installations have already been through at least one 20-year periodic inspection cycle, and the grid operator's next notice comes due regularly.
| Single-family houses | 281 |
| Multi-family buildings | 53 |
| Mixed-use buildings | 55 |
| Share built before 1981 | 78 % |
Sources: FSO, population statistics (STATPOP) and federal building census (structure by construction period).
Prices for the canton of Valais (-5 % compared with the national grid).
Frequently asked questions
Who sends the inspection notice in Liddes?
In Liddes, the periodic inspection notice is sent by DransGrid SA. It states the reference, the installation and the deadline. Photograph the letter in the assistant: we read these details automatically.
How soon can an inspection take place in Liddes?
Our inspectors cover Liddes and the whole canton of Valais. You pick a slot online, usually within 2 to 3 weeks; “optimal” slots (inspector already in the area) are cheaper.
Which buildings in Liddes are subject to periodic inspection?
Every building connected to the grid: in Liddes, the federal census counts 389 residential buildings (281 houses, 53 multi-family buildings), 78 % of them built before 1981. A dwelling is inspected every 20 years, business premises every 10 years (5 years for high-risk premises).
What is a periodic OIBT inspection?
The Swiss Low-Voltage Installations Ordinance (OIBT/NIV) requires owners to have their electrical installations inspected at regular intervals (20 years for housing, 10 or 5 years for commercial premises). The grid operator sends a notice; you appoint an independent inspection body which issues the safety certificate.
OIBT inspection pricing
| Detached house | CHF 425incl. VAT |
| Apartment | CHF 271incl. VAT |
| Apartment building | CHF 1257incl. VAT |
| Shop, office, restaurant, workshop | CHF 433incl. VAT |
| Farm | CHF 890incl. VAT |
| Industry, crafts, healthcare | CHF 890incl. VAT |