OIBT inspection in Walchwil
Received an inspection notice from WWZ Energie AG for a building in Walchwil (Zug)? OIBT pro calculates your price online, books an ESTI-licensed inspector and sends the safety report to your grid operator.
Grid operator in Walchwil
According to ElCom, the municipality's electricity grid is operated by WWZ Energie AG, which sends the periodic inspection notice and receives the safety report.
The building stock of Walchwil
Walchwil has 3'995 inhabitants (FSO, 2024). The federal census counts 770 residential buildings there: 419 single-family houses and 231 multi-family buildings. 66 % were built before 1981 and 150 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 | 419 |
| Multi-family buildings | 231 |
| Mixed-use buildings | 120 |
| Share built before 1981 | 66 % |
Sources: FSO, population statistics (STATPOP) and federal building census (structure by construction period).
Prices for the canton of Zug (+10 % compared with the national grid).
Frequently asked questions
Who sends the inspection notice in Walchwil?
In Walchwil, the periodic inspection notice is sent by WWZ Energie AG. 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 Walchwil?
Our inspectors cover Walchwil and the whole canton of Zug. You pick a slot online, usually within 2 to 3 weeks; “optimal” slots (inspector already in the area) are cheaper.
Which buildings in Walchwil are subject to periodic inspection?
Every building connected to the grid: in Walchwil, the federal census counts 770 residential buildings (419 houses, 231 multi-family buildings), 66 % 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 492incl. VAT |
| Apartment | CHF 314incl. VAT |
| Apartment building | CHF 1455incl. VAT |
| Shop, office, restaurant, workshop | CHF 501incl. VAT |
| Farm | CHF 1031incl. VAT |
| Industry, crafts, healthcare | CHF 1031incl. VAT |
Neighbouring municipalities served by WWZ Energie AG
Baar · Cham · Hünenberg · Menzingen · Neuheim · Oberägeri · Risch · Unterägeri · Zug