How to choose an electrician in Switzerland: NIBT certifications, authorisations and cost factors

Electrical work is one of the most strictly regulated trades in Switzerland. Hiring an electrician without authorisation exposes you to serious risks: refusal to commission the installation, difficulties with your insurer in the event of a fire, and civil liability in the event of an accident. This guide sets out the certifications to check, the factors that make the cost of a job vary and the right questions to ask before hiring an electrician in French-speaking Switzerland.

The legal framework for electrical installations in Switzerland

The Federal Act on Electrical Installations (LIE)

The Federal Act on Electrical Installations (LIE, RS 734.0) and its implementing ordinances define who may carry out electrical work in Switzerland. The installation, modification and commissioning of fixed electrical installations are reserved to professionals holding an operating authorisation issued by the Federal Inspectorate for Heavy Current Installations (ESTI).

The NIBT standard (SEV 1000)

The NIBT (Low-Voltage Installation Standards), published under reference SEV 1000 by the Swiss Electrotechnical Association (Electrosuisse), is the reference technical code. It is updated periodically (last major revision: 2020) and sets the technical requirements for:

• Distribution boards and residual-current circuit breakers
• Cable cross-sections and installation methods
• Protection in bathrooms (wet zones)
• Earthing and equipotential bonding
• Solar photovoltaic installations and charging installations (EV charging stations)
• Installations in medical premises and in areas at risk of explosion

Any competent electrician must master the NIBT in force. Do not hesitate to ask your prospective contractor which edition they apply and how it affects your project.

The certifications to check with a Swiss electrician

ESTI authorisation: the absolute prerequisite

The ESTI (Federal Inspectorate for Heavy Current Installations) issues operating authorisations to electricians and electrical companies in Switzerland. There are several categories of authorisation:

• General authorisation: for all installations up to 1000 V. Reserved for electricians holding a federal certificate or a federal master’s diploma and practical experience.
• Limited authorisation: for restricted fields of application (lifts, solar installations, etc.)
• Company authorisation: issued to the company, with a technical manager holding an individual authorisation

You can consult the public register of authorised companies on the official ESTI website. It is a simple check that takes a few minutes and can spare you serious problems.

The CFC and professional qualifications

Swiss vocational training for electricians includes:

• CFC (Federal Certificate of Proficiency) as an installation electrician (4 years): the basic federal qualification. Allows work to be carried out under the supervision of a site manager holding the authorisation.
• Federal certificate for electrical foreman: allows the holder to run worksites and draw up safety reports.
• Federal diploma for master electrician: allows the holder to run a company and train apprentices.
• Electrical engineer (university of applied sciences or federal institute of technology): for complex projects, large industrial installations and electrical design studies.

Specialist certifications to know about

Depending on the type of work, specific certifications may be required:

• Solar installer (ASES / SWISSOLAR): for PV installations and solar thermal systems
• EV charging station (EVSE): certification recommended for electric vehicle charging installations (IEC 61851 standards)
• KNX home automation: for home automation installations and smart buildings
• AEAI (Association of Cantonal Fire Insurance Institutions): for fire protection systems, AEAI recognition is required in most cantons. Check this point if your project involves fire alarms or sprinklers.

What makes the cost of electrical work vary

The cost of an electrical job is not the same from one canton to another or from one project to another. Rather than relying on an average, understand the parameters that weigh on a quote.

Factors linked to the company and the location

• The canton and the municipality: overheads and wage levels differ between urban centres and outlying regions, which affects the hourly rate.
• The size of the company: a large business has higher overheads than a self-employed electrician, but can put more people on a complex job more quickly.
• The qualifications of the people on site: a master electrician does not bill like an installer working under supervision.
• Travel: the distance between the company and the worksite, as well as access (floors without a lift, difficult parking), influence the quote.

Factors linked to the worksite

• The condition of the existing installation: an old installation, without proper earthing or with an obsolete panel, often requires additional work to bring it up to standard.
• The accessibility of ducts and walls: drilling concrete, chasing into brick or running cables through a protected building does not involve the same effort as in a light partition.
• The number of points to create or move: sockets, switches, light fittings and dedicated circuits (oven, washing machine, charging station) multiply working time and materials.
• The desired level of equipment: standard or designer fittings, home automation, recessed lighting, a panel with spare capacity for future changes.
• The power and type of connection: a charging station or a photovoltaic installation may require reinforcing the rising main or an application to the network operator.

Items added to the quote

• Travel costs and small materials, when they are billed separately.
• VAT, to be checked according to whether the quote is presented excluding or including tax.
• Surcharges for emergencies, night or weekend call-outs and public holidays.
• The final inspection and the safety report, which are a line item in their own right.
• Administrative procedures with the network operator for special connections.

How to compare quotes

Ask each electrician for a detailed quote that separates labour, materials, travel and inspections. Check that the offers are based on the same scope: the same points to install, the same level of fittings, the same responsibility for finishing work and chases. A quote that is markedly lower than the others should prompt you to look for what it leaves out. For a specific job, favour a clear fixed-price description over hourly billing with no cap, and agree in writing on the procedure to follow if something unforeseen turns up during the work.

The 5 questions to ask before hiring an electrician

Before signing a quote, put these questions to your prospective electrician:

1. Do you hold a valid ESTI operating authorisation? Ask for the number and check it in the public ESTI register.
2. Will you provide a safety report at the end of the work? Without this document, your installation is not officially declared.
3. Do you use equipment that complies with Swiss standards? Electrical materials sold in Switzerland must meet the applicable requirements, and the conformity marking must be available to show.
4. What guarantees apply to the work? The warranty periods of the Code of Obligations (CO) apply; ask what the company provides in writing in addition, and under what conditions.
5. Are you covered by professional liability insurance? Ask for a certificate: it is essential in the event of damage resulting from a defect in the installation.

Electrical work and renovation: coordinating the works

In a full renovation project (bathroom, kitchen, whole apartment), electrical work is sequenced with plumbing and the finishing trades. The typical sequence:

1. Removal and protection of existing installations
2. Structural work and plumbing (chases, pipework)
3. Running cables and fitting boxes (before the chases are closed)
4. Finishing work (tiling, painting)
5. Connection of appliances and light fittings
6. Testing, commissioning and drawing up the safety report

Chases for electrical cables must be made before tiling or plastering: poor sequencing forces you to redo finishes. If you do not have a general contractor, appoint a works coordinator who will set the order in which the trades intervene and make sure each has free access to the site at the right time.

Preparing your quote request

The more precise your request, the more comparable the offers you receive. Before contacting electricians, gather the following information:

• The type of property (apartment, house, commercial premises), its approximate floor area and its year of construction.
• A description of the work you want: replacing the panel, new circuits, lighting, charging station, solar connection.
• Photos of the current panel and the areas concerned, if possible.
• Your scheduling constraints, in particular if the home is occupied during the work.
• Your expectations on finishes: who makes good the chases, the paintwork or the tiling after the intervention.

With these details, each professional can assess the situation without unpleasant surprises and give you a genuinely comparable quote. If you have any doubt about a proposal, do not hesitate to ask for written clarifications before committing.