BLS workshops

Spiez workshop overhaul

The construction work on the Spiez workshop was completed on 6 December 2019. The work was carried out over the course of two years while operations continued uninterrupted.

What work has been done?

The workshop in Spiez was in poor structural condition. Part of the old workshop was replaced with a larger, modern hall. It is 145 metres long and 38 metres wide. The building is made of steel with prefabricated façade elements. The new building offers sufficient space for servicing the 105-metre-long trains. The old washing facility has been replaced by a modern, environmentally friendly one. The track connections, workshop rail network including points, traction-power and safety systems were also upgraded. The workshop continued to operate during the reconstruction phase. Heavy-duty maintenance work was transferred to the workshop at Bönigen, where it will continue to be performed in future.

In Spiez, BLS services its passenger trains, locomotives and construction vehicles. The work includes:

  • Vehicle cleaning
  • Repairs to doors, air-conditioning units, radiators and lighting
  • Wheel inspections

From 2025 onwards, BLS trains will be serviced at the three sites in Spiez, Bönigen and Chliforst Nord. Around 440 employees ensure that BLS always has enough clean and operational trains at the ready for its customers.

Project aims

  • Ensuring light vehicle servicing on the eastern section of the S-Bahn Bern network.
  • Take-over of the work of the Bern Aebimatt workshop, which BLS will no longer be able to use to maintain trains and locomotives as of the end of 2019.
  • The overhauled workshop will allow the new BLS fleet, comprising 105-metre-long trains, to be serviced.
  • The modernisation of the facility allows for more efficient servicing of the vehicles.
  • The facility has been brought up to speed in terms of fire and occupational safety.
  • Modernising the login training centre.

Key figures

  • November 2017 Construction gets under way
  • end of 2019 Completion
  • CHF 90 million Total cost


  • Construction gets under way Nov. 2017
  • Building H: Refurbishment/modernisation Nov. 2017 – spring 2018
  • Building A: Roof, track extension, equipment Nov. 2017 – summer 2018
  • Building P and Q: Demolition Spring 2018
  • Building P and Q: Construction of new building Summer 2018 – summer 2019
Medienmitteilung 07.11.2017
Die BLS beginnt Ende 2017 mit dem Umbau der Werkstätten Spiez

Ab Ende Jahr modernisiert die BLS ihre Werkstätten in Spiez und sichert damit auch in Zukunft eine effiziente Instandhaltung der Züge. Das Bundesamt für Verkehr hat den Um- und Ausbau im September bewilligt. Mit einem Spatenstich hat die BLS heute den Startschuss für das zwei Jahre dauernde Bauprojekt gegeben.

BLS workshops
Why new workshops are needed
BLS workshops
BLS needs a workshop within the Bern region
BLS workshops
Reconstruction and expansion of the Bönigen workshop

BLS is expanding its Bönigen workshop until 2027. The workshop is being comprehensively renovated and modernised.

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