Romandie Nord et Est

Your contacts

Stéphane Dépraz

Regional manager

Nathalie Raemy

Backoffice manager

Services in the region West Switzerland North and East

From our regional office in Echandens we provide the cantons Freiburg, Neuchâtel, Vaud and Valais with the following services: building cleaning, garden and site maintenance, technical maintenance and infrastructural services.


Indoor cleaning and care
Window and façade cleaning
Major cleaning
Construction site and building cleaning

Area & Plants

Landscaping maintenance
Paved area maintenance
Winter services
Indoor plants

Technics & Building

Technical building management
On-call technical services
Building maintenance / Building services
Health, Security, Safety & Environment (HSSE)

Infrastructure & Services

Reception and Helpdesk
Office support
Housekeeping and Catering
gammaRenax Ltd. | Supply and Disposal Services

gammaRenax SA
Rue des Artisans 6
1026 Echandens
Tel. +41 21 525 46 50

Opening hours:
08.00 – 12.00 Uhr
13.00 – 17.00 Uhr

Piquet number:
Tel. 0848 277 777



gammaRenax SA

Route des Arsenaux 9
1700 Fribourg
Tel. 026 555 02 00

Place du Midi 36
1951 Sion
Tel. 027 525 40 90