CG Service Systems France SAS


Incorporated in 1993, as Societe Nouvelle de Maintenance Transformateurs (Sonomatra), the Company was founded by the Lhommet family family. In 2008, the Company, became a part of the CG family.

The CG Group offers a full range of after-sales services. These are provided by CG Holdings Belgium's Services Division, alongwith its group service organizations in France, the United States, Saudi Arabia, Indonesia and Curaçao, to form a worldwide network. CG Service Systems France SAS Is a part of this network.

CG Service Systems France SAS is engaged in providing services of on-site maintenance/repair of power transformers & on-load tap changers, oil analysis, oil treatment and retrofilling.

The Company's services enjoys a good market reputation, and its client list consists of reputed names like EDF, RTE (France), Arcelor etc.

The Business of CG Service Systems France SAS forms an integral part of the Power Systems Strategic Business Unit of CG.



CG Service Systems France offers on-site inspections, diagnostics and maintenance activities. Whenever possible, refurbishment and repair of transformers also take place on-site, thus considerably limiting the downtime of the transformer. This can go as far as repairing the active part, rewinding and replacing the tap-changers. When site intervention is not an option, the Company's workshop is well equipped to handle the whole range of refurbishment activities and repairs in-house; including increasing the power capacity.



CG Service Systems France SAS
Parc d’Activité des Hautes Falaises
Avenue Jean York
F-76400 Saint Léonard

Tel : +33 2 35 10 31 57
Fax : +33 2 35 29 23 51


For more detailed product information and sales enquiry click here