Since 1979, Balzan & Immer Étanchéité SA has specialised in waterproofing and thermal insulation for flat roofs. Backed by recognised expertise, we have built up privileged relationships with suppliers of high-quality materials. We work exclusively with products that comply with European standards, which are stricter than those in force in Switzerland, guaranteeing durable, high-performance solutions. Our Services : • Advanced waterproofing systems • Effective thermal insulation • European-certified materials Choose the expertise of Balzan & Immer Étanchéité SA for a reliable, insulated roof. Contact us for a tailor-made assessment.

Virtech Energie Sàrl specialises in general electrical installations, including technical advice and studies in this field. General electrical installation High current electrical installations • Repairs • ITTO inspections • Electric vehicle terminal installations with cantonal subsidy • Lightning conductors • Solar installations • Maintenance and servicing of installations • Emergency lighting • Special installations (clean rooms, explosive rooms, etc.) Low current electrical installations • Home automation installations • Computer networks • Alarm systems • Video surveillance systems Consulting • Defining the client's present and future needs • Preparation of quotations • Creation of specifications for project managers • Follow-up of the construction site • Preparation of (electrical) bills of quantities • Optimisation of installations • Calculation of depreciation according to current consumption • Extension of your electrical network Building technology • Building automation • Building security • Replacement of a traditional water heater with a heat pump water heater • Replacement of your old radiators or electric storage tanks • Heat pumps • Solar installation • Thermal installation • Danfoss system for controlling your heating Translated with www.DeepL.com/Translator (free version)