Solar & Photovoltaics in
Niederuzwil

H. Lenz AG

Since 1993 · 11–20 empl.·4.6(28)

H. Lenz AG provides solar and building-technology services including consulting, planning, manufacturing, installation and maintenance of heating and solar systems. The company produces custom solar collectors and heating elements, supplies photovoltaic and solar-thermal systems, and represents Variotherm in Switzerland.

Lenz Heiner

Since 1988 · 11–20 empl.·4.6(28)

Lenz Heiner provides planning, supply, installation and maintenance of heating and solar systems, including custom-made solar collectors and heating rails. Offerings include photovoltaic and solar-thermal systems, heat pumps, floor/wall/ceiling heating solutions and technical after-sales support.

LENI Elektrotechnik GmbH

Since 2020 · 1–10 empl.

LENI Elektrotechnik GmbH provides electrical installations and related services, including residential electrical work, lighting solutions, photovoltaic systems, EV charging station installation and maintenance, smart home systems, and network technology.

Heatplan GmbH

Since 2021 · 1–10 empl.

The core activity of Heatplan GmbH consists of planning, consulting and project management of heating and solar systems, including the creation of energy reports and the application for funding requests. This includes in particular: * Heating planning (renewable and alternative energy systems) * Solar planning (solar thermal and photovoltaics) * Specialist construction management of heating and solar projects * Energy consulting * Project management * Application for building and funding requests. Heatplan GmbH offers these services primarily for single-family and multi-family homes (EFH & MFH).

FBE Bau GmbH

Since 2020 · 1–10 empl.

Solarwasch.ch Csaba Pók

Since 2025 · 1–10 empl.