Building Maintenance

Walliser Bauservice GmbH 

Egnach · Since 2023

The core activity of Walliser Bauservice GmbH encompasses the provision of services in the following areas: painting and plastering, building maintenance and cleaning, as well as relocation services. The company thus offers a wide range of construction services focusing on the maintenance and care of properties, as well as relocation services.

Walser Umbau Inh. Aeschlimann 

Thun · Since 2020

The core activity of Walser Umbau is the renovation of buildings, both in the interior and exterior areas.

Walter Bedachungen AG 

Gossau Zh · Since 1975

Walter Bedachungen AG provides roofing and roof repair services, including inspections, gutter cleaning, moss removal, and installation and servicing of Velux roof windows. It also offers insulation and façade cladding (wood, aluminium, Eternit) and carries out conversion and renovation work such as roof window installation, dormers, attic conversions and timber constructions.

Walter Kälin Holzbau AG 

Hinwil · Since 1997

The core activity of Walter Kälin Holzbau AG is timber construction, particularly the new construction, renovation and refurbishment of buildings with wood, as well as the manufacture of wooden frames and the installation of solar systems.

Wan-Jet AG 

Weinfelden · Since 1988

Wan-Jet AG provides building protection services including waterproofing, injections, concrete repair, structural reinforcement and coatings. The company also performs high‑pressure water jetting for surface preparation, concrete removal and industrial cleaning.

Wanzenried Fassaden AG 

Weinfelden · Since 2001

The core activity of the Wanzenried Group encompasses real estate construction, building protection, water jetting, facade construction and panel construction. The company offers a wide range of services in the construction sector, including planning, execution and maintenance of construction projects.

WASERWERK Cyriaque Waser 

Lucerne · Since 2020

The core activity of WASERWERK encompasses three main areas: 1. **Renovation**: The company offers services for demanding interior renovations, particularly in the field of tile laying. 2. **Handyman**: WASERWERK provides a comprehensive service for minor repairs, installations, and other manual work. 3. **Co-Working Space**: The company rents out office, workshop, and rehearsal spaces in Littau, offering customers creative possibilities for their work or hobbies. These three areas form the core activities of WASERWERK.

Wasserhahn Sicherheitstechnik GmbH 

Wallisellen · Since 2012

The core activity of Wasserhahn Sicherheitstechnik GmbH is the development and distribution of leak detection devices and safety technology for the prevention of water damage in residential buildings, industrial facilities and commercial properties.

Wasser Protec GmbH 

Volketswil · Since 2020

The core activity of Wasserprotec is leak detection, water damage restoration and drying of insulation, particularly in the case of water damage to buildings and apartments. The company offers a comprehensive service that ranges from initial communication to the execution of services and aftercare, with the goal of achieving customer satisfaction through professional, reliable and rapid solutions.

was&wie GmbH 

Alpnach Dorf · Since 2008

The core activity of the company "was&wie" encompasses the following areas: * Ventilation cleaning * Chimney sweeping * Pellet heating * Emission measurement Thus, the company offers services in the field of building technology and energy optimization, particularly in connection with heating systems and ventilation technology.

W. Benoit SA 

Geneva · Since 1972

The core activity of Benoit W. SA is the renovation and maintenance of heating systems, renewable energy systems, such as solar installations, heat pumps and pellet heating systems, as well as 24-hour emergency repair services.

Weishaupt Storenservice GmbH 

St. Gallen · Since 2022

The core activity of Weishaupt Storenservice GmbH is the distribution, installation and repair of all types of shading systems, particularly roller shutters and awnings.

Weishaupt Montagen 

St. Gallen · Since 2008

The core activity of the company 'Der Fenstermann' is the manufacture, installation and maintenance of windows as well as the provision of carpentry services in the field of windows and window shutters.

Weiss Bau & Beratung AG 

Baar · Since 2024

The core activity of Weiss Bau & Beratung AG encompasses the realization of new and renovation projects, particularly in the area of roofs and facades, including: carpentry (all types of work), roofing (pitched and flat roofs), sheet metal work (all types of work), leak detection and building drying (especially for flat roofs), construction management and consulting (for renovation and renovation projects in the area of roofs and facades). The company thus offers comprehensive services for the planning, execution and maintenance of roofs and facades.

WERESA AG 

Fiesch · Since 2012

The core activity of WERESA includes the renovation, refurbishment, conversion and new construction of real estate, in particular holiday apartments and chalets, as well as property management and the provision of services in the field of roofing and sheet metal work.

WERK - idee Andreas Herz 

Kreuzlingen · Since 2013

The core activity of WERK idee Andreas Herz is the execution of construction projects in the field of building renovation and refurbishment, including old building renovation, construction management, carpentry, kitchen construction, modernization and planning.

Werner Schneider AG 

Landquart · Since 1981

The core activity of Werner Schneider AG is the provision of services in the field of high-rise and industrial construction, particularly the planning, design and execution of construction projects, including new construction, renovation and refurbishment of buildings, as well as the rental and sale of properties.

Werner & Werner Bauhandwerk GmbH 

Langenthal · Since 1998

Werner & Werner Bauhandwerk GmbH is a construction trades company offering masonry, plastering and tiling services as well as Naturofloor flooring. The firm carries out exposed masonry, interior finishing, glass-block walls, curved surfaces, custom fabrications and repair or water-damage interventions.

Wernli Handwerk GmbH 

Densbüren · Since 2019

The core activity of Wernli Handwerk GmbH is the provision of services in the field of sanitary and heating installations.

Werren & FlickBau AG 

Lenk Im Simmental · Since 1970

Werren & FlickBau AG is a construction company offering new builds, conversions and renovations as well as masonry, plastering and tiling services. The firm also provides landscaping, transport, snow-clearing and a skip (Mulden) service, coordinating work across trades.