Building Construction

Keller Hochbau AG 

Fahrweid · Since 1996

The core activity of Keller-Hochbau AG is building construction and renovation, including new construction, conversion, refurbishments, demolition work and construction services.

Köppel-Vogel AG 

Widnau · Since 1966

Krähenbühl Bau GmbH 

Oberburg · Since 1997

Krähenbühl Bau GmbH provides building and civil engineering services and operates a skip and waste-management service. Its activities include new construction, conversions and renovations, site and demolition works, slope and stream protection, and the rental of various container types plus transport and recycling services.

Kreuzer Bau AG 

Spiegel B. Bern · Since 1991

Kreuzer Bau AG is a construction company carrying out master-builder and ceramic work. Its services include renovations and conversions, kitchen and bathroom refurbishments, masonry works (retaining walls, stairs, garages), installation of ceramic and natural stone wall and floor coverings, insulation and sandstone repairs, and preparation of playground foundations according to SUVA standards.

Krieg Bau GmbH 

Buttikon Sz · Since 2022

The core activity of Krieg Bau GmbH is the execution of construction projects, particularly new buildings, renovations and extensions. The company offers services in the areas of planning, execution and construction management, and places emphasis on customer proximity, flexibility and a high level of quality awareness.

Kull + Loosli AG 

Zurich · Since 1980

Kull + Loosli AG is a company specializing in ceiling systems and ceiling coverings, providing planning, supply and installation of solutions such as acoustic ceiling sails, metal ceilings and mineral fibre ceilings. The company also performs plastering work, integrated lighting installations (including Loxone), ceiling insulation and acoustic wall systems.

Landwirtschaftliches Architekturbüro Bruno Bühlmann AG 

Ruswil · Since 1993

The core activity of Bruno Bühlmann AG is building planning and execution for various areas, including: residential construction (new builds and renovations), agriculture, commerce, and public buildings. The company offers comprehensive services from planning to execution and billing of construction projects.

Läser Bau GmbH 

Conters Im Prättigau · Since 2021

The core activity of Läser Bau GmbH is the provision of services in the construction sector, particularly in the areas of: building construction, civil engineering, renovations, conversions, transportation, excavation work, snow removal, and environmental work. The company thus offers a wide range of construction-related services and positions itself as a regional partner for construction projects in the Prättigau region and beyond.

Lenz Baugeschäft AG 

Uesslingen · Since 1991

The core activity of Lenz Baugeschäft AG is construction, particularly the execution of master builder works such as masonry, residential and agricultural buildings, as well as customer-specific masonry works.

Leo Hasler AG 

Warth · Since 1977

Leo Hasler AG is a construction company that carries out new builds, renovations, extensions and restorations. Its services include exposed-concrete swimming pools, site works (retaining walls, paving), façade and concrete repairs, demolition tasks and smaller repair jobs, with on-site consultation offered.

Macheret S. SA 

Ogens · Since 2013

Maesano AG 

Glis · Since 2010

The core activity of Maesano AG is construction and civil engineering, including new buildings, conversions, renovations, special works such as rubble stone walls, demolition and civil engineering works such as water pipes.

Ma maison bois Sàrl 

Haute-Nendaz · Since 2016

The core activity of Ma Maison Bois is the planning, design and construction of solid wood houses, with a focus on sustainability, ecology and energy efficiency.

Marti Bauunternehmung AG Luzern 

Lucerne · Since 1951

The core activity of Marti Zentralschweiz encompasses infrastructure construction, specifically: engineering construction, civil engineering, road construction, special foundation engineering, and renovation and building construction. The company thus provides services in the area of construction and renovation of infrastructure projects, such as roads, bridges, buildings and other structures.

Marty Bauleistungen AG 

Sennwald · Since 2018

Marty Bauleistungen AG is a construction company providing services in building construction, civil engineering, pipe jacking (trenchless drilling), pipeline construction and transport. The company executes utility and pipeline projects, including guided drilling and pipe-pushing techniques.

Marty Bauleistungen AG 

Azmoos · Since 1999

Marty Bauleistungen AG provides building and civil engineering services, including pipe jacking, pipeline construction and transport services.

Marvit GmbH 

Dietikon · Since 1996

Marvit GmbH is a construction firm specializing in natural-stone work such as facade construction, stair cladding, floor installation and the setting of concrete elements. It supplies natural stones including granite, marble and limestone and carries out stonework for bathrooms and kitchens.

Meichtry AG 

Rorschach · Since 2023

The core activity of Meichtry AG is the construction and execution of building projects, particularly in the areas of: customer-specific masonry work, facade renovations, conversions and extensions, and hazardous substance remediation. The company thus offers comprehensive services in the field of building construction and renovation.

Mentil & Maiorano AG, Bauunternehmung 

Liestal · Since 2016

The company is a construction company specializing in the planning and execution of construction projects. The core activities include: new buildings (single-family homes, multi-family homes), renovations and conversions, pipeline construction, sewer construction and renovations, demolition work, masonry (stone walls, concrete walls), Minergie buildings, crane work, and Stonesystem (a special type of masonry). The company also offers services such as construction management, yard and transportation.

Metronics GmbH 

Stettfurt · Since 2014

Metronics GmbH offers building planning, renovation and photovoltaic services. Its offerings include project and execution planning, renovation consulting, and the planning and support of photovoltaic installations.