Specialized Construction Activities

Kübler Rohrtrenntechnik GmbH 

Buttisholz · Since 2013

The core activity of Kübler Rohrtrenntechnik GmbH is the separation of pipes and pressure vessels made of various materials (cast iron, steel, stainless steel, fiber cement or plastic) with different coatings, particularly in the area of water, wastewater, gas and kerosene pipes, as well as the execution of longitudinal cuts. The separation is carried out both from the outside and from the inside using modern, proven and mature separation technology that enables fast, efficient and clean separation without damaging the inner lining, heat generation or the use of lubricants.

Kugelblitz AG 

Lömmenschwil · Since 2022

The core activity of KUGELBLITZ AG is the execution of underground treatments for soils, particularly through shot blasting, grinding, milling and stripping, in order to clean, smooth and roughen surfaces as well as remove old coatings and coverings.

Kupferschmid Anlagenbau AG 

Gretzenbach · Since 2008

The company's core activity is consulting, assembly and servicing of products related to gate technology, particularly in gate construction. This includes the sale and installation of garage doors, industrial doors, doors (interior and exterior doors, entrance doors, fire doors) and gate drives.

Kurmann & Partner Naturnah Bauen GmbH 

Giswil · Since 2010

The core activity of Kurmann & Partner Naturnah Bauen GmbH is the consulting and execution of building biology construction projects, particularly in the area of natural and health-promoting building methods. This includes the processing and distribution of natural building materials such as lime, clay and wood, as well as the production of lime products like lime plaster and lime glaze. The company also offers services such as consulting for the planning and execution of construction projects, the application of lime and clay plasters, and the production of special surfaces for wet cells.

Kurt Greber Restaurator SKR 

Zurich · Since 2019

The core activity of the company "Kurt Greber Restaurierungen bemalter Architektur" is the restoration and conservation of painted architecture, including the examination, analysis and treatment of damage to paint layers and substrates, as well as the restoration and reconstruction of paintings based on findings.

Küttel Felstechnik GmbH 

Weggis · Since 2010

Küttel Felstechnik GmbH performs stabilization and monitoring work on rock faces and unstable slopes. The company provides rock stabilization, rockfall protection (including nets), rock cleaning, installation of monitoring points, ramming soundings, specialist drilling (e.g., micropiles), fall-protection systems and rope-access specialist work.

LAM-IN BAU AG 

Mühlau · Since 2004

The core activity of Lam-In Bau AG is the manufacture and distribution of components and systems for window and door fittings, particularly slat blinds, roller shutters, motors and insect protection systems, as well as the processing of aluminum sheets.

Langenegger Ofenbau AG 

Hochdorf · Since 1999

The core activity of Langenegger Ofenbau AG includes the planning, consulting and execution of fireplaces and masonry, in particular: chimney systems and ovens, wood-fired cookstoves, tile stoves and their renovations, steel pipe chimney systems, and natural stone masonry. The company also offers 3D planning and consulting services and works closely with suppliers and partners.

Lario Energy CH SA 

Lugano · Since 2007

The core activity of Lario Energy is the development, manufacture and supply of ventilation and steam systems for the paper industry, including high-performance extraction systems, heat recovery systems, sheet stabilizers and other related systems and services.

L'art du béton ciré, Waeber 

Estavannens · Since 2020

The core activity of the company 'L'art du béton ciré' consists of providing services in the field of construction and renovation work, particularly in the areas of: painting (interior and exterior work), béton ciré (decorative concrete work), revêtements décoratifs (decorative wall and floor coverings), ravalement de façade (facade renovation), rénovation de salle de bain (bathroom renovation), transformation de garage en salle à manger (conversion of garages into living spaces), and crépi de terrasse (terrace cladding). The company also offers consulting services to support and realize customers' projects.

Laser Montage GmbH 

Cham · Since 2022

The company's core activity is the planning and execution of construction projects, particularly the installation of windows and doors, as well as the provision of construction services. The company delivers high-quality results through the use of state-of-the-art machinery and trained installation teams, with a focus on reliability, loyalty, and quality.

Lauber Haustechnik GmbH 

Zurich · Since 2015

The core activity of Lauber Haustechnik GmbH is the planning, installation and maintenance of building technology systems, particularly in the areas of heating, cooling and sanitary technology, with a focus on ecological and thermal solutions.

Layzell Engineering & Design AG 

Oberriet Sg · Since 2006

The core activity of Layzell Engineering & Design AG encompasses the provision of services in the construction sector, including: steel construction, facade construction, high-rise construction, architectural and engineering services, temporary work and personnel placement in the construction industry, and outsourcing of production lines. The company offers these services both nationally and internationally, with a focus on Switzerland, Europe, and the Middle East.

Leal Sàrl 

Chézard-St-Martin · Since 2015

The core activity of LEAL Sàrl is locksmithing and metal construction, particularly in the manufacture and installation of: roof trusses and roofs, verandas and winter gardens, windows and doors, metal stairs, fences and gates, as well as complementary services such as stair steps, garage doors, railings, glass grinding and polishing, glass cleaning, and high-altitude work with aerial lifts.

Lehmwerk ch Lehm- und Ökobau, Hübner und Dietrich 

Dornach · Since 2012

Lehmwerk ch Lehm- und Ökobau, Hübner und Dietrich manufactures clay building materials and supplies products for earth construction. Its range includes clay panels, clay bricks, clay base plasters and finish plasters, produced mainly from local raw materials with low energy input.

Leoni Gysi Sartori Ingegneria geotecnica geologia idrogeologia SA 

Sorengo · Since 1989

Leoni Gysi Sartori Ingegneria geotecnica geologia idrogeologia SA is an engineering and consultancy firm providing geotechnical, geological, hydrogeological and environmental geology services. Services listed include ground investigations and geotechnical reporting, design and project work for special deep foundations and slope stabilisations, laboratory analyses, hydrogeological testing and contaminated-site assessments.

LeoVita GmbH 

Wil Sg · Since 2014

The core activity of LeoVita GmbH is the planning, consulting, sales and installation of sun protection systems, in particular roller shutters, awnings, blinds, roller blinds, and similar products, as well as the repair and maintenance of these systems.

Liftakkord GmbH 

Wängi · Since 2016

The core activity of Liftakkord is to support other elevator companies in their daily work, particularly in cases of operational bottlenecks caused by a lack of personnel and an increased order volume. To this end, Liftakkord offers services such as bridging bottlenecks with an experienced team.

Lift UP Kran AG 

Mels · Since 2021

The core activity of Lift UP Kran AG is the execution of crane work and the rental of cranes and aerial lifts for various applications such as assembly, material handling, tree felling and maintenance work, as well as maintenance and service work.

Limann DRIP SA 

Fribourg · Since 2012

Limann DRIP SA provides renovation services for apartments, houses and administrative offices and undertakes work on new-build residential projects. The company also carries out peripheral insulation of walls and façades as well as full building insulation.