Specialized Construction Activities

Marti Tunnel AG 

Moosseedorf · Since 1992

Marti Tunnel AG undertakes tunnel construction projects with a focus on mechanical tunnel driving and conventional excavation. Services include operation of various TBM types (diameters 3.80–12.60 m), use of roadheaders, pipe‑screen and jetting methods, drill‑and‑blast techniques, and the production of precast tubbing segments for tunnelling and deep‑mining construction.

Marti Tunnel Management AG 

Moosseedorf · Since 2022

Marti Tunnel Management AG performs mechanical tunnel excavation and related works, including open TBM driving, shield TBM with segment lining, roadheader (TSM) excavation, pipe‑screen and jetting methods, and conventional drill‑and‑blast tunnelling. At its production site in Klus it manufactures precast tubbing segments for tunnelling and deep‑mining structures.

Michel Blétry AG 

Küttigen · Since 1979

Michel Blétry AG provides drilling and concrete separation services, including geothermal probe drilling (Erdsondenbohrung), groundwater and exploratory (sondier) drilling, well inspection and cleaning with camera surveys and pump tests, and concrete work such as core drilling, sawing and controlled concrete removal.

Q-Service AG 

Dübendorf · Since 2021

The core activity of Q-Service AG is water damage restoration, including leak detection, building drying, mold removal and house renovation, reconstruction and renovation, with a focus on remedying water damage and its consequences in real estate.

Sandstrahlwerk First AG 

Feusisberg · Since 2013

Sandstrahlwerk First AG provides corrosion protection, sandblasting and coating services. Its offerings include sandblasting with various abrasives, powder coating, thermal spray galvanizing, high-pressure water stripping (HDW 3000 bar), wet and special coatings, graffiti removal, color-mixing service, decontamination of pollutant- or asbestos-containing coatings (PCB, PAH, lead) and handling of large parts up to 55 tonnes.

Spenglerei Huber AG 

Zurich · Since 1987

The core activity of Spenglerei Huber AG is the execution of roofing work, in particular the manufacture and installation of roofs, lightning protection systems and gutters.

WEDERFENSTER.CH AG 

Balgach · Since 1954

The core activity of WEDERFENSTER.CH AG is the production and distribution of high-quality wood and wood-aluminum windows, including the creation of individual window solutions, window services, glass breakage and repair work.

Zurbuchen Bodenschutz GmbH 

Lippoldswilen · Since 2008

Zurbuchen Bodenschutz GmbH provides soil protection and recultivation services, including soil improvement, in‑situ biological remediation, deep loosening and sludge utilization. The company also carries out revegetation works (drone seeding, spray seeding/hydroseeding, erosion control) and operates an organic farm to test soil‑conserving practices and advise clients.

Zurbuchen Technik & Dienste AG 

Lippoldswilen · Since 2018

Zurbuchen Technik & Dienste AG provides soil protection, recultivation and greening services. Its activities include soil improvement, in‑situ biological remediation, sludge reutilization, deep loosening and mixed soil tillage, soil‑friendly logistics, and greening methods such as hydroseeding, drone seeding and concrete/vertical greening; the company also operates organic agricultural activities used for trials and cultivation.

Bautechnik Staub AG 

Hildisrieden · Since 2008

The core activity of Bautechnik Staub AG is the execution of base and joint work in the interior and exterior, particularly in the manufacture and assembly of baseboards made of various materials such as solid wood and aluminum, as well as in the execution of sealant joint work.

Birinci Projekt & Baumanagement GmbH 

St. Margrethen Sg · Since 2007

The core activity of Birinci Projekt & Baumanagement GmbH is the provision of services in the field of insulation and fire protection in the construction industry. This includes in particular: Technical insulation (cold, heating, steam and sanitary pipes, apparatus, equipment, container and valve insulation and cladding), thermal insulation (heat with rock wool or synthetic rubber), fire protection (approved fire-resistant insulation EI 30 to EI 120 with rock wool products), and ventilation and penetration insulation. The company offers these services as a general contractor or subcontractor and supports its customers in the planning, execution and settlement of construction projects.

Brönnimann Kran & Transport AG 

Seftigen · Since 2019

Brönnimann Kran & Transport AG provides crane and transport services as well as assembly work and special transports. The company operates cranes, telehandlers, forklifts and truck mixers to perform lifting and transport tasks for construction and installation projects.

Epp Tankrevisionen 

Erstfeld · Since 1999

The core activity of EPP Tankrevisionen is the cleaning, rehabilitation, repair and dismantling of heating oil, petrol, diesel and chemical tank systems, as well as the construction of new systems and pipeline construction for petrol stations. In addition, the company also offers services in the field of water protection, such as the rehabilitation of tank rooms using liquid plastic.

Fornax AG 

Derendingen · Since 1995

Fornax AG provides services in combustion, chimney and chute technologies, offering planning, supply and installation of fireplaces, stoves, pellet and storage heaters. Its portfolio also includes exhaust and chimney systems, chimney covers and laundry/refuse chute installations, using VKF‑approved products and technical consultation.

Hürlimann Bautenschutz AG 

Illnau · Since 2005

The core activity of Hürlimann Bautenschutz AG is the renovation of buildings, particularly in the areas of sealing, coating, concrete repairs, reinforcement, mold damage remediation and leak detection. The focus is on renovating residential and commercial buildings in the Zurich region and Eastern Switzerland.

Mister Rénov' Sàrl 

Coppet · Since 2023

The core activity of Mister Renov' SARL is the execution of renovation and construction projects, particularly in the following areas: * Roofing (Couverture): New construction, renovation, and repair of roofs, including the use of materials such as tiles, slate, and other roofing coverings. * Zinc work (Zinguerie): Installation and repair of gutters, downspouts, and other metal roof components. * Painting (Peinture): Interior and exterior painting of buildings. * Earthwork (Terrassement): Construction and renovation of terraces, gardens, and other outdoor facilities. * Insulation: Thermal and sound insulation of buildings, including the use of materials such as glass wool, rock wool, and polyurethane. * Installation of solar energy systems: Planning and installation of solar energy systems for private and commercial use. The company offers its services in the Lausanne, Geneva, and Coppet regions and caters to both private and commercial clients.

Origoni GmbH 

Büron · Since 2011

The core activity of Origoni GmbH is the manufacture, restoration and installation of various types of ovens, fireplaces and fireplaces, including antique tile stoves, tower ovens, standing ovens, chimneys, soapstone ovens, sandstone ovens and grill fireplaces. In addition, the company also offers services in the areas of restoration, infrared heating and mineral plaster coatings.

Poolteam GmbH 

Geiss · Since 2015

The core activity of Poolteam GmbH is the planning, construction, renovation and maintenance of swimming pools, as well as the sale of related products and accessories. This includes in particular: Pool construction: New construction of swimming pools in various materials such as polyester, polypropylene, concrete or with foil lining; Pool renovation: Complete or partial renovation of existing swimming pools, including replacement of pool liners, renewal of piping or optimization of pool technology; Sale of pool accessories: Offering products such as filter systems, dosing systems, salt electrolysis, pool covers, whirlpool products and other accessory parts; Maintenance and cleaning: Carrying out regular maintenance and cleaning work on swimming pools, including sand change and heating system maintenance.

Sarosa SA 

Sion · Since 1964

The core activity of Sarosa SA is the provision of services in the field of construction and renovation work, particularly in the areas of: Plâtrerie (plastering): manufacturing walls, ceilings and other building components from gypsum; Peinture (painting): painting and coating surfaces; Isolation (insulation): thermal, acoustic and fire protection measures in buildings; Plafonds (ceilings): manufacturing and installation of ceiling structures; Coupe-feu (fire protection): installation of fire protection measures in buildings. The company offers these services for new buildings, renovations and conversions, targeting private individuals, companies and institutions.

Seiler Storen AG 

Aesch Lu · Since 2009

Seiler Storen AG is a specialist company for sun, weather and insect protection systems. The company's core activity includes consulting, planning, production and installation of various products such as awnings, sun blinds, pergola awnings, glass patio roofs, slat blinds, roller shutters and insect protection systems.