Specialized Construction Activities

DNT Project Sàrl 

St-Cergue · Since 2018

Swiss Fermetures Fenêtres et Portes SA 

Gland · Since 2018

Swiss Fermetures Fenêtres et Portes SA is a company that supplies and installs windows and entrance doors. Its product range includes PVC, wood and aluminium windows and doors, sliding glazing and aluminium shutters, and it provides project advice, quotations and maintenance contracts.

Alpsteintor AG 

Arnegg · Since 2014

Alpsteintor AG supplies and installs gate systems and access-control / barrier solutions for private and industrial clients, providing on-site consultation, planning and commissioning. The company also carries out maintenance and repair work and operates a 24/7 emergency service.

Alpsteinzaun AG 

Arnegg · Since 2005

Alpsteinzaun AG designs, manufactures, installs and services fences, railings and gates, and provides on-site consultation and planning. Their products and services cover home & garden, animal husbandry and industrial/safety applications.

Uninorm Technic AG 

Boswil · Since 1995

Uninorm Technic AG supplies metal carports, prefabricated garages (concrete and metal), garage doors and related products such as equipment sheds, enclosures and bicycle shelters. The company provides consultation, online configurators, garage-door service, accessories and planning and installation support for projects.

Pfaff Fertiggaragen AG 

Wil Sg · Since 1984

The company is active in the manufacture and distribution of garages, focusing on the development and adaptation of products to technological progress and the spirit of the times. In addition, the company offers garage-related services, including a perfectly organized service to make life as pleasant as possible for customers.

FRB Frères Sàrl 

Eclépens · Since 2019

The core activity of FRB Frères is the provision of services in the field of sanitary and heating technology, as well as building renovation. This includes in particular the installation, maintenance and repair of heating systems, sanitary facilities, heat pumps and thermal solar panels. The company also offers comprehensive renovation services, including planning, coordination and execution of renovation projects.

König Storen GmbH 

Zurich · Since 2022

The core activity of König Storen GmbH is the consulting, installation, repair and servicing of various types of shutters and roller blinds, including slat shutters, roller blinds, sunshade fabrics, sun blinds, folding shutters, security folding shutters, insect screens and roll-slat shutters.

Badipool GmbH 

Widnau · Since 2011

The company's core activity is the construction of swimming pools, including planning, consulting, installation and maintenance of swimming pools.

Stores Chablais SA 

Aigle · Since 2018

The core activity of Stores Chablais is the design, installation and repair of various types of awnings, window and facade systems, garage doors and other products for indoor and outdoor areas, with the aim of providing customers with protection from sunlight, weather conditions and unwanted views.

Poly-Constructions Sàrl 

Moudon · Since 2023

The core activity of Poly-Constructions Sàrl is to provide services in the construction industry, particularly in the following areas: masonry (e.g. building walls, foundations, roofs), exterior design (e.g. building terraces, stairs, fences, pergolas), waterproofing (e.g. sealing roofs, balconies, terraces), custom pool construction, and construction of car shelters (garages and carports). The company thus offers a wide range of services in the construction industry, from planning to execution of construction projects.

Hein Ambientefeuer 

Buochs · Since 2018

Hein Ambientefeuer provides chimney renovation services and supplies and installs heating cassettes and chimney accessories. The company manages projects from consultation through installation and offers on-site assessments without obligation.

Hein Feuerkonzepte GmbH 

Buochs · Since 2012

Hein Feuerkonzepte GmbH is a specialist firm for fireplace (cheminée) renovation, offering refurbishment work, supply and installation of heating inserts (Heizkassetten) and related accessories. The company provides on‑site consultations and combines traditional craftsmanship with technical solutions.

Dobler-Bautenschutz AG 

Schinznach Dorf · Since 2003

The core activity of Dobler-Bautenschutz AG is the provision of services in the field of building protection, particularly in the renovation and maintenance of buildings. This includes, among other things: injections against moisture and water, joint seals and basement waterproofing, mold and dry rot remediation, concrete renovation and liquid plastic, crack repair and old building renovation, monument preservation and historic plastering, facade renovation and balcony, terrace and conservatory renovation, vaulted cellar renovation and mineral interior insulation, rubble stone masonry renovation and painting and plastering work, tile laying and joint renovation, building expertise and expert opinions, mold testing and thermography, damage analysis and DNA analysis, building physics and chemical analysis, fogging technology and cold fogging, room and surface disinfection, air duct and cavity renovation, and radon remediation. The company thus offers a comprehensive range of services to protect, renovate and maintain buildings.

Pro G Travaux Sàrl 

Villars-Sur-Glâne · Since 2023

Alizé Piscine Service Sàrl 

La Sarraz · Since 2001

Alizé Piscine Service Sàrl provides construction, renovation and maintenance services for swimming pools, spas and saunas. The company operates technicians for on-site interventions, a repair workshop and a retail shop offering water analysis, equipment, spare parts and after-sales/maintenance services.

Aqua Sentio GmbH 

Obergerlafingen · Since 2020

The core activity of Aqua Sentio GmbH is the planning, sale and installation of swimming pools, whirlpools, swim spas, pergolas, garden furniture (IKONO) and barbecue systems, as well as the performance of service and repair work for these products.

Poolnow GmbH 

Oberbuchsiten · Since 2015

The core activity of poolNOW GmbH is the planning, consulting, sales and delivery of swimming pools, pools, whirlpools, saunas and related accessories. The company offers a wide range of products, including various pool and whirlpool models, saunas, above-ground pools, pool technology and accessories. It supports customers in realizing their individual pool and wellness dreams and offers a comprehensive service, including consulting and sales.

Prologis S.à r.l. 

Oron-La-Ville · Since 1997

Prologis S.à r.l. is a general construction company for residential buildings, delivering turnkey single-family homes, multi-unit buildings, neighborhood developments and renovation projects. Services include project budgeting and financing support, architectural and material advice, construction supervision, and related services such as real-estate brokerage and land valorization.

TV-Vidéo Canal SA 

Sion · Since 1984

TV-Vidéo Canal SA carries out video inspections of pipelines and related services such as network detection, smoke testing, and leak/pressure tests. Deliverables include photo and video documentation on USB or external hard drive and reports in Wincan VX format in accordance with VSA guidelines and SN EN 13508-2.

VIDESA SA 

Sion · Since 1966

VIDESA SA provides drainage and sanitation services, including sewer cleaning, unclogging and emptying operations as well as specialised works. Its services also include building maintenance offerings, mobile toilet rental, CCTV pipe inspection and a treatment centre for sludge and road sweepings.

dormakaba Schweiz AG 

Wetzikon Zh · Since 1974

dormakaba Schweiz AG supplies door and access systems, including automatic doors, mechanical locks, high-security locks, and access and time-management solutions. The company also provides planning, installation and maintenance services and a cloud-based access management solution (resivo).

Huber + Trottmann AG 

Muri Ag · Since 1983

The company Huber + Trottmann AG is a service provider specializing in the planning, execution, and commissioning of building technology, sanitary, and heating systems. The core activities include: Sanitary: new construction, renovation, and modernization of sanitary facilities; Heating: planning and installation of heating systems; Ventilation: planning and installation of ventilation systems for a comfortable indoor climate; Solar: installation of solar systems. The company also offers service and maintenance services for these systems.

Air-Ventil SA 

Romanel-Sur-Lausanne · Since 2009

Air-Ventil SA manufactures ventilation ducts, producing standardized spiral tubes and custom rectangular ducts. The company supplies a product catalogue and installation materials and works with galvanized steel, stainless steel, aluminium, copper and zinc‑titanium.

Meier Fenster GmbH 

Villmergen · Since 2009

Steiner - Storen - Tore - Türen - Fenster AG 

Gossau Sg · Since 1999

The core activity of Steiner Storen Tore Türen Fenster AG is the consulting, planning, manufacturing and installation of sun and weather protection systems, gates, doors and windows for building envelopes. The company also offers repair and maintenance services and operates two showrooms where customers can inspect the products and receive expert advice.

SIMONS ZÄUNE GmbH 

Au Sg · Since 2010

The core activity of Simons Zäune is the planning, manufacturing and installation of fences, privacy screens, gates, doors, stone walls and wrought iron works for private and commercial customers.

Laurent Membrez S.A., succursale de Loveresse 

Loveresse · Since 2010

Laurent Membrez S.A., succursale de Loveresse is a company providing railway track, civil engineering and rail engineering services. Its activities include track renewal and maintenance, mechanized equipment and machine hire, construction of concrete and civil engineering structures, site protection, project management and engineering studies.

Laurent Membrez SA, succursale de Delémont 

Delémont · Since 1971

Laurent Membrez SA, succursale de Delémont is a construction company providing railway-track works, civil engineering and rail-engineering services. Its activities include project design and execution, provision of specialized machinery and personnel, track maintenance and renewal, construction of concrete structures, and site protection services.

Nima GmbH Wellnesspools.ch 

Grenchen · Since 2022

Nima GmbH, operating under the brand Wellnesspools.ch, specializes in the sale and consulting of whirlpools, swim spas, saunas, and other products for the wellness and leisure sector. They also offer related services such as planning, implementation, and maintenance.

Bohrfix Erdsonden AG 

Dällikon · Since 2021

The core activity of Bohrfix Erdsonden AG is earth probing and the use of heat pumps in the field of shallow geothermal energy. The company offers a comprehensive service for drilling and heat pump installation to enable a sustainable and independent heating solution.

Erni Agrar AG 

Schongau · Since 2022

Erni Agrar AG designs and manufactures wooden covers for open slurry storage used in agriculture. The self-supporting covers reduce ammonia emissions, can be installed on concrete and enamel silos, use Swiss timber and sheet metal, and allow quick assembly as well as options for rainwater harvesting and PV installation.

Andreoli AG 

Volketswil · Since 1974

Andreoli AG is a coating workshop offering industrial surface pre-treatment and finishing services such as sandblasting, chemical pre-treatment, powder coating and wet painting. The company also provides spray galvanizing, laser cleaning, disassembly/assembly, transport and marking, and advises on colour standards and functional coating systems (e.g. heat‑resistant, anti‑slip, anti‑graffiti, conductive or insulating coatings).

ElektroLife AG 

Urdorf · Since 2014

ElektroLife AG is an electrical company providing electrical installations, switchgear and engineering services including planning, consulting and inspections for residential, commercial and industrial projects. Its services also include photovoltaic systems, e‑mobility charging infrastructure, building automation, IT services (eLife solutions), service and maintenance, and switchgear manufacturing.

ElektroLife Nordwestschweiz AG 

Muttenz · Since 2024

ElektroLife Nordwestschweiz AG is an electrical services company offering electrical installations, switchgear, photovoltaic systems, e‑mobility charging solutions, building automation, and maintenance services. The company also provides consulting, inspection/control of electrical installations, IT/datacenter services and training through its eLife Academy.

ElektroLife Zentralschweiz AG 

Zug · Since 2021

ElektroLife Zentralschweiz AG provides electrical installation services and offers switchgear, photovoltaic systems, building automation, e‑mobility solutions, inspections, and maintenance.

ElektroLife Ostschweiz AG 

Kemptthal · Since 2021

ElektroLife Ostschweiz AG provides electrical installation services including switchgear, photovoltaic systems, e‑mobility charging infrastructure, building automation and maintenance. The company also offers consulting, inspection services, IT services via eLife solutions and training through the eLife Academy.

eLife solutions ag 

Urdorf · Since 2022

eLife solutions ag provides IT and building automation services, including hybrid and cloud solutions (Microsoft 365, Exchange Online, SharePoint, Teams, Azure Active Directory) as well as network and security services. Additional offerings include server and endpoint installation, vulnerability assessments, antivirus-as-a-service and IT consulting for SMEs.

eLife Schaltanlagen AG 

Urdorf · Since 2021

eLife Schaltanlagen AG designs, manufactures and maintains switchgear and power distribution systems. Its services include planning/engineering, main and sub-distributions, MSRL systems, and service/maintenance, and it produces custom switchgear in its own production workshop in Urdorf.

Vernay Peinture Sàrl 

Lausanne · Since 2015

The core activity of Vernay Peinture Sàrl is to provide services in the field of building painting and renovation, including: interior and exterior painting, plastering, facade renovation, insulation, decoration, renovation of old and historic buildings, epoxy floor renovation, dismantling, plastering and false ceilings, chalet renovation, and elevator nacelle demolition. The company also offers consulting services, including color consulting, material selection, and project planning.

Kaufmann Turmkrane AG 

Oberhasli · Since 2015

The core activity of Kaufmann Turmkrane AG is the rental of tower cranes to the construction industry, including planning, assembly, operation and dismantling of the cranes. Additionally, the company also offers the sale of tower cranes, retrofit services, accessories and special constructions.

Rüegg Cheminée Schweiz AG 

Hinwil · Since 2011

Rüegg Cheminée Schweiz AG manufactures and supplies fireplaces, fireplace stoves, heat-storage devices and related accessories. Offerings also include gas, electric and bioethanol fireplaces, modular systems such as HEATCUBE, dealer and service support, downloadable product documentation and showroom consultations.

Dream life Sàrl 

Crissier · Since 2016

The core activity of Dream Life Sàrl is the planning, construction and installation of pools, particularly concrete pools of the Desjoyaux brand, as well as the renovation and servicing of pools. The company also offers related services such as the installation of pool covers, heat pumps and cleaning robots.

Expomobilia GmbH 

Effretikon · Since 1978

expomobilia is a global partner for outstanding brand experiences, specializing in the conception, planning, production and implementation of brand experiences, particularly in the field of experience marketing. The company's core activity encompasses the development and realization of customized brand experiences, including the production of exhibition stands, events and retail solutions, with a focus on high quality, efficiency and collaborative partnership.

LuxLinePool GmbH 

Uster · Since 2019

The core activity of LuxLinePool GmbH is the distribution and installation of prefabricated pools, in particular premium GFK pools (glass fibre reinforced plastic pools), as well as the provision of pool technology, pool accessories and services in the field of pool maintenance and care.

RENOMAIL CARRISI F. 

Thônex · Since 2014

The core activity of RénoMail is the renovation and vitrification (re-enameled) of bathroom fixtures, particularly bathtubs, showers, sinks and toilets. This also includes the repair of enamel coatings, the rehabilitation of sanitary facilities and the planning of bathroom renovation projects.

SPAG Schnyder, Plüss AG 

Stansstad · Since 1999

SPAG Schnyder, Plüss AG is a construction company providing road construction, civil engineering and pavement rehabilitation services. Its portfolio includes earthworks, sewer and utility installations, concrete and structural works, stream protection and retaining walls, as well as pavement repairs, manhole refurbishment, inert material recycling and workshop services.

von Dach AG Bern 

Bern · Since 1991

von Dach AG Bern is a company specialising in natural stone and stonemasonry works. It performs processing and restoration of stone elements, notably sandstone components, and produces bespoke stone pieces. The company is part of the Ramseier Gruppe.

Bollinger Bauspenglerei - Sanitäre Anlagen AG 

Schaffhausen · Since 2024

The company's core activity includes providing services in the following areas: Sanitation, Plumbing, Roofing, Carpentry, Construction Coordination, Renewable Energy (particularly solar systems), Façade Construction, and Roofing. Additionally, the company offers emergency services, such as emergency sanitation and emergency plumbing services.

Gilg AG 

Niederurnen · Since 1992

The core activity of Gilg AG encompasses crane work and transportation, particularly in the metal and glass construction sector. This includes, among other things: crane assembly and crane transportation with crane tractors and semi-trailers/tandem trailers, glass construction work, including complex glass construction and glass replacement, transportation and installation of heavy and bulky loads, such as concrete pools, and the use of crawler cranes, mini cranes, and self-propelled aerial work platforms for various applications. The company also offers specialized services such as precision work and meticulous planning for complex assembly concepts.