Specialized Construction Installations in
St. Gallen

26 companies in Specialized Construction Installations based in St. Gallen — name and year of registration from the commercial register. The list below shows them all.

Companies

All 26 companies in St. Gallen

Klarer Fenster AG Logo

Klarer Fenster AG

Since 1965 · 51–100 empl.4.8(37)

The company's core activity is the production and distribution of windows and doors made from various materials such as wood, metal and plastic.

Specialized Construction InstallationsWindow consultation, installation, service and warrantyTimber windowsTimber-metal windows
ranQ Trust Score 4.6 out of 5.0, rated Excellent, Rank #1
Stebro AG Logo

Stebro AG

Since 1993 · 11–20 empl.4.9(27)

The core activity of Stebro AG is the planning, installation and maintenance of gate and drive products, particularly garage doors, front doors, frames and drives of the Hörmann brand. The company also offers a 24-hour emergency service and distributes additional products such as machine houses and garden boxes.

Specialized Construction InstallationsGates and doorsLoading technologyAccess control systems
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #2
Litex AG Logo

Litex AG

Since 1959 · 21–50 empl.4.4(34)

The core activity of LITEX AG is the development and implementation of advertising technology solutions, particularly in the field of outdoor and indoor advertising, including illuminated advertising, digital signage, screen printing, industrial solutions, rebranding, and service and maintenance. The company offers a wide range of services, from consulting and planning to the implementation and maintenance of advertising media, as well as the complex handling of advertising and rebranding projects.

Specialized Construction InstallationsAdvertising technologyIlluminated advertisingDigital Signage
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #3
Tiro Ofenbau AG Logo

Tiro Ofenbau AG

Since 1986 · 11–20 empl.4.7(46)

The company's core activity is the construction of fireplaces, particularly the planning, consulting and installation of individual heating solutions such as tile stoves, storage heaters and fireplaces, with a focus on sustainability, energy efficiency and design.

Specialized Construction InstallationsFireplace conversionAdvice & planningStove construction
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #4
John Sanitär AG Logo

John Sanitär AG

Since 2015 · 1–10 empl.4.9(29)

The core activity of John Sanitär AG encompasses the provision of services in the field of sanitary, heating and drainage technology. This includes: Sanitary work (new construction, renovation, maintenance and repairs), heating work (renovation, maintenance and repairs), work related to property drainage (sewer TV, pipe cleaning, unclogging of drains), service and maintenance of heating systems and sanitary facilities, flushing of underfloor heating and maintenance of heating components (pumps, valves, etc.). The company thus offers a comprehensive range of services for the maintenance and repair of sanitary, heating and drainage systems.

Plumbing & Building ServicesPlumbing workHeating workProperty drainage
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #5
TCA Thermoclima AG Logo

TCA Thermoclima AG

Since 1975 · 51–100 empl.4.1(21)

The core activity of TCA Thermoclima is the distribution and sale of air conditioning systems and heat pumps, particularly from Japanese and European manufacturers such as Daikin, Panasonic, Aermec and Heliotherm. The company also offers comprehensive services including installation, maintenance, repair and maintenance of air conditioning systems, heat pumps and industrial refrigeration systems.

Specialized Construction InstallationsAir conditioning and cooling systemsVentilation systemsCustomer service
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #6
TK Aufzüge AG, Zweigniederlassung St. Gallen Logo

TK Aufzüge AG, Zweigniederlassung St. Gallen

Since 2001 · 1–10 empl.4.8(5)

TK Aufzüge AG, Zweigniederlassung St. Gallen provides installation, modernization and manufacturer‑independent maintenance and repair services for elevators, escalators and moving walks. The portfolio includes new elevator products (e.g. EOX, TWIN, Momentum), home lifts, emergency call/4G upgrade solutions, digital service tools and a 24/7 fault reporting service.

Specialized Construction InstallationsElevatorsEscalatorsMoving walkways
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #7
Keller Lufttechnik AG Logo

Keller Lufttechnik AG

Since 1991 · 11–20 empl.

The core activity of Keller Lufttechnik is the development, manufacture and distribution of industrial dust extraction systems, with the aim of providing clean air in the workplace and thus improving the health of employees, the longevity of buildings and systems, and the quality of products.

Specialized Construction InstallationsExtraction systemsIndustrial dust extraction systemsAfter-sales service
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #8
Heliobus AG Logo

Heliobus AG

Since 1999 · 11–20 empl.

The core activity of Heliobus AG is the planning and distribution of daylight systems, in particular the development, manufacture and installation of mirror shafts and other daylight-based solutions for cellar construction and building lighting.

Specialized Construction InstallationsDaylighting System (Mirror shaft®)Walk-on Glass Skylights (Glassfloor®)Light Well Covers
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #9
IBG Inspektion AG Logo

IBG Inspektion AG

Since 2006 · 11–20 empl.

The core activity of IBG Inspektion AG is the performance of safety inspections and tests, particularly in the field of electrical installations, as well as the provision of services such as lightning protection systems, expert opinions, measurement technology and occupational safety. The company also offers training and seminars and has an accredited inspection body.

Specialized Construction InstallationsAccredited InspectionsIndependent Electrical InspectionsLightning Protection Systems
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #10
Fh Kältetechnik AG Logo

Fh Kältetechnik AG

Since 2017 · 1–10 empl.

The core activity of Fh Kältetechnik AG includes the repair, trade, sale and installation of refrigeration, air conditioning, energy and heat pump systems and equipment, as well as the maintenance and servicing of these systems. Additionally, the company also offers the distribution and service of professional refrigerators and other cooling devices.

Specialized Construction InstallationsRefrigeration systemsAir-conditioning systemsService and repairs
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #11
Ammann Storen AG Logo

Ammann Storen AG

Since 2001 · 1–10 empl.3.4(19)

The core activity of Ammann Storenbau AG is the manufacture and distribution of sun and weather protection systems, in particular roller shutters, shading systems, awnings, window shutters and special shading systems. The company also offers services such as repairs, workshop and training.

Specialized Construction InstallationsSun and weather protectionRoller shutter systemsWindow shutters
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #12
Klima Komfort GmbH Logo

Klima Komfort GmbH

Since 2020 · 1–10 empl.4.4(7)

The core activity of Klima Komfort GmbH is the planning, installation and maintenance of ventilation and air conditioning systems for various industries such as industry, commerce, gastronomy, offices and living spaces, with the aim of creating a healthy and comfortable indoor air and improving energy efficiency.

Specialized Construction InstallationsVentilation system designInstallation of ventilation systemsService and hygiene for ventilation and air-conditioning systems
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #13
alerto ag Logo

alerto ag

Since 2023 · 1–10 empl.

The core activity of alerto ag is the development and provision of security solutions for private households and public administrations, particularly in the form of easily installable alarm systems that can be activated with the press of a button.

Specialized Construction InstallationsSOS button for private householdsSOS button for municipalities
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #14
Warping AG Logo

Warping AG

Since 2021 · 1–10 empl.4.0(4)

The core activity of Warping GmbH is facade construction, including window construction and steel construction, with a focus on quality, innovation and customer service. The company offers comprehensive services from planning and organization to installation and maintenance of facades, windows and steel structures for construction projects.

Specialized Construction InstallationsFacade constructionWindow constructionSteel construction
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #15
DAWAG AG Logo

DAWAG AG

Since 2025 · 11–20 empl.

DAWAG AG is a roofing and facade construction company. It plans, coordinates and carries out work on flat and pitched roofs, facade cladding, roof windows, roof repairs and setting-out services for construction projects.

Specialized Construction ActivitiesFlat roof workPitched roof workFacade construction
ranQ Trust Score 3.7 out of 5.0, rated Solid, Rank #16
3Decke by Pogor Logo

3Decke by Pogor

Since 2025 · 1–10 empl.

3Decke by Pogor provides premium stretch ceiling solutions for residential, commercial and public spaces. The company plans, supplies and installs customised ceiling systems with 3D technology, LED systems and smart home integration.

Specialized Construction ActivitiesStretch Ceiling SolutionsStretch Ceilings with LED Lighting3D Stretch Ceilings
ranQ Trust Score 3.5 out of 5.0, rated Solid, Rank #17
Livera GmbH Logo

Livera GmbH

Since 2021 · 1–10 empl.

The core activity of Livera GmbH is the provision of services in the construction and real estate sector, particularly in the areas of: construction assembly of all kinds, trade in building materials such as flooring products, windows, doors, kitchens and furniture, and renovations and facility management in the real estate sector. The company thus offers a comprehensive service in the field of construction and real estate economics.

Specialized Construction InstallationsBuilding assemblyTrade in building materialsRenovations
No score yet
Atobi GmbH Logo

Atobi GmbH

Since 2025 · 1–10 empl.

Atobi GmbH provides store fitting, merchandising, and rollout installation services. The company carries out on-site assembly and coordinates projects across multiple locations throughout Switzerland.

Other Service IndustriesShopfitting InstallationMerchandising ServicesRollout Projects
No score yet
DA

Diamantbohr AG

Since 1987 · 1–10 empl.

Specialized Construction Installations
No score yet
B&

Burkart & Co. Bau- u. Industriemontagen

Since 1988 · 1–10 empl.

Specialized Construction Installations
No score yet
SB

Skenderi Baumontage GmbH

Since 2017 · 1–10 empl.

Specialized Construction Activities
No score yet
K+

K + T Kältetechnik GmbH

Since 2018 · 1–10 empl.

Specialized Construction Installations
No score yet
LG

Lindair GmbH

Since 2021 · 1–10 empl.

Building Maintenance
No score yet
SS

SL Storenbau GmbH

Since 2022 · 1–10 empl.

Specialized Construction Installations
No score yet
SS

SM Storen GmbH

Since 2024 · 1–10 empl.

Specialized Construction Installations
No score yet

Specialized Construction Installations in St. Gallen

26Specialized Construction InstallationsCommercial register (Zefix) · as of October 11, 2026
2017Median year of registrationCommercial register (Zefix) · as of October 11, 2026
232in the Canton of St. GallenCommercial register (Zefix) · as of October 11, 2026
3,516in SwitzerlandCommercial register (Zefix) · as of October 11, 2026
Locations

Specialized Construction Installations in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of October 11, 2026