Plumber in
St. Gallen

68 companies in Plumber based in St. Gallen — name and year of registration from the commercial register.

Companies

50 of 68 companies

John Sanitär AG Logo

John Sanitär AG

Since 2015 · 1–10 empl.4.9(29)

John Sanitär AG carries out plumbing and heating work, including new installations, alterations, renovations, maintenance and repairs. Its services also cover property drainage, sewer inspections and pipe cleaning.

PlumberPlumbing workHeating workProperty drainage
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #1
Rolf Meier AG Logo

Rolf Meier AG

Since 1993 · 1–10 empl.4.8(20)

Rolf Meier AG plans and carries out plumbing installations, sheet-metal work and lightning protection systems. Its services also include repairs, maintenance, technical advice and planning.

PlumberSanitary installationsBathroom renovationWater treatment
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #2
Walter Gabler & Söhne AG Logo

Walter Gabler & Söhne AG

Since 1969 · 21–50 empl.4.6(10)

Walter Gabler & Söhne AG is a crafts company providing plumbing and sheet-metal (spengler) services. The firm carries out metal roofing and cladding, plans and installs lightning protection systems, and delivers sanitary installations, bathroom renovations, pipe cleaning and maintenance services. It also operates a 24-hour emergency service for leaking roofs, burst pipes and sewage blockages.

PlumberPlumbing workSheet metal work24-hour emergency service
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #3
kreis wasser ag Logo

kreis wasser ag

Since 1996 · 11–20 empl.4.4(19)

kreis wasser ag is a building-services company specialising in heating and plumbing. It advises on, plans, installs and maintains heating and plumbing systems, and provides customer services including boiler maintenance.

PlumberHeating and Cooling TechnologySanitary EngineeringService and Maintenance
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #4
Systec Therm AG Logo

Systec Therm AG

Since 1950 · 21–50 empl.4.3(13)

Systec Therm AG is a B2B trading company specialising in electric heating and technical building solutions. Its range includes heating systems, home automation, heat pumps, comfort ventilation, drying and hygiene equipment, and leak detection; it also provides consulting, planning and service.

ElectricianElectric heatingDrying and hygieneComfort ventilation
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #5
Wirth Gebäudetechnik AG Logo

Wirth Gebäudetechnik AG

Since 1997 · 21–50 empl.5.0(14)

The core activity of Wirth Gebäudetechnik AG is the planning, installation and renovation of sanitary and heating systems in industrial and residential buildings, for both new constructions and renovations.

PlumberBathroom renovationHeating system renovationService packages
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #6
Reto Stalder GmbH Logo

Reto Stalder GmbH

Since 1997 · 1–10 empl.5.0(11)

Reto Stalder GmbH provides plumbing services, including repairs to sanitary equipment and heating systems, and drain cleaning. Its services also include installing and maintaining water filters and softening systems, as well as bathroom renovations and installations.

PlumberBathroom renovations and installationsRepairsDrain cleaning
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #7
Poolman GmbH Logo

Poolman GmbH

Since 2004 · 1–10 empl.4.6(11)

Poolman GmbH plans and builds swimming pool facilities and carries out pool renovations and plumbing work. Its services include different pool types and pool covers.

Sports facility constructionSwimming pool systems (NIVEKO)Stainless steel poolsConcrete pools
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #8
Zürcher Wärme Logo

Zürcher Wärme

Since 2004 · 1–10 empl.4.8(6)

Zürcher Wärme is a real estate company that provides property buying and selling services, first-time letting, market valuation, and advisory support. It works with condominium apartments, single-family homes, and multi-family houses.

PlumberProperty sale and purchaseMarket value appraisalReal estate consulting
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #9
swisspro AG Logo

swisspro AG

Since 2000 · 21–50 empl.4.0(10)

swisspro AG provides solutions in the electrical, ICT and automation sectors. The company delivers planning, implementation and maintenance services for projects, including electrical installations, building automation, renewable energy systems, IT installations, AV and telephony, and offers outtasking/outsourcing services.

PlumberElectrical InstallationsService & Maintenance for Electrical SystemsRenewable Energy
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #10
Sanitär LaGo GmbH Logo

Sanitär LaGo GmbH

Since 2005 · 1–10 empl.5.0(6)

The core activity of Sanitär LaGo GmbH is the installation, renovation and maintenance of sanitary facilities, heating systems and industrial technology in Eastern Switzerland. This includes in particular: sanitary installations (e.g. renovation or conversion of bathrooms), heating system installations and maintenance, industrial technology (without further specification), and a 24-hour repair service for pipe blockages, heating system failures and water damage.

Specialist foundation engineeringSanitary installationsHeating installations and heating renovationIndustrial technology / Industrial connections
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #11
Giannuzzi Bad- und Haustechnik GmbH Logo

Giannuzzi Bad- und Haustechnik GmbH

Since 2018 · 1–10 empl.5.0(8)

The company's core activity is the renovation and refurbishment of bathrooms, including the replacement of fixtures and fittings.

PlumberBathroom renovationMaintenance serviceRenovation work
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #12
E3 HLK AG Logo

E3 HLK AG

Since 2010 · 21–50 empl.5.0(6)

E3 HLK AG plans, installs and maintains heating, ventilation and cooling systems for building services engineering. The company also provides service, maintenance, operational optimisation, contracting and other energy engineering and plant construction services.

PlumberHeatingVentilationCooling
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #13
Hälg & Co. AG Logo

Hälg & Co. AG

Since 1981 · 101–500 empl.

Hälg & Co. AG plans, installs and maintains building services systems. Its services include heating, cooling, ventilation and air-conditioning systems, as well as building automation, maintenance, renovations and ventilation cleaning.

PlumberPlant engineering / Service
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #14
Schwizer Haustechnik AG Logo

Schwizer Haustechnik AG

Since 1988 · 1–10 empl.

Schwizer Haustechnik AG plans and installs bathroom, plumbing, heating and ventilation systems for new buildings and renovations. It also provides maintenance, repairs and emergency services for plumbing and heating systems.

PlumberBathroom renovationBathroom architectureInterior architecture
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #15
Bion Bauhaus AG Logo

Bion Bauhaus AG

Since 1994 · 11–20 empl.

Bion Bauhaus AG is Heim AG Heizsysteme. Heim AG Heizsysteme acquired Bion Bauhaus AG on 1 July 2023 and handles enquiries and services through its heating-systems business, which provides renewable-energy heating solutions such as heat pumps, wood-energy systems, solar systems and energy-management solutions.

PlumberHeat pumpsWood energySolar systems
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #16
E. Jenny Logo

E. Jenny

Since 1995 · 1–10 empl.

E. Jenny provides planning, installation, renovation and maintenance services for sanitary systems, heating systems and photovoltaic/solar installations, and carries out repairs and service work. The website states a 24-hour emergency service is available to clients; sheet‑metal/Spengler work is currently not offered.

PlumberSanitary servicesHeating systemsPhotovoltaic systems and solar systems
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #17
Jenny Gebäudetechnik AG Logo

Jenny Gebäudetechnik AG

Since 2009 · 11–20 empl.

Jenny Gebäudetechnik AG plans and installs plumbing and heating systems for new buildings and renovations, and carries out repairs and maintenance. Its services also include solar and photovoltaic systems.

PlumberSanitary workBathroom renovations and bathroom conversionsHeating system work
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #18
Sanitär Klarer-Hörler AG Logo

Sanitär Klarer-Hörler AG

Since 2010 · 11–20 empl.

Sanitär Klarer-Hörler AG plans and installs sanitary systems for new buildings, renovations, conversions and industrial buildings. Its services include sanitary planning, maintenance and repairs, as well as cold and hot water, rainwater and wastewater, gas and compressed-air installations.

PlumberSanitary planningPlumbing installationsPlumbing service
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #19
InnoBAD SWISS AG Logo

InnoBAD SWISS AG

Since 2016 · 1–10 empl.4.6(9)

The core activity of InnoBAD Swiss AG is the planning and execution of bathroom renovations, conversions and renovations, in particular: seamless bathroom renovation, bathtub conversion to showers, barrier-free showers, complete bathroom renovation in just 24 hours, bathtub replacement, and safety measures in the bathroom. The company also offers consulting and planning for individual bathroom solutions and relies on a wide range of brands and products to meet customer wishes.

Plumber24-hour bathroom renovationBathtub-to-shower conversionShower renovation
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #20
Haustechnik Plan B AG Logo

Haustechnik Plan B AG

Since 2018 · 11–20 empl.

The core activity of Haustechnik Plan b AG is the planning and coordination of building technology, particularly in the areas of plumbing, heating and ventilation (HLSE). The company offers services such as project planning, coordination and support in all planning phases and specializes in the renovation, expansion and new construction of buildings in various industries, including industry, public buildings, commerce and residential buildings.

PlumberBuilding services planningDrainage planningFeasibility studies
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #21
INHAUS AG Logo

INHAUS AG

Since 2019 · 1–10 empl.

INHAUS AG is a wholesale supplier of components and systems for bathrooms, heating, plumbing, ventilation and air conditioning. It distributes these products and provides consultancy and tailored bathroom and heating solutions for installers and end customers.

PlumberBathroom solutionsBathroom consultationBathroom Park / Showroom
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #22
H. Fatzer AG, Heizung-Lüftung-Sanitär Logo

H. Fatzer AG, Heizung-Lüftung-Sanitär

Since 1972 · 1–10 empl.3.8(15)

H. Fatzer AG, Heizung-Lüftung-Sanitär plans, installs, renovates and repairs heating, ventilation and plumbing systems. Its services also include maintenance and servicing, with solutions for heating systems, controlled ventilation, water and wastewater installations, and hot-water preparation.

PlumberHeatingVentilationPlumbing
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #23
LULI - Haustechnik Logo

LULI - Haustechnik

Since 2000 · 1–10 empl.5.0(3)

LULI - Haustechnik installs and maintains heating and plumbing systems in new and renovated buildings. Its services include a range of heating systems, burner maintenance and a 24-hour emergency repair service.

PlumberHeating systemsSanitary installations and bathroom renovationsBoiler descaling
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #24
Mauron Gebäudetechnik GmbH Logo

Mauron Gebäudetechnik GmbH

Since 2001 · 1–10 empl.4.3(12)

Mauron Gebäudetechnik GmbH plans and installs heating, ventilation, cooling and plumbing systems, and provides engineering planning for building services. Its services also include maintenance and support, including a 24/7 emergency service.

PlumberHeating engineeringPlanning and engineeringService around the clock
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #25
Müller Brenner-Service GmbH Logo

Müller Brenner-Service GmbH

Since 2005 · 1–10 empl.4.1(9)

PlumberBurner serviceBurner refurbishmentReplacement of heating valves
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #26
Luli Haustechnik GmbH Logo

Luli Haustechnik GmbH

Since 2017 · 1–10 empl.5.0(3)

Luli Haustechnik GmbH installs, maintains and repairs heating, plumbing and combustion systems, and provides related service and sales. Its work includes heat pumps, oil, gas and wood-fired heating, plumbing installations, bathroom renovations and burner servicing.

PlumberHeating systemsSanitary installationsBurner service for oil and gas-fired burners
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #27
Müller Wüst AG Logo

Müller Wüst AG

Since 2019 · 1–10 empl.

Müller Wüst AG provides model-based services for building technology, including fabrication models and the prefabrication of pipework and fastening systems. Its services also include planning coordinated fastening systems and digital support for installing plumbing, heating, cooling and sprinkler systems.

PlumberMW methodBuilding services fabrication modelsModel-based fastening technology
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #28
Lippuner Hosting GmbH Logo

Lippuner Hosting GmbH

Since 2013 · 21–50 empl.1.0(1)

Lippuner Hosting GmbH provides building services engineering, including planning and installation for ventilation/air conditioning, heating/cooling, sanitary and measurement‑control‑regulation (MSR) systems, and also delivers service, energy management and sheet‑metal/metalwork services.

MetalworkBuilding services engineeringServiceTechnical building management
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #29
Häberlin Engineering GmbH Logo

Häberlin Engineering GmbH

Since 2017 · 1–10 empl.5.0(3)

Häberlin Engineering GmbH is a building services engineering firm providing planning and project management for heating, ventilation, air conditioning and sanitary systems (HVAC/S) and sprinkler installations. Services include feasibility studies, expert reports, condition analyses, operational optimizations, measurement concepts, specialist site supervision and coordination, plus energy solutions such as renewable systems, heat recovery, energy certificates (Minergie) and thermography.

PlumberBuilding services engineering planningTechnical coordinationEnergy solutions
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #30
Gebrüder Zotti GmbH Logo

Gebrüder Zotti GmbH

Since 1995 · 1–10 empl.5.0(3)

Gebrüder Zotti GmbH plans, installs and maintains heating and air-conditioning systems, as well as ventilation and solar systems. Its services include advice on heating, ventilation and solar technology and solutions for heating and indoor air.

PlumberHeatingVentilationSolar thermal
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #31
Huser Haustechnik GmbH Logo

Huser Haustechnik GmbH

Since 2022 · 1–10 empl.

Huser Haustechnik GmbH plans and installs heating and plumbing systems for new buildings, conversions and renovations. Its services include repairs and the installation of heat pumps, radiators, underfloor heating and plumbing fixtures.

PlumberSanitary installationsHeating systems
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #32
Pfister-Heizungen AG Logo

Pfister-Heizungen AG

Since 2024 · 11–20 empl.4.6(7)

Pfister-Heizungen AG is a specialist heating company offering consultancy, planning, installation and maintenance services for new-builds and renovations. Its services include heat pumps, oil, gas, wood and pellet heating systems, solar thermal installations, district heating, chimney systems, heat distribution, residential ventilation and project management for boiler replacements.

PlumberHeating system renovationsHeat distributionNew-builds
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #33
beco Haustechnik GmbH Logo

beco Haustechnik GmbH

Since 2023 · 1–10 empl.

The core activity of Beco Haustechnik GmbH is the planning and implementation of energy and building technology projects, particularly in the field of heating technology. The company provides engineering services and focuses on the development of reliable and efficient solutions for the construction and renovation of buildings.

PlumberBuilding Services Engineering Planning (HLKS)Specialist Site Management and Construction SupervisionConsulting and Feasibility Studies
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #34
Bewatec Fejzuli Logo

Bewatec Fejzuli

Since 2020 · 1–10 empl.5.0(4)

The core activity of BewaTec is the provision of services in the sanitary sector, particularly in the installation, maintenance, repair and renovation of sanitary facilities, water pipes, drainage systems and pipelines. This also includes emergency services, consulting, planning and complete services for private and business customers.

Plumber
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #35
IG Energietechnik AG Logo

IG Energietechnik AG

Since 2000 · 1–10 empl.5.0(1)

IG Energietechnik AG is an engineering firm for building services and energy solutions, providing planning and consulting for heating, ventilation/air conditioning and energy systems. The company carries out building services projects and is a member of the Schweizerischen Vereinigung Beratender Ingenieurunternehmungen (suisse.ing).

EngineerHeating PlanningVentilation and Air Conditioning PlanningEnergy Consulting
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #36
Thür Sanitär Service GmbH Logo

Thür Sanitär Service GmbH

Since 2023 · 1–10 empl.

Thür Sanitär Service GmbH is a plumbing company that carries out plumbing installations, pipe cleaning and pipe renovation. Its services also include maintenance, repairs, renovation and new construction, as well as emergency assistance.

PlumberPlumbing installationsDrain and pipe cleaningEmergency service
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #37
Wirkungsgrad Ingenieure AG, Zweigniederlassung St. Gallen Logo

Wirkungsgrad Ingenieure AG, Zweigniederlassung St. Gallen

Since 2018 · 1–10 empl.5.0(1)

Wirkungsgrad Ingenieure AG, Zweigniederlassung St. Gallen is an engineering firm specialising in energy and building services. It plans heating, ventilation, air conditioning, cooling, plumbing, sprinkler and building automation systems, and supports their implementation.

PlumberPlanning of heating, ventilation, air-conditioning, refrigeration, sanitary, sprinkler and building automation systemsOverall planning across all tradesEnergy consulting and certification
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #38
Köpp AG Logo

Köpp AG

Since 1977 · 1–10 empl.

Köpp AG plans and installs sanitary systems for new buildings and renovation projects. Its services include bathroom renewal, coordination of related trades, and maintenance and repair work.

PlumberSanitary installationsRenovation workNew construction
No score yet
KAMMTEC GMBH Logo

KAMMTEC GMBH

Since 2002 · 1–10 empl.

The core activity of kammtec GmbH is the planning, execution, consulting and maintenance of building automation systems, particularly in the areas of heating, ventilation, air conditioning, sanitation and electrical engineering (HVAC). The company offers individual solutions for building automation, including programming, software simulation, electrical schematics, commissioning, documentation and maintenance. It also supports customers in the planning and implementation of projects, including engineering, alarm concepts, fault management and IT concepts.

PlumberPlanning and consulting in building automationImplementation and execution Control & RegulationSupport and periodic maintenance of systems and infrastructure
No score yet
Schläpfer Sanitär Service Logo

Schläpfer Sanitär Service

Since 2017 · 1–10 empl.

The core activity of Schläpfer Sanitär Service is the provision of services in the field of building technology, particularly in sanitary installation, bathroom renovation and maintenance of building technology systems.

RenovationPlumbing installationsBathroom renovationsBuilding services
No score yet
TechInstall GmbH Logo

TechInstall GmbH

Since 2021 · 1–10 empl.

TechInstall GmbH plans and installs heating, plumbing, refrigeration and ventilation systems for residential, commercial and industrial buildings. It also provides servicing, repairs and maintenance for these systems.

PlumberHeating installationSanitary installationsRefrigeration and air-conditioning
No score yet
plansync GmbH Logo

plansync GmbH

Since 2024 · 1–10 empl.

plansync GmbH is an engineering office specialising in building services for heating, ventilation and plumbing. It prepares plans and calculations, provides consultancy and specialist construction supervision, and coordinates building services including electrical systems.

PlumberBuilding services HLKSSpatial overall coordination HLKS+EHeating design
No score yet
VRA Haustechnik GmbH Logo

VRA Haustechnik GmbH

Since 2025 · 1–10 empl.

VRA Haustechnik GmbH provides services for heating systems, heat pumps, and air conditioning systems. The company handles installation, repairs, maintenance, and a 24/7 emergency service for heating and building services equipment.

EngineerHeating installationsHeating, heat pump and air-conditioning serviceMaintenance service
No score yet
EA

Espro AG

Since 1963 · 1–10 empl.

Electrician
No score yet
B&

Burkart & Co. Heizungen u. Oelfeuerungen

Since 1982 · 1–10 empl.

Plumber
No score yet
JF

Jörg Falk Haustechnik

Since 1990 · 1–10 empl.

Plumber
No score yet
PR

Paul Rohner GmbH

Since 2007 · 1–10 empl.

Plumber
No score yet
M-

MLM - Migi Lüftungen & Montage GmbH

Since 2013 · 1–10 empl.

Plumber
No score yet
BM

BSL Montagen GmbH

Since 2015 · 1–10 empl.

Plumber
No score yet

Plumber in St. Gallen

68PlumberCommercial register (Zefix) · as of November 6, 2026
2016Median year of registrationCommercial register (Zefix) · as of November 6, 2026
532in the Canton of St. GallenCommercial register (Zefix) · as of November 6, 2026
8,141in SwitzerlandCommercial register (Zefix) · as of November 6, 2026
Locations

Plumber in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of November 6, 2026