Roofing in
St. Gallen

16 companies in Roofing based in St. Gallen — name and year of registration from the commercial register. The list below shows them all.

Companies

All 16 companies in St. Gallen

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 #1
merz+egger ag Logo

merz+egger ag

Since 2017 · 11–20 empl.4.6(22)

merz+egger ag is a roofing and building-envelope company providing services for roofs, façades, roof windows, solar installations and ongoing maintenance. Offerings include roof inspections and renovations, photovoltaic systems, fall‑protection solutions and emergency/maintenance services.

RoofingRoof maintenanceRoof inspectionRoof renovation
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #2
merz+egger ag Logo

merz+egger ag

Since 2017 · 11–20 empl.4.6(22)

merz+egger ag is a roofing and building-envelope company providing services for roofs, façades and solar installations. Offerings include roof renovation, roof inspections and maintenance, roof windows (VELUX partner), fall-protection systems and the planning and installation of photovoltaic systems.

RoofingRoofsFacadesSolar
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #3
Beat Brönnimann GmbH Logo

Beat Brönnimann GmbH

Since 2001 · 21–50 empl.4.3(13)

The core activity of Beat Brönnimann GmbH is sheet metal work, particularly the planning, manufacture and installation of roof and facade constructions, including flat roofs, metal roofs, pitched roofs, facades, lightning protection systems and special custom-made products.

RoofingFlat roofMetal roofPitched roof
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #4
Ruedi Rüegg AG Logo

Ruedi Rüegg AG

Since 2013 · 1–10 empl.5.0(7)

Ruedi Rüegg AG is a roofing and façade company offering new-build, renovation and maintenance services for flat and pitched roofs. Services include liquid-plastic waterproofing, ventilated façade cladding, installation of Velux roof windows, snow clearing and work-safety measures.

RoofingRoof maintenancePitched roofFlat roof
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #5
Deckenbauer AG Logo

Deckenbauer AG

Since 2014 · 21–50 empl.4.3(17)

Deckenbauer AG provides design, planning, installation and maintenance of ceiling systems and claddings. The company’s product range includes conventional ceilings, multifunctional thermal ceilings (heating/cooling systems), metal and wood ceilings, wall coverings and drywall/plaster work, with project support from consultation through final installation.

RoofingCeiling systemsCeiling liningsWall cladding
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #6
Weibel AG Bedachungen Fassadenbau Logo

Weibel AG Bedachungen Fassadenbau

Since 1978 · 21–50 empl.5.0(2)

The company provides services and products in the field of roof and facade construction, including thermal insulation, energy efficiency, renovation, repair and maintenance of roofs and facades, as well as specialized services such as green roofing, snow retention and snow removal.

RoofingFlat roofPitched roofFacade
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #7
Schudel & Hinder GmbH Logo

Schudel & Hinder GmbH

Since 1995 · 11–20 empl.

The core activity of Schudel & Hinder GmbH is the provision of roofing and sheet metal work services, particularly roofing, repairs and installations on roofs and facades, for both private and commercial customers in the greater St. Gallen and Chur areas.

RoofingRoofingSheet metal workLightning protection
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #8
Wild + Treichler AG Logo

Wild + Treichler AG

Since 2013 · 1–10 empl.5.0(3)

The core activity of Wild + Treichler AG is the planning, execution and maintenance of roofs, facades and related services such as roof inspections, maintenance, snow removal, scaffolding, roof visualization, roof windows and skylights. The company thus offers comprehensive solutions for the building envelope and positions itself as a roofing company in Eastern Switzerland, particularly in St. Gallen.

RoofingPitched roofFlat roofFacades
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #9
BS Dächer & Fassaden GmbH Logo

BS Dächer & Fassaden GmbH

Since 2016 · 11–20 empl.4.6(5)

The core activity of BS Dächer & Fassaden GmbH encompasses the planning, installation and maintenance of building envelopes, including: roofing works (flat roofs, pitched roofs, roof renovations, roof cladding), façade construction (ventilated façades, façade renovations), solar systems (planning, installation and assembly of photovoltaic systems), sheet metal works (metal works made of stainless steel, copper, aluminum, zinc or lead) and industrial works (sandwich elements, steel structure assembly, playground assembly, system construction). The company thus offers comprehensive services for building envelopes and renewable energies.

RoofingFlat roofPitched roofSheet metal work
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #10
F&S Bedachungen GmbH Logo

F&S Bedachungen GmbH

Since 2020 · 1–10 empl.5.0(6)

The core activity of F&S Bedachungen GmbH is the planning, coordination, renovation and maintenance of roofs, particularly pitched roofs, flat roofs and entrance roofs, as well as the application of liquid plastics and fine stoneware plates. The company also offers maintenance work and annual inspections to ensure the lifespan and quality of the roofs.

RoofingPitched roofFlat roofLiquid plastic
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #11
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 #12

Roofing in St. Gallen

16RoofingCommercial register (Zefix) · as of October 10, 2026
2015Median year of registrationCommercial register (Zefix) · as of October 10, 2026
152in the Canton of St. GallenCommercial register (Zefix) · as of October 10, 2026
1,900in SwitzerlandCommercial register (Zefix) · as of October 10, 2026
Locations

Roofing in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of October 10, 2026

Largest places

Flawil5Wattwil5