Sealing & Insulation in
St. Gallen

24 companies in Sealing & Insulation based in St. Gallen — name and year of registration from the commercial register. The list below shows them all.

Companies

All 24 companies in St. Gallen

Walder Abdichtungstechnik GmbH Logo

Walder Abdichtungstechnik GmbH

Since 2020 · 1–10 empl.5.0(33)

The core activity of Walder Abdichtungstechnik GmbH is the planning, consulting, processing and execution of sealing and sealing solutions for civil engineering and construction, particularly in the areas of joint sealing, joint renovation, fire protection, coatings, pipe sealing, structural glazing and PU injections.

Sealing & InsulationJoint SealingJoint RestorationJoint Tapes
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #1
ISO-CENTER AG, Zweigniederlassung St. Gallen Logo

ISO-CENTER AG, Zweigniederlassung St. Gallen

Since 2006 · 11–20 empl.4.3(20)

ISO-CENTER AG, Zweigniederlassung St. Gallen is a full-service supplier of technical insulation and insulating materials and operates an online shop. Its product range includes rubber and polyethylene insulation, mineral wool, PIR panels, fire-protection and acoustic products, cladding systems and installation accessories.

Sealing & InsulationTechnical insulation and insulation materialsFire protection productsAcoustic insulation products
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #2
ROTH AG St. Gallen Logo

ROTH AG St. Gallen

Since 1997 · 11–20 empl.

ROTH AG St. Gallen is a branch of the Roth Gruppe providing technical insulation, fire-protection and interior fit-out services. Services include HVAC/cold and steam insulation, industrial and apparatus insulation, fire-stopping solutions and cable module systems.

Sealing & InsulationHVACR, refrigeration and steam insulationIndustrial, plant and acoustic insulationBlown-in and cavity insulation
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #3
Roth Bautechnik AG Logo

Roth Bautechnik AG

Since 1999 · 11–20 empl.

Roth Bautechnik AG provides technical insulation services including HVAC, refrigeration and steam insulation as well as industrial, apparatus and acoustic insulation. Its services also cover passive fire protection such as penetrations and joint sealing, cable module systems and smoke extraction channels, interior fit-out, and consulting and training.

Sealing & InsulationInsulationsFire protectionConsulting & training
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #4
TECTON AG St. Gallen Logo

TECTON AG St. Gallen

Since 2014 · 1–10 empl.

TECTON AG St. Gallen provides building-envelope and roofing services, including waterproofing and both flat and pitched roof work. Services listed on the website include maintenance/after-sales service, metalwork (flashings), renovation, civil waterproofing and green roofs.

Sealing & InsulationService and maintenanceFlat roofBuilding renovation
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #5
MediSwiss Service GmbH Logo

MediSwiss Service GmbH

Since 2010 · 21–50 empl.2.8(11)

The core activity of the company "medisuisse" consists of managing and processing social insurance, in particular old-age and survivors' insurance (AHV) and disability insurance (IV), as well as family allowances. The company offers services to employers, employees and self-employed individuals, such as calculating and processing contributions, providing benefits and managing individual accounts.

Sealing & InsulationContributionsBenefitsInsurance classification
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #6
BauDicht AG, Zweigniederlassung St. Gallen Logo

BauDicht AG, Zweigniederlassung St. Gallen

Since 2017 · 21–50 empl.5.0(2)

BauDicht AG, Zweigniederlassung St. Gallen provides waterproofing and building-protection services for both building construction and civil engineering, covering planning, installation and maintenance of sealing systems. Services include groundwater and system waterproofing, joint and window-interface sealing, and injection techniques for crack repair.

Sealing & InsulationCivil engineering and groundwater waterproofingBuilding waterproofingRepairs and renovation
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #7
ABN Fugen- & Bauabdichtungen AG Logo

ABN Fugen- & Bauabdichtungen AG

Since 2016 · 1–10 empl.3.4(5)

The core activity of ABN Fugen- & Bauabdichtungen AG is the provision of services in the field of joint and building sealing, including joint sealing, joint renovation, glass sealing, fire-resistant joints, sealing tapes, plastic sealing, fire stops and injections.

Sealing & Insulation
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #8
FLOEGO Fugenabdichtungen GmbH Logo

FLOEGO Fugenabdichtungen GmbH

Since 2022 · 1–10 empl.

The core activity of FLOEGO GmbH is the provision of sealing services in the construction industry, particularly joint sealing and renovation, as well as the application of coatings and joint tapes for various applications in civil engineering and underground construction.

Sealing & InsulationJoint SealingJoint RenovationJoint Tapes
No score yet
Handwerk im Detail GmbH Logo

Handwerk im Detail GmbH

Since 2025 · 1–10 empl.

Handwerk im Detail GmbH is a plastering company that provides interior and exterior plastering, drywall construction, facade finishing, and stucco and decorative work. The company also carries out special projects such as renovations and solutions for fire protection, sound insulation, and acoustics.

Building MaintenancePlastering workDrywall constructionExterior rendering and facade renovation
No score yet
d'Aprile Gipsergeschäft Logo

d'Aprile Gipsergeschäft

Since 2026 · 1–10 empl.

d'Aprile Gipsergeschäft provides plastering and drywall services for residential, office, and commercial spaces. Its work includes interior plastering, drywall walls, partition walls, suspended ceilings, and renovation and finishing services.

Interior ConstructionPlastering ServicesDrywall ConstructionRenovations and Finishing Works
No score yet
AA

AGI AG für Isolierungen, Zweigniederlassung St. Gallen

Since 1992 · 1–10 empl.

Sealing & Insulation
No score yet

Sealing & Insulation in St. Gallen

24Sealing & InsulationCommercial register (Zefix) · as of October 10, 2026
2021Median year of registrationCommercial register (Zefix) · as of October 10, 2026
150in the Canton of St. GallenCommercial register (Zefix) · as of October 10, 2026
2,393in SwitzerlandCommercial register (Zefix) · as of October 10, 2026
Locations

Sealing & Insulation in the region

Point size by number of companies per place.

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