Waterproofing in
St. Gallen

Walder Abdichtungstechnik GmbH

Since 2020 · 1–10 empl.·5.0(36)

Walder Abdichtungstechnik GmbH provides services in sealing, building protection and renovation. Its work includes joint sealing and repairs, joint tapes, PU injections, pipe sealing, fire protection and coatings.

Anderegg Mauerentfeuchtung GmbH

Since 2019 · 1–10 empl.·4.6(12)

Anderegg Mauerentfeuchtung GmbH carries out masonry and damp-basement renovations. Its services include electro-osmotic wall drying, waterproofing, remedying water ingress, injecting water-bearing cracks in concrete, and treating dry rot.

SikaBau AG

Since 2000 · 1–10 empl.·4.5(4)

SikaBau AG specializes in building waterproofing, building protection and the repair of structures. Its services include waterproofing for buildings, bridges, tunnels and swimming pools, as well as concrete repair, injection work, coatings and corrosion protection.

TECTON AG St. Gallen

Since 2014 · 1–10 empl.

TECTON AG St. Gallen provides building maintenance, flat-roof work, renovations, sheet-metal work and green-roof services. Its activities focus on roofs and building envelopes.

HDS Bautenschutz GmbH

Since 2019 · 1–10 empl.·5.0(5)

HDS Bautenschutz GmbH carries out building protection work. Its services include waterproofing, seamless floor and wall coatings, floor care and protection, concrete repairs, and structural strengthening of existing concrete structures.

FLOEGO Fugenabdichtungen GmbH

Since 2022 · 1–10 empl.

FLOEGO Fugenabdichtungen GmbH specializes in joint sealing and waterproofing for the construction sector. Its services include joint repairs, joint tapes, fire-protection sealing and coatings for heavily used industrial floors.

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.

BauDicht AG, Zweigniederlassung St. Gallen

Since 2017 · 21–50 empl.·5.0(2)

BauDicht AG, Zweigniederlassung St. Gallen specialises in waterproofing for building construction and civil engineering. Its services include groundwater and structural waterproofing, as well as injection work for repair and renovation.

ABN Fugen- & Bauabdichtungen AG

Since 2016 · 1–10 empl.·3.4(5)

ABN Fugen- & Bauabdichtungen AG carries out joint sealing and building waterproofing work. Its services include joint repairs, glass sealing, fire-protection joints, plastic waterproofing and injection work.

DAWAG AG

Since 2025 · 11–20 empl.

DAWAG AG is a roofing, façade construction and waterproofing company. It plans, organises and carries out work on flat and pitched roofs and façades, and also provides roof windows, construction setting-out, repairs and maintenance.

Thomas Abdichtungstechnik GmbH

Since 2026 · 1–10 empl.

Thomas Abdichtungstechnik GmbH carries out flat-roof work, including renovations, waterproofing, regular maintenance, leak tests and repairs. Its services also include liquid-applied plastic waterproofing and work on terraces and balconies.

Abdichtungsbau Durrer AG, Zweigniederlassung St. Gallen

Since 2000 · 1–10 empl.