Sealing & Insulation in the
Canton of Nidwalden

A. Heini GmbH

Since 2006 · 1–10 empl.

A. Heini GmbH specializes in joint sealing, waterproofing and fire-protection works. The company provides services including sealant joint installation, fire-stopping, waterproofing for balconies and terraces, and maintenance for new-build, renovation and refurbishment projects.

A. Heini Plus GmbH

Since 2019 · 1–10 empl.

A. Heini Plus GmbH specialises in joint sealing, waterproofing and fire-stopping works. The company carries out installation, renovation and maintenance of sealing and fire-protection systems for buildings.

Isotech Zentralschweiz AG

Since 2005 · 11–20 empl.·5.0(2)

The core activity of Isotech Zentralschweiz AG is building protection. The company offers consulting, planning and execution of building protection measures and guarantees tailored solutions with professional execution and fair prices.

Walter - Abdichtungen

Since 2018 · 1–10 empl.

Walter - Abdichtungen provides joint-sealing and building waterproofing services for construction projects. Services include silicone joints for interior and wet areas, expansion and fire-protection joints, tape and foil seals, and coatings for terraces, basements and wet rooms using permanently elastic mineral mortar.

Pilatus Reisen & Pilatus Abdichtungen AG

Since 1990 · 1–10 empl.

TECTON-ATISOL AG, Zweigniederlassung Hergiswil NW

Since 1991 · 1–10 empl.

Koch Fugentechnik

Since 2002 · 1–10 empl.

Schiltli GmbH

Since 2011 · 1–10 empl.

KoNi Bauabdichtung GmbH

Since 2014 · 1–10 empl.

DL Abdichtungen GmbH

Since 2025 · 1–10 empl.