Renovation in
Olten

Trocktech AG

Since 2008 · 21–50 empl.·4.3(7)

Trocktech AG provides water damage remediation and drying services for buildings and construction projects. Its services also include drying insulation layers and flat roofs, leak detection, moisture measurements and construction heating.

Baugeschäft Arnold Wullschleger AG

Since 1966 · 1–10 empl.·5.0(1)

Baugeschäft Arnold Wullschleger AG carries out joinery and interior finishing work and supplies custom-made kitchens, doors, windows and bespoke joinery. Services include paneling, floor coverings, stairs and built-in furniture for renovations, conversions and new-build projects.

Bachmann AG Olten

Since 2020 · 1–10 empl.·4.8(4)

Bachmann AG Olten provides chimney-sweeping services and combustion inspections for oil, gas and wood heating systems and other combustion equipment. Its services include maintaining and cleaning boilers and flue systems, as well as advising on fire protection for new-build and renovation projects.

BETOSAN AG

Since 1991 · 1–10 empl.·4.0(4)

Onyx Facility Service GmbH

Since 2024 · 1–10 empl.

Onyx Facility Service GmbH provides facility services, including routine and specialist cleaning as well as building maintenance. Services include general and special cleaning, construction cleaning, caretaking and garden maintenance, plus specialist tasks such as graffiti removal, floor care and cleaning project management.

TORRENTIS GmbH

Since 2014 · 1–10 empl.

Carmine Philippe Fritz

Since 2025 · 1–10 empl.

Burri ImmoRep GmbH

Since 2025 · 1–10 empl.