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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,041 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureOwner's RepresentativeSevelenKeller & Steiner AG
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Keller & Steiner AG

Summary

About the company

The core activity of Keller + Steiner AG encompasses various services in the construction sector, particularly: construction scaffolding, surveying (building measurement, height surveys, crack measurement, construction surveying), drafting office (creation of plans, support for building submissions and execution plans), wall and floor coverings, living spaces (turnkey residential and commercial spaces), geomonitoring, and owner support and evidence securing. The company thus offers a comprehensive range of services for the construction and real estate sector.

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8
Construction gantries
Construction gantries, construction profiles, gantry towers, observation towers, custom solutions and earthing for building applications, project markings and safe execution even on complex sites.
Construction surveying / engineering surveying
Excavation surveying and calculations, data preparation, construction reference points, setting out of axes and string lines, as well as façade setting out for use throughout the construction process.
Client support / evidence preservation
Crack measurement, vibration measurement, structural shell inspections, damage management, construction controlling, and construction-site webcams to monitor the construction process and building fabric.
Monitoring / geomonitoring
Deformation measurement, vibration measurement, crack measurement, inclinometer measurement, rail track surveying as well as levelling and settlement measurement.
Building surveying
Building measurements, building scanning, work for heritage protection, as well as BIM, point clouds and model-based documentation of existing buildings.
Topographical and elevation surveying
Construction gantry checks, elevation point surveys, digital terrain model, drone surveys, photogrammetry, scanning, point-cloud surveys and 3D printing.
Drafting office
Drafting support, excavation plans 2D/3D, plan digitisation, visualisations, plan plotting and building submissions.
Construction cost estimation software (Architool)
Software for construction cost estimation and cost analysis in building construction, with object-part calculation and a cloud system for collaboration.
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Location

Bahnweg Nord 35
9475 Sevelen

At a glance

Legal form
Corporation
UID
CHE-103.714.272
Founded
1982 · 44 years
Last commercial register change
May 25, 2023
Employees
21 to 50

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