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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,805 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitecture FirmsWindischHartmann Keller Architekten, Inhaber Christian Hartmann
Hartmann Keller Architekten, Inhaber Christian Hartmann Logo
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Hartmann Keller Architekten, Inhaber Christian Hartmann

Summary

About the company

Hartmann Keller Architekten, Inhaber Christian Hartmann is an architectural firm. The firm provides project development, project and execution planning including construction management, and carries out new-builds, conversions and renovations; it also takes over external projects for continuation or support.

AI-generated
Offering

Products & services

Industry:Architecture Firms
✓ Offered3
Project development, project and execution planning including site management
Project development and project and execution planning including site management for construction projects in the Brugg, Baden, Aarau and Fricktal region.
New builds, conversions and renovations
New builds, conversions and renovations, as well as structures with challenging conditions.
Taking over third-party projects for continuation or support
Taking over third-party projects for continuation or support when projects were started externally and need to be continued architecturally.
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Reviews

Aggregated rating

Aggregated rating
3.5
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle3.52
★TrustpilotSoon
PProvenExpertSoon

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Location

Dohlenzelgstrasse 39
5210 Windisch
Opening hours
Mon
08:00 - 12:00, 13:00 - 17:00
Tue
08:00 - 12:00, 13:00 - 17:00
Wed
08:00 - 12:00, 13:00 - 17:00
Thu
08:00 - 12:00, 13:00 - 17:00
Fri
08:00 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-256.542.171
Founded
2018 · 8 years
Last commercial register change
December 27, 2018
Employees
11 to 20

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