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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint742,806 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionSionDumas Construction SA
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Verified· 3 sources

Dumas Construction SA

Summary

About the company

Dumas Construction SA is a construction company operating as a general contractor across building, civil engineering and infrastructure projects. Its services include residential and industrial building works, roadworks, earthworks and public infrastructure, providing project support from design to handover while integrating sustainability measures.

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Offering

Products & services

Industry:Building Construction
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General Contractors
✓ Offered3
General contractor
Accompaniment of real estate projects from design to handover, supervision, scheduling, technical management and budget monitoring for villas and complex buildings.
Building construction
Construction of single- and multi-family homes, residential buildings, public buildings, commercial buildings, villas and chalets according to project requirements.
Civil engineering
Public works and road construction, development of galleries, collectors and networks, civil engineering structures, earthworks, urban development, foundations and demolition.
Reviews

Aggregated rating

Aggregated rating
4.7
of 5

Aggregated from 15 reviews across all connected sources

Sources
GGoogle4.715
★TrustpilotSoon
PProvenExpertSoon

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Location

Route du Manège 63
1950 Sion
Opening hours
Mon
08:00 - 17:30
Tue
08:00 - 17:30
Wed
08:00 - 17:30
Thu
08:00 - 17:30
Fri
08:00 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.857.385
Founded
1972 · 54 years
Last commercial register change
May 12, 2026
Employees
51 to 100

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