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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureConstruction & Project ManagementChamSolay-Bau AG
Solay-Bau AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Solay-Bau AG is a general contractor for construction, renovations and energy projects. The company plans and coordinates new builds, conversions, refurbishments, solar systems, heat pumps and charging stations, and also offers real estate and project management services.

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Products & services

Industry:Construction & Project ManagementGeneral Contractors
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Solay-Bau AG

Solar & Photovoltaics
✓ Offered6
General contracting
Full project responsibility for construction work, including cost planning, building permit submission, coordination of all contractors and specialists, and handover.
Turnkey construction
New-build projects delivered turnkey, with integrated planning from architecture to building services, Minergie-capable building envelopes, material selection, and move-in-ready handover.
Renovation and refurbishment
Full refurbishments and energy upgrades, including work in occupied buildings, with phased execution, grant checks and preservation of property value.
Conversions and renovations
Layout changes, kitchen and bathroom remodelling, extensions and renovations of existing properties, with site management, cost estimates and clean workmanship.
Solar systems, heat pumps and charging stations
Photovoltaics, storage, heat pumps and charging stations planned as an integrated energy system with yield calculation, grant applications, grid connection, maintenance and monitoring.
Real estate and project management
Development, steering and management of sites and properties, including feasibility studies, client representation, authority liaison, marketing and handover management.
Trust & reputation

ranQ Trust Score of Solay-Bau AG

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Website authority, Media authority

Data basis 50% · As of October 2026

Solay-Bau AG has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Solay-Bau AG scores 42.7 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.0.012%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.55.07%
Solay-Bau AG scores 83.3 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).83.322%
Solay-Bau AG has no value in the Visibility area of the ranQ Trust Score because no data is available. The area carries 8% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Website authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%

The data basis is 50%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Website authority, Media authority. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Knowledge

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Location

Lorzenparkstrasse 2
6330 Cham

At a glance

Legal form
Corporation
UID
CHE-356.357.800
Founded
2026 · 0 years
Last commercial register change
August 31, 2026
Employees
1 to 10
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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