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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding ConstructionPorselDa Costa Sàrl
Da Costa Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Da Costa Sàrl is a construction company offering masonry, reinforced concrete, tiling and building renovation services. It also carries out earthworks, civil engineering and public works, and provides scaffolding rental.

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Offering

Products & services

Industry:Building ConstructionGeneral Contractors
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Da Costa Sàrl

✓ Offered
10
Masonry
Masonry for new builds, alterations and building renovations; work on apartment buildings, villas, garages and other structures.
Reinforced concrete
Reinforced concrete works for buildings, new builds and alterations; associated masonry services and on-site execution.
Tiling
Tiling installation and tile work for new buildings, alterations and renovations; integrated into construction and building services.
Building renovation and conversions
Renovation and transformation of buildings, including work on existing structures and adaptation of housing or ancillary building projects.
Building work
Building work for new builds, alterations, renovations and related structures in the structural shell sector.
Earthworks
Earthworks for construction sites, site preparation and work related to foundations and outdoor facilities.
Civil engineering
Civil engineering for construction works and infrastructure, with services related to sites and networks.
Concrete drilling
Concrete drilling for construction work and intervention on existing structures.
Pipework
Pipework for construction sites and network works within building and civil engineering projects.
Scaffold rental
Scaffold rental for construction sites, renovation and transformation work.
Trust & reputation

ranQ Trust Score of Da Costa Sàrl: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

Da Costa Sàrl scores 52.1 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.53.824%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.49.510%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.50.08%
Da Costa Sàrl scores 83.0 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.100.012%
  • 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%
Da Costa Sàrl 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%
Da Costa Sàrl scores 10.0 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.10.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Da Costa Sàrl reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 3.7 out of 5 stars from 6 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
3.7
of 5

Aggregated from 6 reviews across all connected sources

Sources
GGoogle3.76
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Knowledge

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Comparisons

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Location

La Perreire
1699 Porsel
Opening hours
Mon
08:00 - 12:00, 13:30 - 17:00
Tue
08:00 - 12:00, 13:30 - 17:00
Wed
08:00 - 12:00, 13:30 - 17:00
Thu
08:00 - 12:00, 13:30 - 17:00
Fri
08:00 - 12:00, 13:30 - 17:00
Sat
08:00 - 12:00, 13:30 - 17:00
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-109.575.974
Founded
2009 · 17 years
Last commercial register change
June 24, 2009
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.
88.0
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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