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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureFacade constructionLachen SzJosef Schwiter AG
Josef Schwiter AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Josef Schwiter AG is a roofing contractor. Its services include pitched and flat roofs, façades, photovoltaic systems, roof windows, roof repairs and maintenance.

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Presence

Service area

Offering

Products & services

Industry:Facade constructionRoofer
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4.3/5

Josef Schwiter AG

✓ Offered8
Pitched roof
Pitched roofs made of tiles, fibre-cement and sheet metal; re-roofing, renovation and maintenance according to SIA standards, including insulation and preparation for photovoltaics.
Flat roof
Flat roof waterproofing for new build and renovation; gravel, green and slab build-ups, leak detection, insulation, connections and maintenance contracts.
Facade
Ventilated façades made of Swisspearl Eternit/fibre-cement; planning, insulation, installation, renovation and advice on colour and structure.
Photovoltaic systems
Photovoltaic systems for roofs; planning, installation, maintenance, cleaning and subsidy application, on request as an in-roof (indach) solution.
Velux roof windows
Velux roof windows with installation and replacement; shading, insect protection and advice on glazing and operation.
Roof repair & service
Leak detection, emergency sealing, storm and hail damage, removal of moss and algae, as well as periodic maintenance and service contracts.
Slab paving
Slab paving on flat roofs, terraces and balconies; concrete or porcelain stoneware slabs, laid in a gravel bed or on pedestals.
Rent telehandler
Rental of a Manitou MRT 2550 with operator; lifting height up to 25 metres, attachment tools for construction, moves and work at height.
Trust & reputation

ranQ Trust Score of Josef Schwiter AG: 4.3 out of 5.0

Trust Score4.3/ 5.0

Very high

x

Data basis 96% · As of November 2026

Josef Schwiter AG scores 76.5 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.82.524%
  • 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.61.010%
  • 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.78.08%
Josef Schwiter AG scores 85.5 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%
Josef Schwiter AG scores 86.7 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).86.722%
Josef Schwiter AG scores 25.7 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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Josef Schwiter AG reaches a ranQ Trust Score of 4.3 out of 5.0 — rated «Very high». The rating draws, among other things, on 5.0 out of 5 stars from 10 customer reviews. The data basis is 96%, so the score is backed by part of the criteria. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 10 reviews across all connected sources

Sources
GGoogle510
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Steineggstrasse 18
8853 Lachen Sz
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-105.739.633
Founded
1975 · 51 years
Last commercial register change
February 1, 2024
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

    Active in 6 of 26 cantons · 12 municipalities

    • Central Switzerland
    • Bezirk Höfe
    • Bezirk March

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