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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,888 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesLangenthalSwiss GU Group GmbH
Swiss GU Group GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Swiss GU Group GmbH is a construction and building-services company that plans, designs and carries out building projects. Its services include complete renovations, new builds and conversions, floor covering installation (tiles, parquet, laminate), subfloors, insulation and underfloor heating, plastering and painting, roofing and sheet-metal work, sanitary and heating installations, electrical installations and project development.

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Products & services

Industry:Plumbing & Building Services
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Swiss GU Group GmbH

✓ Offered10
Property development
Real estate projects from the first idea to the completed construction project, including building permits, turnkey handover, utilisation concepts, site searches and financing advice.
General and total contractor for conversion and renovation
Conversion and renovation projects as a general and total contractor, with condition analyses, utilisation concepts, coordination of trades and execution up to handover of the construction site.
Plumbing – heating
Maintenance, repairs and replacement of heating systems as well as planning, ordering, installation and commissioning of new heating units; plus work in the bathroom and sanitary sector.
Tile flooring – parquet – laminate
Installation of tile flooring, parquet and laminate, as well as ordering materials via suppliers in Europe and professional execution of the floor coverings.
Subfloors
Construction of subfloors, hard concrete floors, flowing screeds and anhydrite screeds for new builds and existing properties.
Insulation and underfloor heating
Insulation and underfloor heating installations in new builds and conversions, including planning and organisation of the complete heating installation with ancillary works.
Painting and plastering work
Interior plasters, exterior plasters, renovation plasters, external thermal insulation, facade coatings and drywall with walls, ceilings, cladding and liner panels.
Seamless floor coverings
Seamless floor and wall coatings with Pandomo Loft, epoxy resins, PU coatings and liquid plastic for interior and exterior areas.
Electrical installations
Electrical installations for houses and building plots, including renovation of defective systems and work using modern materials and technologies.
Flat roof and waterproofing
Flat roof waterproofing for industrial, commercial and residential buildings, including garages, carports, balconies, terraces, renovation of older buildings, sheet metal work and window connections.
Trust & reputation

ranQ Trust Score of Swiss GU Group GmbH: 3.6 out of 5.0

Trust Score3.6/ 5.0

Solid

x

Data basis 96% · As of October 2026

Swiss GU Group GmbH scores 54.3 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.50.024%
  • 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.45.610%
  • 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%
Swiss GU Group GmbH scores 57.1 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.39.612%
  • 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%
Swiss GU Group GmbH scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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).85.022%
Swiss GU Group GmbH scores 0.6 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 35.0.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Swiss GU Group GmbH reaches a ranQ Trust Score of 3.6 out of 5.0 — rated «Solid». The rating draws, among other things, on 3.4 out of 5 stars from 5 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
3.4
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle3.45
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Gaswerkstrasse 33
4900 Langenthal
Opening hours
Mon
08:30 - 18:30
Tue
08:30 - 18:30
Wed
08:30 - 18:30
Thu
08:30 - 18:30
Fri
08:30 - 18:30
Sat
08:30 - 13:30
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-352.834.764
Founded
2024 · 2 years
Last commercial register change
August 21, 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.
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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