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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceGelterkindenGGS AG
GGS AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core business of GGS AG includes the areas of timber construction, roofing, sheet metal work and alternative energies. In particular, the company offers services such as timber construction, roof construction, timber element construction, facades, terrace decking, roof windows and roof dormers, sheet metal work, lightning protection, liquid plastic, roofing, renovations, maintenance work and solar systems.

AI-generated
Offering

Products & services

Industry:Building MaintenanceTimber Construction & Carpentry
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4.4/5

GGS AG

Sheet Metal Work
Solar & Photovoltaics
✓ Offered7
Timber construction
Timber construction with roof structures, timber element construction, extensions and loft conversions, residential buildings, façades, roof dormers as well as terraces and seating areas.
Architecture and construction management
Architectural and planning services including building permit submission, execution and detail plans as well as construction management with scheduling, cost control, coordination and quality control.
Sheet-metal work
Conventional sheet-metal work, lightning protection and liquid-plastic work for metal flashings, claddings and waterproofing on buildings and special locations.
Roofing
Installation and maintenance of pitched roofs, flat roofs and sheet-metal roofs including tile, Eternit and solar roof solutions.
Solar systems
Consulting and implementation of photovoltaic systems as in-roof and on-roof systems including components for inverters and storage systems.
Renovations
Roof renovations and façade renovations to preserve or increase the building value as well as to improve energy consumption and the building envelope.
Service work
Periodic lightning protection inspections, roof maintenance and gutter cleaning, terrace maintenance, replacement of roof windows, flat roof maintenance and cleaning of solar cells.
Trust & reputation

ranQ Trust Score of GGS AG: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 100% · As of October 2026

GGS AG scores 83.7 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.79.624%
  • 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.84.710%
  • 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.95.08%
GGS AG scores 91.1 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.92.512%
  • 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.90.07%
GGS 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%
GGS AG scores 28.6 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 35.57.14%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.0.04%
Qualifications+0.00

GGS AG reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.7 out of 5 stars from 27 customer reviews. As of October 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.7
of 5

Aggregated from 27 reviews across all connected sources

Sources
GGoogle4.727
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

January 22, 2018Media
Preisgekrönt: Diese Firma aus Gelterkinden setzt auf nachhaltige Unternehmensnachfolge
bzbasel.ch

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Location

Chapfweg 4
4460 Gelterkinden
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-357.764.668
Founded
2014 · 12 years
Last commercial register change
June 24, 2025
Employees
51 to 100
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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