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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryIndustryGlass, Ceramics, Stone & Construction Materials IndustryGockhausenRHW Surface AG
RHW Surface AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Petra Steinpflege is the processing and maintenance of natural stones, artificial stones, ceramic coverings, stone surfaces and concrete surfaces. This includes specific services such as grinding and protective treatments, surface refinement, impregnations, color removal, stain removal and removal of graffiti.

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Offering

Products & services

Industry:Glass, Ceramics, Stone & Construction Materials Industry
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3.9/5

RHW Surface AG

✓ Offered3
Processing of natural stone, artificial stone, ceramic coverings, stone surfaces and concrete surfaces
Processing of natural stone, artificial stone, ceramic coverings, stone surfaces and concrete surfaces in residential areas, stairwells, commercial buildings, facades, terraces, retail premises, school buildings and industrial facilities.
Specialised cleaning of natural stone, artificial stone, ceramic coverings, stone surfaces and concrete surfaces
Specialised cleaning of floor coverings and facades, facade cleaning, graffiti removal, stain removal as well as cleaning of various types of soiling on these surfaces.
Grinding and protective treatments
Grinding work on stone floors and stone surfaces as well as surface finishing and protective treatments with impregnation against dirt, algae growth, damage from sprays, stains and risk of slipping.
Trust & reputation

ranQ Trust Score of RHW Surface AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

RHW Surface AG scores 52.7 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.68.224%
  • 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.17.610%
  • 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.50.08%
RHW Surface 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%
RHW Surface 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%
RHW Surface AG scores 0.0 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 35.0.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

RHW Surface AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 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
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Tobelhofstrasse 328
8044 Gockhausen
Opening hours
Mon
07:00 - 19:00
Tue
07:00 - 19:00
Wed
07:00 - 19:00
Thu
07:00 - 19:00
Fri
07:00 - 19:00
Sat
07:00 - 19:00
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.525.511
Founded
1993 · 33 years
Last commercial register change
December 1, 2022
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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