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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesRoofingEvolèneRUMPF SA
RUMPF SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

RUMPF SA provides roofing, sheet metal work, sanitary installations and heating services. The company carries out renovation and new-build work and also handles waterproofing, insulation and related construction services.

AI-generated
Offering

Products & services

Industry:RoofingSheet Metal Work
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3.9/5

RUMPF SA

✓ Offered
3
Roof covering and roofing
Renovation and installation of roof covering and roofing, insulation and waterproofing; roofs with tiles, terracotta, concrete, natural slate, wooden shingles, flat roofs in bitumen or synthetic.
Sheet metal work
Roof protection, chimneys and roof windows; internal gutters, flashings, fascias, formed sheet metal for pitched or flat roofs, dormers, decorative elements and lightning protection.
Plumbing and heating
Sanitary installation in renovation or new construction; bathrooms, showers, WCs, saunas, whirlpools, heat pumps, underfloor heating and oil, gas or wood boilers.
Trust & reputation

ranQ Trust Score of RUMPF SA: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

RUMPF SA scores 56.8 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.73.124%
  • 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.35.310%
  • 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.35.08%
RUMPF SA 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%
RUMPF SA scores 85.0 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).85.022%
RUMPF SA scores 8.0 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 35.8.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

RUMPF SA 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 3 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 3 reviews across all connected sources

Sources
GGoogle53
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Route de Sonville 31
1983 Evolène

At a glance

Legal form
Corporation
UID
CHE-109.074.028
Founded
2001 · 25 years
Last commercial register change
September 9, 2021
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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