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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSealing & InsulationGretzenbachrefubau AG
refubau AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of refubau AG includes the planning and execution of work in the field of flat roof construction, sealing, lightning protection and consulting. Specifically, this includes: flat roof construction (new construction and renovation), sealing (liquid plastic sealing, terrace sealing), lightning protection (planning and installation of lightning protection systems), and consulting (for building owners and other interested parties). The company thus offers a comprehensive range of services in the field of roof and sealing technology.

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Products & services

Industry:Sealing & Insulation
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3.7/5

refubau AG

✓ Offered3
Waterproofing
Flat roof construction, liquid-plastic waterproofing, terrace waterproofing and terrace landscaping, paving slab coverings, fall protection, green roofs, flat roof maintenance.
Consulting
Planning and quality assurance for waterproofing, support during execution, tailor-made estimates based on SIA standards and NPK catalogues.
Lightning protection
Design and installation of lightning protection systems for buildings, earthing concepts, external lightning protection using copper or aluminium wires on the external façade.
Trust & reputation

ranQ Trust Score of refubau AG: 3.7 out of 5.0

Trust Score3.7/ 5.0

Solid

x

Data basis 96% · As of October 2026

refubau 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%
refubau AG scores 64.1 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.50.012%
  • 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%
refubau AG 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%
refubau AG scores 4.0 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 35.4.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

refubau AG reaches a ranQ Trust Score of 3.7 out of 5.0 — rated «Solid». 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

Güterstrasse 19
5014 Gretzenbach
Opening hours
Mon
07:30 - 11:30, 13:30 - 16:30
Tue
07:30 - 11:30, 13:30 - 16:30
Wed
07:30 - 11:30, 13:30 - 16:30
Thu
07:30 - 11:30, 13:30 - 16:30
Fri
07:30 - 11:30, 13:30 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-379.879.392
Founded
2023 · 3 years
Last commercial register change
March 21, 2023
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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