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

About the company

Adelbert Meyer is a trades business for roofing and metalwork offering roof renovations, new roof construction and roof maintenance. Services include pitched and flat roof work, roof windows, lightning protection, façade work and flood-protection measures.

AI-generated
Offering

Products & services

Industry:Roofing
✓ Offered10
Pitched roof renovation/new build
Pitched-roof renovations, roof repairs and new roof coverings for private and business customers; specific damage remediation, roof inspections and advice for new builds or conversions.
Flat roof renovation/new build
Flat-roof renovations, repairs and new builds for private and industry clients; maintenance, removal of moisture and damage, and advice on green roofs and insulation.
Roof service/maintenance
Roof inspections, roof cleaning and roof maintenance for flat and pitched roofs; repair of minor damage, checking roof windows, chimneys, gutters and lightning protection systems.
Sheet metal work
Sheet metal work on the roof and facade, including gutters, downspouts/chutes, chimney cladding, roof edges, roof vents, drainpipes and window sills.
Lightning protection
Planning and installation of lightning protection systems and lightning conductors for new builds and existing buildings, including support with GVB cost contributions.
Facades
Eternit, metal and Prefa facades for renovation or new build; advice on design, durability, thermal insulation and energy-efficient execution.
Roof windows
Installation, replacement and repair of roof windows, in particular Velux roof windows, for residential and commercial buildings as well as new builds.
Flood protection
Installation of flood protection systems for houses, basements, garages and driveways; protection against penetrating water via doors, windows and gates.
Marten damage
Repairing marten damage to the roof, locating the nest, repairing the damaged roof structure and instructions for sealing possible entry points.
Renovation of heritage-protected buildings
Renovations and conversions of heritage-protected or listed buildings; coordination with Heimatschutz, selection of materials and careful execution.
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4.4/5

Adelbert Meyer

Trust & reputation

ranQ Trust Score of Adelbert Meyer: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

Adelbert Meyer scores 89.2 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.81.624%
  • 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.99.010%
  • 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.100.08%
Adelbert Meyer scores 85.2 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.82.07%
Adelbert Meyer 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%
Adelbert Meyer scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Adelbert Meyer 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 48 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
4.7
of 5

Aggregated from 48 reviews across all connected sources

Sources
GGoogle4.748
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Sängeliweg 27
4900 Langenthal
Opening hours
Mon
07:00 - 12:00, 13:15 - 17:30
Tue
07:00 - 12:00, 13:15 - 17:30
Wed
07:00 - 12:00, 13:15 - 17:30
Thu
07:00 - 12:00, 13:15 - 17:30
Fri
07:00 - 12:00, 13:15 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Sole proprietorship
UID
CHE-106.266.867
Founded
1988 · 38 years
Employees
21 to 50
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.
67.0
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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