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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesRoofingBaselJäggi Vollmer GmbH
Jäggi Vollmer GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Jäggi Vollmer GmbH encompasses two main areas: 1. Roofing and sheet metal work: The company offers services in the areas of roofing, façades, terraces, dormer windows, and gutters, including classic sheet metal work and elaborate custom-made products. 2. Sanitary installations: The company offers services in the areas of bathroom new builds and renovations, sanitary installations, maintenance work, alternative energies, and water damage restoration. Overall, the core activity of the company can be described as comprehensive services in the fields of roofing and sheet metal work, as well as sanitary installations.

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Offering

Products & services

Industry:RoofingSheet Metal Work
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4.4/5

Jäggi Vollmer GmbH

Solar & Photovoltaics
✓ Offered5
Sheet metal works
Sheet metal works for pitched roofs, flat roofs, terraces, gutters, downpipes, chimney flashings, wall copings, dormer cladding and special custom-made items.
Plumbing and sanitary works
Sanitary works for new builds and conversions, renovations and refurbishments, including bathroom refurbishments, sanitary installations, alternative energies and service work.
Photovoltaic systems
Photovoltaic systems and solar installations for generating alternative energy.
Water damage restoration
Water damage restoration with repair of damaged areas, pipe repair, drying, mould prevention, complete damage restoration and documentation for processing the insurance claim.
Service / Filters / Boiler
Maintenance work, filter replacement as well as boiler descaling and boiler replacement.
Trust & reputation

ranQ Trust Score of Jäggi Vollmer GmbH: 4.4 out of 5.0

Trust Score4.4/ 5.0

Very high

x

Data basis 96% · As of October 2026

Jäggi Vollmer GmbH scores 85.7 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.82.624%
  • 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.81.910%
  • 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%
Jäggi Vollmer GmbH scores 86.7 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.70.07%
Jäggi Vollmer GmbH 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%
Jäggi Vollmer GmbH 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

Jäggi Vollmer GmbH reaches a ranQ Trust Score of 4.4 out of 5.0 — rated «Very high». The rating draws, among other things, on 4.8 out of 5 stars from 24 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
4.8
of 5

Aggregated from 24 reviews across all connected sources

Sources
GGoogle4.824
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Horburgstrasse 96
4057 Basel
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
07:30 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-109.860.682
Founded
2002 · 24 years
Last commercial register change
September 7, 2026
Employees
11 to 20
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.
88.0
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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