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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInterior ConstructionRorschacherbergLEMM Umbauten GmbH
LEMM Umbauten GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

LEMM Umbauten GmbH is a family-run company that provides carpentry, interior fit-outs, kitchen installation as well as assembly, planning and repair services.

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Offering

Products & services

Industry:Interior ConstructionTimber Construction & Carpentry
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LEMM Umbauten GmbH

✓ Offered6
Joinery installation
Precise installation of joinery elements of all kinds, including made-to-measure built-in furniture and complex carpentry work.
Interior fit-out
Design and execution of interior spaces, from room layout and material selection through to the finished implementation.
Kitchen installation
Professional installation of kitchens, from planning to the final assembly of functional and durable kitchen units.
Consulting
Consulting for conversion and renovation projects, analysing requirements and developing suitable solution concepts.
Planning
Planning for conversion and renovation projects, with detailed plans and concepts for smooth execution.
Service and repair
Service and repair work after project completion, from small repairs to comprehensive maintenance work.
Trust & reputation

ranQ Trust Score of LEMM Umbauten GmbH

Trust Score

No score yet

x

A published score requires a data basis of at least 50% and data from at least two criteria groups other than identity. Missing evidence: Review quality, Review volume, Review recency, Media authority

Data basis 54% · As of October 2026

LEMM Umbauten GmbH has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
LEMM Umbauten GmbH scores 67.8 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.64.612%
  • 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%
LEMM Umbauten GmbH 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%
LEMM Umbauten GmbH 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%

The data basis is 54%, below the threshold at which ranQ publishes a score. Evidence is missing for: Review quality, Review volume, Review recency, Media authority. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Knowledge

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Location

Erlenstrasse 8b
9404 Rorschacherberg

At a glance

Legal form
Limited Liability Company
UID
CHE-206.263.183
Founded
2021 · 5 years
Last commercial register change
October 26, 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.
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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