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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,837 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInterior ConstructionLyssR. Hämmerli GmbH
R. Hämmerli GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

R. Hämmerli GmbH provides timber construction and joinery services, including roof and façade work, structural timber frames, windows, doors, terraces and galleries. The company’s services also cover cost estimates and submission dossiers, detailed planning, execution, insulation, Fermacell installation and glazing.

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Products & services

Industry:Interior ConstructionTimber Construction & Carpentry
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R. Hämmerli GmbH

✓ Offered9
Estimate and quotation preparation
Preparation of dossiers for small building permit applications, building specifications, quotations and execution descriptions.
Detailed planning
Tailored project planning based on wishes and ideas, developed into a personal project with experience.
Implementation
Implementation of construction projects and renovations, from planning through to execution.
Timber construction work
Roof windows, roof edges, under-roofing, facades, windows, stud constructions, insulation, Fermacell, house and interior doors, pergolas, terraces, galleries and railings.
Joinery work
Interior fit-out, wood panelling, parquet and laminate, cabinets, shelves, cladding, cloakrooms and benches.
Stairs
Planning and execution of stairs as a reference and scope of services.
Floors
Flooring works and floor coverings, shown in the references with a focus on parquet and laminate.
Cabinets / shelving
Cabinets, shelves and similar built-ins for interior spaces.
Facade work
Facade work on timber construction projects, including execution and references in the facade sector.
Trust & reputation

ranQ Trust Score of R. Hämmerli GmbH: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

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Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

R. Hämmerli 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.
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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%
R. Hämmerli GmbH scores 79.8 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.92.512%
  • 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%
R. Hämmerli GmbH scores 83.3 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
R. Hämmerli GmbH scores 5.7 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 35.5.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

R. Hämmerli GmbH reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, 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.

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Location

Grenzstrasse 20D
3250 Lyss

At a glance

Legal form
Limited Liability Company
UID
CHE-311.281.342
Founded
2014 · 12 years
Last commercial register change
November 16, 2020
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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