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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureRenovationHeidenHeller AG Wohnbauten
Heller AG Wohnbauten Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Heller AG Wohnbauten constructs and renovates residential and commercial buildings, and carries out conversions and extensions. Its services include timber and prefabricated construction, energy-efficient renovations, windows, carpentry, flooring, painting and property maintenance.

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Service area

Offering

Products & services

Industry:RenovationTimber construction
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Heller AG Wohnbauten

Painter
Tiler
✓ Offered9
Conventional timber construction
Conventional timber construction, from the classic roof truss to flat roofs and mono-pitched roofs, as well as timber frame walls, adaptations and renovations.
Prefabricated element construction
Element construction for houses and residential buildings with prefabrication in the workshop, tailored to wishes and needs; with fast construction and a sustainable, ecological building method.
Energy-efficient renovation
Energy-efficient renovation of properties, including analysis of the building envelope and energy consumption, renovation concept, implementation of the building envelope and PV.
Windows
Windows for wood, wood-metal, plastic and plastic-metal, with on-site measurement, consultation, installation, adjustments and, on request, cleaning.
Carpentry workshop
Carpentry work for furniture, kitchens, cupboards, tables and general interior fit-out—planned, manufactured and installed in-house.
Flooring
Floor and wall coverings in parquet, vinyl, laminate, carpet and cork, as well as ceramic tiles; consultation, sample selection and installation.
Painting
Painting work for renovations and new builds, including consultation and a color concept by an STF color designer.
Property services
Property services, for example replacing silicone joints, adjusting leaking windows, aligning kitchen fronts and making doors work smoothly.
Conversions, extensions and renovations
Conversions, extensions and renovations from a single source, with consultation and support for construction projects.
Trust & reputation

ranQ Trust Score of Heller AG Wohnbauten: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

Heller AG Wohnbauten 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%
Heller AG Wohnbauten scores 92.3 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%
Heller AG Wohnbauten 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%
Heller AG Wohnbauten scores 100.0 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 35.100.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Heller AG Wohnbauten 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 November 2026.

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

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Location

Tiefenau 6
9410 Heiden

At a glance

Legal form
Corporation
UID
CHE-176.855.224
Founded
2010 · 16 years
Last commercial register change
February 28, 2024
Employees
21 to 50

Active in 1 of 26 cantons

  • ARAppenzell Outer Rhodes
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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