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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumberKerzersAK Bautechnik GmbH
AK Bautechnik GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of AK Bautechnik GmbH encompasses various services in the field of building technology, particularly: Sanitary work (total renovations, bathroom conversions), heating systems (heat pumps, air-water heat pumps, earth probes, pellet heating systems), ventilation systems (room comfort ventilation, fans, kitchen exhausts), painting and plastering work (interior and exterior work, wallpapering, exterior thermal insulation, lightweight walls, ceilings), and renovations and new constructions of buildings. The company offers a comprehensive range of services in the field of building technology and positions itself as a full-service provider for all aspects of building equipment and maintenance.

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Service area

Offering

Products & services

Industry:Plumber
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4.1/5

AK Bautechnik GmbH

✓ Offered6
Sanitary installations
Sanitary installations for new builds, conversions and renovations; full refurbishments, bathroom makeovers, conversions, new builds, service and 24-hour emergency service for burst pipes or blockages.
Heating system installations
Heating systems for conversions and new builds; air-water heat pumps, ground source (borehole) heat pumps, pellet heating as well as planning, coordination and installation.
Ventilation systems
Ventilation systems for room comfort, fans and kitchen extractor hoods; offered as part of projects in single-family homes, multi-family buildings and commercial properties.
Painting work
Interior and exterior painting, wallpapering, and execution in connection with new builds, conversions and renovations.
Plastering and drywall work
Interior and exterior plastering, plaster renders and dry construction work, lightweight partition walls and ceilings.
Exterior thermal insulation
Exterior thermal insulation for buildings as part of painting and plastering work.
Trust & reputation

ranQ Trust Score of AK Bautechnik GmbH: 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.

AK Bautechnik 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%
AK Bautechnik GmbH scores 77.2 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
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CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.86.512%
  • 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%
AK Bautechnik GmbH scores 86.7 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).86.722%
AK Bautechnik GmbH scores 77.1 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
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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 35.77.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

AK Bautechnik 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 November 2026.

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

Knowledge

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Location

Vordere Gasse 16
3210 Kerzers

At a glance

Legal form
Limited Liability Company
UID
CHE-161.426.328
Founded
2016 · 10 years
Last commercial register change
May 17, 2023
Employees
1 to 10

Active in 1 of 26 cantons · 1 municipality

  • FRKerzers
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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