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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesMellingenBerisha Bau+Haustechnik AG
Berisha Bau+Haustechnik AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Berisha AG is a general and total contractor specializing in the planning, coordination and execution of construction projects, particularly in the areas of renovation, new construction and conversion. The core activities include consulting customers, creating offers, coordinating construction projects, executing construction work and accepting and inspecting construction projects to ensure the utmost customer satisfaction.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered8
New build
New build for living space and other construction projects, including consultation, planning, coordination and execution.
Conversions and renovations
Large and small conversions, changes to living space, refurbishment of older buildings as well as repairs inside and around the house.
Bathroom conversions
Bathroom and kitchen conversions, including individual planning, visualization of the offer and coordination of the construction phase.
Kitchen conversions
Kitchen conversions with consultation, planning and implementation as part of conversion projects.
Extensions and expansions
Extensions and expansions for existing buildings, from consultation and planning through to execution.
Construction consulting
Construction consulting for new builds, conversions and refurbishments, including a non-binding initial meeting and planning support.
Swimming pools
Swimming pools as part of the construction and conversion portfolio, with project consulting and coordination.
Exterior space design
Exterior space design for outdoor areas as part of construction and conversion projects.
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4.1/5

Berisha Bau+Haustechnik AG

Trust & reputation

ranQ Trust Score of Berisha Bau+Haustechnik AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Berisha Bau+Haustechnik AG 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%
Berisha Bau+Haustechnik AG scores 85.5 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.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.55.07%
Berisha Bau+Haustechnik AG 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%
Berisha Bau+Haustechnik AG 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

Berisha Bau+Haustechnik AG 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.

Knowledge

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Location

Industriestrasse 19
5507 Mellingen

At a glance

Legal form
Corporation
UID
CHE-114.363.751
Founded
2008 · 18 years
Last commercial register change
May 26, 2026
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.
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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