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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesElsauGP Haustechnik GmbH
GP Haustechnik GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

GP Haustechnik GmbH is a building-services engineering and planning firm offering sanitary system design, heating and ventilation concepts, and technical expert assessments. Services also include consulting, cost calculations, preparation of plans and tender documentation.

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Products & services

Industry:Plumbing & Building Services
✓ Offered
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4.0/5

GP Haustechnik GmbH

5
Sanitary planning
Plan and calculate water pipes from the service connection to the fine distribution within the building, and wastewater pipes up to the sewer in the street; prepare plans for special media, costs and tenders.
Heating
Design and calculate heat pump, gas, wood chip and pellet heating systems; clarify suitable heating solutions and develop energy concepts.
Ventilation
Conceptualize building ventilation systems and plan ventilation installations for residential developments, restaurants, halls, commercial buildings and industrial halls, including Minergie® buildings and the food industry.
Consulting
Advise architects, authorities and clients; present alternatives, compare costs and benefits of different options and outline the pros and cons of solutions.
Expertises
As an independent party, inspect and measure third-party systems to verify correct sizing and performance, for example in case of pressure fluctuations, water temperature or flow velocity.
Trust & reputation

ranQ Trust Score of GP Haustechnik GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

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Data basis 54% · As of October 2026

GP Haustechnik 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%
GP Haustechnik GmbH scores 67.8 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.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%
GP Haustechnik 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%
GP Haustechnik GmbH scores 25.7 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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

GP Haustechnik GmbH reaches a ranQ Trust Score of 4.0 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

Im Zauner 9
8352 Elsau

At a glance

Legal form
Limited Liability Company
UID
CHE-448.626.186
Founded
2021 · 5 years
Last commercial register change
August 6, 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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