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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureGeneral ContractorsFrauenfeldTeWaTec GmbH
TeWaTec GmbH Logo
Verified· 2 sourcesTrust Score
Summary

About the company

The core activity of TEWATEC GmbH is the provision of services in the field of building technology and comprehensive renovations, particularly in the areas of heating, plumbing, ventilation, cooling, renovation and new construction. The company acts as a general contractor, bringing together specialists from various industries to offer comprehensive solutions for the planning, execution and maintenance of construction projects.

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Offering

Products & services

Industry:General Contractors
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4.0/5

TeWaTec GmbH

✓ Offered8
Building services engineering
Building services engineering for new builds, renovations and comprehensive renovations; planning, implementation, assembly, repair, maintenance and service of heating, sanitary, ventilation and refrigeration systems.
General contractor for new builds
General contractor for new-build projects; complete package with planning, inspection, construction execution, site management, turnkey object, site investigations, building analyses, profitability analyses and aspects of building law.
Heating
Planning, assembly, replacement, repair, maintenance and service of heating systems for single-family houses, multi-family houses, commercial properties and public buildings.
Heating system refurbishment
Refurbishment of heating systems; evaluation of the system, planning and installation of new systems, assembly, repair, renovation, maintenance and service for existing properties.
Sanitary installations
Planning, implementation and repair of sanitary installations; advice and planning for new builds and renovations, condition analyses, development of options, installation, acceptance, upkeep, service and maintenance.
Ventilation
Design, planning, implementation and commissioning of ventilation and air-conditioning systems; renovations, retrofit work, energy measurements, indoor air analyses, upkeep, service and maintenance.
Refrigeration
Implementation of refrigeration systems and air conditioning for private, commercial and industrial sectors; object-related analysis, planning of energy-efficient cooling systems and implementation of various refrigeration technologies.
Renovation
Renovations, conversions and modernizations; consultation, planning and execution of bathrooms, kitchens, house entrances, stairwells, terraces, house facades, floors, walls and underfloor heating.
Trust & reputation

ranQ Trust Score of TeWaTec GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 54% · As of October 2026

TeWaTec 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.
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%
TeWaTec GmbH scores 71.5 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.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.70.07%
TeWaTec 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%
TeWaTec GmbH scores 6.6 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 35.6.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

TeWaTec 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.

Knowledge

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Location

Laubgasse 53
8500 Frauenfeld

At a glance

Legal form
Limited Liability Company
UID
CHE-191.368.463
Founded
2021 · 5 years
Last commercial register change
January 11, 2024
Employees
11 to 20
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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