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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesMatranCaltech Sàrl
Caltech Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Caltech Sàrl provides installation and maintenance services for heating and sanitary systems and offers emergency intervention services. Services listed on the website include heat pumps (geothermal probe, air/water), oil, gas and pellet boilers, regulation and ventilation, water softening, boiler descaling, system flushing and solar installations.

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Products & services

Industry:Plumbing & Building Services
✓ Offered9
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4.0/5

Caltech Sàrl

Heating system installation
Installation of heating systems, advice on technologies, heat pumps, oil, gas or pellet boilers, solar installation.
Sanitary installation
Sanitary installation, advice for all sanitary installations, plumbing, emergency service for water leaks and sanitary issues.
Maintenance and 24/24 emergency service
Periodic maintenance of heating installations, maintenance subscription and repair service, emergency interventions 24h/24h.
Control and ventilation
Control of heating and ventilation installations, integrated into heating and maintenance services.
Heat pumps
Heat pumps with geothermal probe, outdoor air/water and indoor air/water, with advice on choosing the technology.
Burners and gas
Interventions related to burners and gas as part of heating installations.
Water softener
Water softeners for sanitary and heating installations.
Heating system sludge removal
Cleaning and sludge removal for heating installations.
Boiler descaling
Boiler descaling for the maintenance of sanitary installations.
Trust & reputation

ranQ Trust Score of Caltech Sàrl: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Caltech Sàrl scores 63.9 out of 100 points in the Reputation area of the ranQ Trust Score. This area carries 42% of the weighting.
x
CriterionValueWeight
  • Review quality: The average rating across all connected sources, smoothed against the industry mean. So 5.0 stars from three reviews do not outrank 4.7 from three hundred.70.824%
  • Review volume: The number of reviews across all sources. The scale is logarithmic: the first reviews count the most, and the maximum is reached at 50 reviews.27.910%
  • Review recency: The age of the most recent review. Two-year-old reviews deliberately sit in the middle, because that is normal for Swiss SMEs. Only after three years without a new voice does the value drop markedly.88.08%
Caltech Sàrl scores 75.6 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.70.212%
  • 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%
Caltech Sàrl 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%
Caltech Sàrl scores 11.4 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 35.11.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Caltech Sàrl reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 2 customer reviews. The data basis is 96%, 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.

Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

Further sources are added continuously and factored into the ranQ Rating.

Knowledge

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Comparisons

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Location

Impasse de Champ-Riond 28
1753 Matran
Opening hours
Mon
07:30 - 17:30
Tue
07:30 - 17:30
Wed
07:30 - 17:30
Thu
07:30 - 17:30
Fri
07:30 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-280.279.583
Founded
2020 · 6 years
Last commercial register change
May 28, 2026
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.85.03%
    • Full methodology

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