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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,701 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesEstavayer-Le-LacCaltech Sàrl
Caltech Sàrl Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Caltech Sàrl delivers installation, maintenance and emergency repair services for heating and sanitary systems. Its services include heating maintenance and regulation, ventilation, heat pumps (ground probe and air-to-water), oil/gas/pellet boilers, water softeners, solar installations, boiler descaling and 24/7 emergency response.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered9
Heating system installation
Installation of heating systems, advice on different technologies, heat pumps, oil, gas and pellet boilers, solar installation.
Sanitary installation
Sanitary installation, advice on all sanitary facilities, plumbing and interventions in case of water leaks or sanitary problems.
Maintenance and breakdown service 24/24
Maintenance and breakdown subscription for heating and plumbing, interventions several times per year, emergency service 24/24.
Heat pumps
Advice and installation of heat pumps with geothermal borehole, outdoor air/water and indoor air/water.
Control and ventilation
Control of heating installations and ventilation associated with heating systems.
Burner and gas
Interventions and services related to burners and gas installations.
Water softener
Installation or servicing of water softeners for sanitary installations.
Heating sludge removal
Sludge removal of heating installations to improve the operation and maintenance of the system.
Boiler descaling
Descaling of boilers for maintaining hot water installations.
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3.8/5

Caltech Sàrl

Trust & reputation

ranQ Trust Score of Caltech Sàrl: 3.8 out of 5.0

Trust Score3.8/ 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 62.7 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.50.012%
  • 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.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 3.8 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

Le Piolet 20
1470 Estavayer-Le-Lac
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
Branch
UID
CHE-477.180.086
Founded
2023 · 3 years
Last commercial register change
March 14, 2023
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.
76.0
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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