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

About the company

B. Monnerat Sàrl provides sanitary, heating and solar installation services including project planning, installation and maintenance. Services listed on the website include complete sanitary systems (water, gas, drains), multiple heating systems (oil, wood/pellets, gas, heat pumps, solar), solar photovoltaic/thermal installations, maintenance tasks such as descaling and drain clearing, and industrial water and pump station work.

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Products & services

Industry:Plumbing & Building Services
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3.8/5

B. Monnerat Sàrl

✓ Offered
4
Sanitary installations
Complete sanitary installations for water, gas and drainage, installation of sanitary appliances, plumbing fixtures, pipework, water heaters, water softeners, water treatment and solar installations.
Heating systems
Heating for all systems with oil, wood, pellets, solar, gas and heat pumps, with refurbishment of boiler rooms, refurbishment of chimneys, radiators and underfloor heating.
Sanitary and heating maintenance
Descaling of water heaters, clearing blocked pipes, radiator valves and heating diagnostics for maintenance and troubleshooting of installations.
Industrial installations
Compressed air, water treatment, water network and pumping station for industrial applications.
Trust & reputation

ranQ Trust Score of B. Monnerat Sàrl: 3.8 out of 5.0

Trust Score3.8/ 5.0

High

x

Data basis 96% · As of October 2026

B. Monnerat Sàrl scores 61.9 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.67.924%
  • 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.40.910%
  • 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.70.08%
B. Monnerat Sàrl scores 67.8 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.55.07%
B. Monnerat Sàrl scores 85.0 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).85.022%
B. Monnerat Sàrl scores 3.1 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 35.3.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

B. Monnerat Sàrl reaches a ranQ Trust Score of 3.8 out of 5.0 — rated «High». The rating draws, among other things, on 4.5 out of 5 stars from 4 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
4.5
of 5

Aggregated from 4 reviews across all connected sources

Sources
GGoogle4.54
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Clos Dessus 37b
2742 Perrefitte
Opening hours
Mon
07:00 - 12:00, 13:30 - 17:30
Tue
07:00 - 12:00, 13:30 - 17:30
Wed
07:00 - 12:00, 13:30 - 17:30
Thu
07:00 - 12:00, 13:30 - 17:30
Fri
07:00 - 12:00, 13:30 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-278.103.101
Founded
2021 · 5 years
Last commercial register change
December 27, 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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