ranQ
ranQ
ranQ
DirectoryIndustriesPlacesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The leading AI company directory, built to boost AI visibility.

DEENFRIT
Product
  • Pricing
  • Directory
  • Industries
  • Trust Score
Company
  • About
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesRenens VdFürst S.A.
Fürst S.A. Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Furst SA is a service provider in the field of heating technology and energy optimization. The core activities include: installation and maintenance of heating systems, revision and maintenance of heating systems, renovation and modernization of heating systems, descaling of hot water tanks, decalcification of heating systems, optimization of energy efficiency of heating systems, and service and repair of heating systems, including 24/7 emergency service. The company thus offers a wide range of services in the field of heating technology and energy optimization.

AI-generated
Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered10
Heating system installation
Sales and installation of heating systems for all energy sources: solar thermal, heat pumps, gas, pellets, wood, heating oil and district heating.
Heating maintenance
Annual maintenance contracts for heating installations, with periodic maintenance, performance efficiency checks and burner servicing.
Heating breakdown service 7/7
Breakdown service 7 days a week for heating and burners, with rapid intervention, after-sales service and equipped workshop vehicles.
Burner inspection and revision
Annual revision of burners for safety, compliance with standards and improved system efficiency.
Cistern inspection and servicing
Inspection, servicing and decontamination of cisterns, with state approval listed on the site.
Heating system renovation
Renovation and servicing of heating installations, with modernisation and adaptation of existing systems.
Energy optimisation
Advice and energy optimisation for heating installations to improve comfort and efficiency.
Descaling of water heaters
Descaling of water heaters for maintenance and to keep the sanitary installation working properly.
Heating system flushing
Flushing and sludge removal of central heating to clean the circuits and improve system operation.
After-sales service
After-sales service for heating installations, including monitoring, support and intervention in case of problems.
LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
4.1/5

Fürst S.A.

Trust & reputation

ranQ Trust Score of Fürst S.A.: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

Fürst S.A. scores 64.7 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.51.724%
  • 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.77.410%
  • 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%
Fürst S.A. scores 85.5 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.100.012%
  • 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.55.07%
Fürst S.A. 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%
Fürst S.A. scores 7.7 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 35.7.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Fürst S.A. reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 3.9 out of 5 stars from 20 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
3.9
of 5

Aggregated from 20 reviews across all connected sources

Sources
GGoogle3.920
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

No knowledge articles yet

Once Fürst S.A. has claimed this profile, we'll publish editorial articles and case studies here together.

Get started
Comparisons

Fürst S.A. in comparison

Soon

Industry comparisons are coming soon

We're preparing industry comparisons that rank Fürst S.A. by reviews, experience and specialisations.

Is this your company?

Claim the company profile of Fürst S.A. to make its contact details visible. With a plan we additionally create and publish industry comparisons, articles and much more.

Secure profile

Location

Rue du Chêne 36
1020 Renens Vd
Opening hours
Mon
08:00 - 11:45, 13:30 - 16:45
Tue
08:00 - 11:45, 13:30 - 16:45
Wed
07:45 - 11:45, 13:30 - 16:45
Thu
08:00 - 11:45, 13:30 - 16:45
Fri
08:00 - 11:45, 13:30 - 16:45
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.019.596
Founded
1970 · 56 years
Last commercial register change
June 21, 2024
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.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

    Similar companies

    AS
    Amiar Services Sàrl
    Chailly-Montreux
    DS
    DF Sanitaire SA
    Belmont-Sur-Lausanne
    R+
    R. + M. Schenkel SA
    Coppet
    TS
    Taxa SA
    Forel (Lavaux)
    BH
    BS Halili Sanitaire Sàrl
    Lavigny
    NC
    NR Chauffage Sanitaire Sàrl
    Chavornay
    BS
    Brûleur services Yverdon Sàrl
    Yverdon-Les-Bains
    EC
    ECO Chauffage économique Georges Schlatter
    Nyon