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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesUsterAmmann + Schmid AG, heizen mit Herz und Verstand.
Ammann + Schmid AG, heizen mit Herz und Verstand. Logo
Verified· 3 sourcesTrust Score
Summary

About the company

Ammann + Schmid AG, heizen mit Herz und Verstand. The company designs, installs, maintains and renovates heating systems and related energy solutions (heat pumps, pellet boilers, district heating, oil and gas systems), and provides solar/photovoltaic options as well as maintenance, service and repair contracts.

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Products & services

Industry:Plumbing & Building Services
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4.5/5

Ammann + Schmid AG, heizen mit Herz und Verstand.

✓ Offered9
Heating planning, installation and refurbishment
Planning, expert installation and refurbishment of heating systems for new builds, conversions and renovations; including new and replacement installations as well as maintenance and repairs.
Heat pump heating systems
Heat pump heating systems with air-water, brine-water or ground-source systems for new builds, conversions and renovations.
Pellet heating systems
Pellet heating systems for residential and commercial buildings, as part of heating systems for new builds, conversions and renovations.
District heating systems
District heating systems for new builds, conversions and renovations, as well as for replacement or new installation.
Solar thermal systems
Solar thermal systems as a heating and heat solution for buildings in new builds, conversions or renovations.
Photovoltaic systems
Photovoltaic systems for buildings, as supplementary energy generation in the context of new and replacement installations.
Oil heating systems
Oil heating systems as a heating system for new builds, conversions, renovations and replacement installations.
Natural gas heating systems
Natural gas heating systems as a heating system for new builds, conversions, renovations and replacement installations.
Maintenance contracts and on-call service
Tailor-made service contracts, maintenance subscriptions with an on-call option for emergencies outside business hours, as well as repair services.
Trust & reputation

ranQ Trust Score of Ammann + Schmid AG, heizen mit Herz und Verstand.: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 96% · As of October 2026

Ammann + Schmid AG, heizen mit Herz und Verstand. scores 92.0 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.91.924%
  • 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.89.710%
  • 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.95.08%
Ammann + Schmid AG, heizen mit Herz und Verstand. scores 72.8 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.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.55.07%
Ammann + Schmid AG, heizen mit Herz und Verstand. 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%
Ammann + Schmid AG, heizen mit Herz und Verstand. scores 77.1 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 35.77.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Ammann + Schmid AG, heizen mit Herz und Verstand. reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 5.0 out of 5 stars from 33 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 33 reviews across all connected sources

Sources
GGoogle533
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Freiestrasse 39
8610 Uster
Opening hours
Mon
24h
Tue
24h
Wed
24h
Thu
24h
Fri
24h
Sat
24h
Sun
24h

At a glance

Legal form
Corporation
UID
CHE-242.921.125
Founded
2020 · 6 years
Last commercial register change
January 16, 2025
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.100.06%
  • 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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