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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,544 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringFreienbachNäf Tech AG
Näf Tech AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Naef GROUP is the renovation and maintenance of water-carrying pipes in buildings, particularly underfloor heating and drinking water pipes. This includes specific services such as milling underfloor heating, polishing and optimizing underfloor heating distributors, as well as the renovation of drinking water pipes.

AI-generated
Offering

Products & services

Industry:Technical Consulting & Engineering
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4.8/5

Näf Tech AG

✓ Offered5
Renovate underfloor heating
Renovate underfloor heating with the HAT system, carry out a preliminary condition analysis on site, perform internal cleaning and internal pipe coating, modernise heating manifolds, install magnetic flow filters and individual room controls.
Renovate drinking water pipes
Renovate drinking water pipes from the inside with ANROSAN, carry out a condition analysis on site, apply a cement-based coating without epoxy resin, carry out repairs in occupied buildings, provide temporary water supply arrangements.
Optimize underfloor heating manifolds
Optimise heating manifolds for energy efficiency, improve heat distribution and energy costs, use constant-value control stations or remote control, check settings, and retrofit actuators, control devices and sensors.
Polish underfloor heating
Preventively clean and fine-polish underfloor heating with the HAT system light, remove deposits, without applying a new internal coating, for older but modern systems with impaired heat distribution.
Mill-in underfloor heating
Mill retrofit underfloor heating into existing subfloor substrates, mill groove patterns, lay multilayer composite pipes, without a build-up layer, also possible in dry construction elements.
Trust & reputation

ranQ Trust Score of Näf Tech AG: 4.8 out of 5.0

Trust Score4.8/ 5.0

Excellent

x

Data basis 96% · As of October 2026

Näf Tech AG scores 99.8 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.99.624%
  • 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.100.010%
  • 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.100.08%
Näf Tech AG scores 93.9 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.82.07%
Näf Tech AG 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%
Näf Tech AG scores 85.7 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 35.85.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Näf Tech AG reaches a ranQ Trust Score of 4.8 out of 5.0 — rated «Excellent». The rating draws, among other things, on 5.0 out of 5 stars from 803 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 803 reviews across all connected sources

Sources
GGoogle5803
★TrustpilotSoon
PProvenExpertSoon

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

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Comparisons

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Location

Wolleraustrasse 15n
8807 Freienbach
Opening hours
Mon
07:00 - 12:00, 13:00 - 17:00
Tue
07:00 - 12:00, 13:00 - 17:00
Wed
07:00 - 12:00, 13:00 - 17:00
Thu
07:00 - 12:00, 13:00 - 17:00
Fri
07:00 - 12:00, 13:00 - 16:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-103.219.794
Founded
2007 · 19 years
Last commercial register change
March 5, 2024
Employees
21 to 50
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.85.03%
    • Full methodology

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