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

About the company

Lyrenmann AG provides building-technology services, carrying out sanitary, sheet‑metal/roofing and heating installations. Offerings include bathroom renovations, ventilation systems, roof renovation, energy planning and related installation, planning and maintenance services.

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Offering

Products & services

Industry:Plumbing & Building Services
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4.0/5

Lyrenmann AG

✓ Offered7
Sanitary installation
Sanitary installations for new builds, conversions and renovations; kitchen connections, shower toilets, limescale converters, water softening systems, heat pump boilers, solar systems as well as repairs and replacement of individual components.
Bathroom renovation
Bathroom renovations and remodelling with 3D planning, cost estimates, selection of sanitary fixtures, coordination of tradespeople and implementation from design through completion.
Sheet metal work
Building sheet metal work for conversion and new-build projects; roof inspections, repairs, roof and gutter cleaning, pitched-roof sheet metal work, lightning protection, façade cladding and fall protection.
Roof renovation
Roof renovations and maintenance for pitched and flat roofs; inspection, repairs, insulation, waterproofing, re-roofing, final checks and coordination of all work.
Heating installation
Heating installations, renovations, repairs and service; air/water and brine/water heat pumps, wood-chip boilers, heating boilers, radiators, bathroom radiators and underfloor heating.
Energy planning
Advisory and planning for heat networks and district heating; feasibility studies, cost comparisons, clarification of regulations and subsidies as well as building submissions and specialist construction management.
Ventilation installation
Ventilation installations for living spaces; installation of fans and ventilation ducts, bathroom fans and filter changes to ensure healthy indoor air quality.
Trust & reputation

ranQ Trust Score of Lyrenmann AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Lyrenmann AG scores 53.8 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.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.35.08%
Lyrenmann AG scores 84.3 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.75.012%
  • 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%
Lyrenmann AG 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%
Lyrenmann AG 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

Lyrenmann AG reaches a ranQ Trust Score of 4.0 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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Location

Weststrasse 4
8400 Winterthur
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
07:30 - 12:00, 13:00 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-302.660.953
Founded
2019 · 7 years
Last commercial register change
August 8, 2025
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.95.03%
    • Full methodology

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