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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceWeinfeldenWiesli Holzbau AG
Wiesli Holzbau AG Logo
Verified· 4 sourcesTrust Score
Summary

About the company

The core activity of Wiesli Holzbau AG is the planning, execution and renovation of timber construction work, including prefabricated construction, carpentry, energy-efficient renovations, conversion work, small buildings and terrace decking.

AI-generated
Offering

Products & services

Industry:Building Maintenance
✓ Offered8
Conversion work
Conversion work of all kinds, including conversion projects carried out with experience and foresight; execution of house conversions and related timber construction work.
Planning & tachymeter
Timber construction planning from the building permit submission to the detail plan, as well as digital 3D surveying with tachymeter, including 3D as-built surveys, façade and terrain measurements.
Element construction
Timber elements for single-family homes, attic storey extensions, extensions and canopies; planning, production in the workshop and fast erection.
Building joinery
Doors, gates, stairs, built-in wardrobes and various furniture in the field of building joinery; custom execution according to customer wishes.
Energy retrofits
Renovation of building envelopes, basement ceilings, attic spaces and closing doors as part of energy retrofits.
Small buildings
Garages, carports, roof extensions, canopies and roof windows for smaller construction projects; advice and conscientious execution.
Terrace gratings
Wooden terrace gratings, planned and built with many years of experience and hands-on know-how.
Roof windows
Installation of roof windows, especially in attic conversions, for more daylight and a cosier living atmosphere; VELUX partner.
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4.1/5

Wiesli Holzbau AG

Trust & reputation

ranQ Trust Score of Wiesli Holzbau AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 100% · As of October 2026

Wiesli Holzbau AG scores 66.5 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.72.524%
  • 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.49.510%
  • 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%
Wiesli Holzbau AG scores 92.3 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.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%
Wiesli Holzbau AG scores 86.7 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).86.722%
Wiesli Holzbau AG scores 33.6 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 35.57.14%
  • Media authority: Quality and number of editorial mentions, weighted by the importance of the source, plus the recency of the latest high-quality mention.10.04%
Qualifications+0.00

Wiesli Holzbau AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.7 out of 5 stars from 6 customer reviews. As of October 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

Reviews

Aggregated rating

Aggregated rating
4.7
of 5

Aggregated from 6 reviews across all connected sources

Sources
GGoogle4.76
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

September 25, 2025Media
100 Jahre Wiesli Holzbau AG
kreuzlinger-nachrichten.ch
April 15, 2016Media
95 Jahre im Familienbetrieb
tagblatt.ch

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Location

Eierlenstrasse 6
8570 Weinfelden
Opening hours
Mon
06:00 - 18:00
Tue
06:00 - 18:00
Wed
06:00 - 18:00
Thu
06:00 - 18:00
Fri
06:00 - 18:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.104.894
Founded
1998 · 28 years
Last commercial register change
May 22, 2019
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.70.03%
    • Full methodology

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