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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureTimber Construction & CarpentryGrasswilGrütter Block- und Holzbau GmbH
Grütter Block- und Holzbau GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Grütter Block- und Holzbau GmbH is the planning, production and assembly of wooden buildings, including log houses, timber frame constructions, renovations, facades, carports, pergolas, hall constructions, thermal insulation and flooring. Thus, the company offers a comprehensive range of services in the field of timber construction.

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Products & services

Industry:Timber Construction & Carpentry
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Grütter Block- und Holzbau GmbH

Log houses
Log timber houses and log houses made from regional timber, including natural log house, squared timber log house, as well as holiday home, garden house, chalet, sauna and garage/carport.
Timber element construction
Timber house and timber element houses for single-family homes, duplex and multi-storey timber buildings, in Minergie and Passive House standard with ecological wall build-ups.
Timber construction
Timber construction for roofs, in particular gable, lean-to, cripple hip and mansard roofs, as timber works for new builds and roof structures.
Conversions & renovations
Conversions and renovations with attic conversion, gallery, roof windows, extension, interior finishing and conservatory, as well as timber renovation and work with reclaimed wood.
Façade
Timber façades with untreated larch, pre-greyed spruce-fir cladding, shingle façades and expert surface treatments according to the RAL colour chart.
Carports & timber pergolas
Carports and pergolas made of timber, including covered seating area, grill house, balcony extension, garage, pavilion and terrace roofing.
Timber hall construction
Timber halls for cattle barns, livestock barns, machine halls, remise, horse stables, riding arenas, sports facilities as well as commercial and industrial halls.
Thermal, fire and acoustic insulation
Blown-in insulation for roofs, screed floors, cellar ceilings, façade and interior insulation as well as fire protection in service shafts, element construction and double-shell masonry.
Wood flooring
Wood floor coverings for indoors and outdoors, such as oak parquet and terrace flooring, including sanding, patching, oiling and sealing of older or rustic floors.
Public buildings
Timber construction work for public buildings with sustainable, functional and architecturally convincing projects in collaboration with clients and planners.
Trust & reputation

ranQ Trust Score of Grütter Block- und Holzbau GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Grütter Block- und Holzbau GmbH scores 58.5 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.60.024%
  • 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.45.610%
  • 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%
Grütter Block- und Holzbau GmbH scores 86.7 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.70.07%
Grütter Block- und Holzbau GmbH scores 83.3 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).83.322%
Grütter Block- und Holzbau GmbH scores 20.0 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 35.20.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Grütter Block- und Holzbau GmbH reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.0 out of 5 stars from 5 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
4
of 5

Aggregated from 5 reviews across all connected sources

Sources
GGoogle45
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Höhenweg 41
3365 Grasswil

At a glance

Legal form
Limited Liability Company
UID
CHE-113.480.880
Founded
2007 · 19 years
Last commercial register change
May 1, 2009
Employees
11 to 20
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.88.06%
  • 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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