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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureTimber Construction & CarpentryDörflingenKeller Holzbau + Schreinerei AG
Keller Holzbau + Schreinerei AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Keller Holzbau + Schreinerei AG encompasses the manufacture, processing and maintenance of timber constructions, particularly in the field of prefabricated construction (single-family homes, stables, commercial halls), as well as the production of stairs, kitchens and joinery work. This also includes services such as planning, execution, construction supervision and production.

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Offering

Products & services

Industry:Timber Construction & Carpentry
✓ Offered11
Custom timber element construction
Buildings in timber element construction for single-family homes, multi-family houses and commercial buildings; prefabricated elements, short construction time and completion of the shell.
Renovation and conversion
Renovations and refurbishments with timber, including planning, construction advice and coordination of tradespeople; also reference projects with roof renovation, roof extension and interior fit-out.
Joinery and interior fit-out
Interior fit-out and joinery work with furniture, shelves, cabinets, bathroom furniture, floor coverings, staircases and repairs; also individual made-to-measure production.
CNC machining
CNC-manufactured furniture, doors and other components in large quantities, with complex shapes, high precision and seamless edge processing.
Custom kitchens
Individually planned kitchens with choice of materials and equipment; support in developing solutions according to needs and wishes, also as a reseller of Element Küchen AG.
Custom doors
Made-to-measure exterior doors and interior doors, including fire doors EI30 and EI60; professional fitting and on-site installation.
Roof tiling and roof renovation
Roof coverings and roof renovations with replacement of defective rafters, a new underlay and a new tiled covering.
Facade work
Timber façade work, including implementation of façade projects and related references.
Stair construction
Stairs as joinery and timber construction work, complemented by custom execution as part of renovations and interior fit-out.
Terrace floors
Terrace floors as a timber construction service for outdoor areas.
Planning, execution and site supervision
Planning, execution, site supervision and production for timber construction and joinery projects from planning through to implementation.
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4.0/5

Keller Holzbau + Schreinerei AG

Trust & reputation

ranQ Trust Score of Keller Holzbau + Schreinerei AG: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 96% · As of October 2026

Keller Holzbau + Schreinerei AG scores 55.2 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.67.924%
  • 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.40.910%
  • 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%
Keller Holzbau + Schreinerei 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%
Keller Holzbau + Schreinerei 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%
Keller Holzbau + Schreinerei AG scores 28.6 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 35.28.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Keller Holzbau + Schreinerei AG reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 4.5 out of 5 stars from 4 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
4.5
of 5

Aggregated from 4 reviews across all connected sources

Sources
GGoogle4.54
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Neudörflingerstrasse 53
8239 Dörflingen
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-106.791.760
Founded
1993 · 33 years
Last commercial register change
February 24, 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.100.06%
  • 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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