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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint746,952 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureArchitectWaldstattBlumer AG Architektur + Schreinerei
Blumer AG Architektur + Schreinerei Logo
Verified· 5 sourcesOwner confirmed
Last updatedOctober 22, 2026

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Summary

About the company

Home is more than four walls: BLUMER AG in Waldstatt creates spaces with architecture and carpentry that fit the people who live in them. Whether new build, renovation or refurbishment, BLUMER accompanies construction projects from the initial idea through architectural planning and construction management to the finished implementation. Also in the carpentry shop, individual solutions emerge: kitchens, furniture and interior installations are crafted in the own workshop in Waldstatt with a lot of love for the craft. Function and design go hand in hand. Rooted in the Appenzell region, BLUMER advocates in the entire eastern Switzerland that four walls do not simply become a house, but a home.

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Trust Score4.5/5

Blumer AG Architektur + Schreinerei

Industry:ArchitectInterior fit-outCarpenter
✓ Offered12
Architecture & Building Planning
Custom planning of new buildings, conversions and renovations, from the initial draft to the execution planning.
Carpentry & Joinery
Custom carpentry work from the in-house workshop in Waldstatt.
Kitchen construction
Custom kitchens from planning through manufacturing to installation.
Conversions & Renovations
Planning and execution of alterations, renovations, and demanding old-building renovations.
Interior Construction & Interior Design
Designing and implementing bespoke room concepts with a focus on functionality and design.
Construction Management & Realisation
Coordination of craftsmen, cost control, and quality assurance during the construction phase.
Custom-made furniture
Bespoke furniture, built-in wardrobes and solid wood furniture, tailored to the room and needs.
Custom Carpentry Services
Carpentry service for repairs, adjustments and maintenance work.
Timber façades
Planning and execution of timber façades and facade cladding.
Sustainable Construction
Ecological building with wood, healthy indoor materials and sustainable building concepts.
Heritage Conservation & Historic Building Renovation
Careful restoration and sustainable development of existing and historic building stock.
Construction in the Agricultural Zone
Architecture and planning of construction projects in the agricultural zone.
Trust & reputation

ranQ Trust Score of Blumer AG Architektur + Schreinerei: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 92% · As of November 2026

Blumer AG Architektur + Schreinerei scores 79.9 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.81.424%
  • 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.76.210%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Blumer AG Architektur + Schreinerei scores 94.3 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.90.07%
Blumer AG Architektur + Schreinerei scores 96.7 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).96.722%
Blumer AG Architektur + Schreinerei scores 13.6 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 35.17.14%
  • 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+0.15

Blumer AG Architektur + Schreinerei reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.8 out of 5 stars from 19 customer reviews. The data basis is 92%, so the score is backed by part of the criteria. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.8
of 5

Aggregated from 19 reviews across all connected sources

Sources
GGoogle4.819
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

Media
Startschuss für das neue Betriebsgebäude der BLUMER AG
neubau.blumer-ar.ch
Media
Frischer Wind bei Blumer
leaderdigital.ch
Credentials

Certifications & memberships

Wir machen Profis – Lehrbetrieb
Engagement für die Ausbildung junger Fachkräfte.
altbauweise
Fachnetzwerk für den Erhalt und die Sanierung bestehender Bausubstanz.
VSSM
Mitgliedschaft im Schweizer Branchenverband des Schreinergewerbes.
Knowledge

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Contact

Location

Mooshaldenstrasse 5
9104 Waldstatt
Opening hours
Mon
07:00 - 17:30
Tue
07:00 - 17:30
Wed
07:00 - 17:30
Thu
07:00 - 17:30
Fri
07:00 - 17:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-108.600.262
Founded
1997 · 29 years
Last commercial register change
May 16, 2024
Employees
51 to 100

Active in 4 of 26 cantons

  • AIAppenzell Inner Rhodes
  • ARAppenzell Outer Rhodes
  • SGSt. Gallen
  • TGThurgau
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