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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureInterior ConstructionTennikenBuser Fensterbau AG
Buser Fensterbau AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Buser Fensterbau AG is the manufacture, distribution and installation of windows, front doors, garage doors, sun and insect protection systems, as well as window shutters. The company also offers consulting and design services for its products.

AI-generated
Offering

Products & services

Industry:Interior Construction
✓ Offered8
Windows
Custom windows in plastic, plastic-aluminium and wood-aluminium; various designs and versions, energy-efficient thermal and acoustic insulation, burglary protection, accessories and special solutions such as balcony doors or fixed glazing.
Front doors
Custom front doors in aluminium, wood-aluminium and wood; various models and design styles, side panels and transoms, burglary protection up to RC2, as well as door accessories and a door designer.
Installation
Professional installation of windows and doors, including expert fitting, quality control after installation and clean handover.
Consulting / Sales
Personal consultation in the showroom or on site, measurements and non-binding quotes for windows and doors.
Lift-and-slide doors
Lift-and-slide doors and large-format glazing in plastic, plastic-aluminium and wood-aluminium; energy-efficient, barrier-friendly and, on request, with electric drive.
Sun and insect protection
Sun and insect protection solutions with products, colours and materials from Reflexa; advice on suitable shading and insect protection.
Shutters
Shutters and folding shutters made of aluminium from EHRET; advice on long-lasting, functional and individually designable solutions.
Garage doors
Garage doors from Normstahl with high stability, burglary protection and thermal insulation; advice on suitable doors for the house.
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4.5/5

Buser Fensterbau AG

Trust & reputation

ranQ Trust Score of Buser Fensterbau AG: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 96% · As of October 2026

Buser Fensterbau AG scores 92.8 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.89.724%
  • 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.98.510%
  • 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.95.08%
Buser Fensterbau AG scores 85.5 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.55.07%
Buser Fensterbau 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%
Buser Fensterbau AG scores 17.1 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 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Buser Fensterbau AG reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.9 out of 5 stars from 47 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
4.9
of 5

Aggregated from 47 reviews across all connected sources

Sources
GGoogle4.947
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Comparisons

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Location

Hauptstrasse 26
4456 Tenniken
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 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-110.490.600
Founded
2004 · 22 years
Last commercial register change
September 6, 2023
Employees
1 to 10
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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