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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,629 companies indexed · Last updated: today
DirectoryCrafts & TradesMetal ConstructionSionBTA SA
BTA SA Logo
Verified· 3 sourcesTrust Score
Summary

About the company

BTA SA designs, manufactures and installs customized aluminium exterior solutions. Its product range includes verandas, bioclimatic pergolas, exterior blinds, shutters and mosquito nets, windows, entrance enclosures, balcony glazing, railings and standalone roofs; the company delivers turnkey projects and performs in-house fabrication in its workshop.

AI-generated
Offering

Products & services

Industry:Metal Construction
✓ Offered9
Verandas
Verandas in aluminium and glass, designed and built to measure, with project study, planning, construction, administrative steps and coordination of the trades involved.
Standalone terrace roofs
Roofs for terraces in aluminium and glass, made to measure, with customised plans, administrative steps, delivery and home installation.
Enclosures for balconies and terraces
Custom enclosures for balconies and terraces, creating a living space usable all year round, protected from wind, rain and temperature variations.
Windows
Windows in aluminium and PVC, with measurements, installation, small masonry work if necessary, and an express renovation system in one day.
Bioclimatic pergolas (Biossun)
Biossun bioclimatic pergolas for terraces and gardens, with natural temperature regulation, delivery and installation on site.
Awnings, shutters and insect screens
Indoor and outdoor awnings, aluminium shutters in hinged or sliding versions, and custom insect screens with professional installation.
Balustrades and guardrails
Custom balustrades and guardrails in glass, metal or combined designs for balconies, stairs, mezzanines and walkways, with professional installation.
Entry vestibule
Tailor-made entry vestibule, integrated into the façade like a small veranda, offering a thermal buffer zone and practical storage space.
Cover glazing
Glazing for balconies and terraces with full opening, unobstructed view, thermal insulation, soundproofing and discreet ventilation for year-round use.
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4.5/5

BTA SA

Trust & reputation

ranQ Trust Score of BTA SA: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 96% · As of October 2026

BTA SA scores 86.8 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.80.624%
  • 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.91.110%
  • 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.100.08%
BTA SA 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%
BTA SA 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%
BTA SA scores 48.6 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 35.48.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

BTA SA reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.7 out of 5 stars from 35 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
4.7
of 5

Aggregated from 35 reviews across all connected sources

Sources
GGoogle4.735
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Route d'Aproz 6a
1950 Sion
Opening hours
Mon
07:30 - 11:45, 13:00 - 17:15
Tue
07:30 - 11:45, 13:00 - 17:15
Wed
07:30 - 11:45, 13:00 - 17:15
Thu
07:30 - 11:45, 13:00 - 17:15
Fri
07:30 - 11:45, 13:00 - 17:15
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-101.526.452
Founded
1997 · 29 years
Last commercial register change
September 26, 2024
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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