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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryIndustryBuilding materials manufacturerRupperswilHaga AG Baustoffe
Haga AG Baustoffe Logo
Verified· 4 sourcesTrust Score
Summary

About the company

Haga AG Baustoffe sells natural building materials, including insulation, plasters and paints. The company produces natural plasters and paints in Switzerland and provides specialist seminars and advice on how to use its materials.

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Service area

Offering

Products & services

Industry:Building materials manufacturerBuilding materials dealer
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Haga AG Baustoffe

✓ Offered8
Natural building materials
Natural plasters, natural paints, insulation materials and clay building materials for renovations and new builds; including base plasters, top coats, insulating plasters, insulation systems, adhesives, mortars and accessories.
Natural lime and clay plasters
Base plasters, top coats and insulating plasters based on natural lime and clay for wall design, renovation and construction-biologically sound interiors.
Insulation systems and insulation materials
Insulation systems for outdoor and indoor areas as well as insulation materials and loose fill, for example made from cork, flax, wood fibre, Thermofloc or Bio-Korit.
Natural paints and lime paints
Lime paints, natural paints and colour pigments for wall design, coloured plasters and custom surfaces.
Clay building materials and heating/cooling systems
Clay building materials as well as wall and heating systems for natural building climate control and temperature-balancing indoor spaces.
Specialist consultation in the inside and field service
Specialist consultation for construction practitioners throughout Switzerland and for export, with contacts for inside sales and field service as well as colour specialist advice.
HAGA sample workshop
Sample panels, reference samples and individual specifications for assessing materials, colours and surfaces on site.
Courses and events
Seminars and one-day courses on natural lime, clay building materials, building climate control and practical application of the products.
Trust & reputation

ranQ Trust Score of Haga AG Baustoffe: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 100% · As of November 2026

Haga AG Baustoffe scores 87.5 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.78.124%
  • 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.100.010%
  • 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%
Haga AG Baustoffe 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%
Haga AG Baustoffe scores 88.3 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).88.322%
Haga AG Baustoffe scores 55.0 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 35.100.04%
  • 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+0.00

Haga AG Baustoffe reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 4.6 out of 5 stars from 67 customer reviews. As of November 2026.

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

Reviews

Aggregated rating

Aggregated rating
4.6
of 5

Aggregated from 67 reviews across all connected sources

Sources
GGoogle4.667
★TrustpilotSoon
PProvenExpertSoon

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

Press

Media

August 9, 2022Media
Die HAGA AG aus Rupperswil ist auf vegane Baustoffe spezialisiert
aargauerzeitung.ch

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Location

Amselweg 36
5102 Rupperswil
Opening hours
Mon
07:30 - 12:00, 13:00 - 17:00
Tue
07:30 - 12:00, 13:00 - 17:00
Wed
07:30 - 12:00, 13:00 - 17:00
Thu
07:30 - 12:00, 13:00 - 17:00
Fri
07:30 - 12:00, 13:00 - 15:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-107.112.652
Founded
1977 · 49 years
Last commercial register change
July 21, 2021
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

    Active in 4 of 26 cantons · 4 municipalities

    • GRChur
    • VDPompaples
    • AGRupperswil
    • BESpiez

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