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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureBuilding MaintenanceGossau SgPST-Bausanierungen KLG
PST-Bausanierungen KLG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of PST Bausanierungen encompasses the execution of building renovation and cleaning work, including: roof covering and cleaning, facade cleaning and renovation, stone cleaning and laying, graffiti removal, insulation of roofs and facades, and drying. The company thus offers a wide range of services in the field of building and property renovation.

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Offering

Products & services

Industry:Building MaintenanceSealing & InsulationRoofing
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4.1/5

PST-Bausanierungen KLG

✓ Offered7
Roof cleaning
Roof cleaning to remove moss, deposits and dirt; optionally with subsequent roof coating to preserve the roof tiles and the building envelope.
Roof refurbishment and roof insulation
Project coordination, trade coordination and quality assurance for tiled pitched roofs and flat roofs, focusing on roof insulation and energy efficiency.
Facade refurbishment and facade coating
Facade refurbishment with dehumidification/drying, insulation, coating projects and painting; including coordination and application of coating materials.
Facade cleaning
Facade cleaning and impregnation to protect against moisture; to increase thermal resistance and improve the durability of the facade.
Stone cleaning
Cleaning of paving stones and natural stone with special compressors; cleaning, rinsing and subsequent sealing, optionally with new jointing.
Stone laying
Laying of stones for outdoor areas and paving installations, complemented by appropriate work in the context of cleaning and joint maintenance.
Graffiti removal
Graffiti removal on house facades, natural stone, traffic signs, toilet facilities and letterboxes, as well as graffiti prophylaxis with protective coatings.
Trust & reputation

ranQ Trust Score of PST-Bausanierungen KLG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 96% · As of October 2026

PST-Bausanierungen KLG scores 68.5 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.72.124%
  • 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.58.610%
  • 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.70.08%
PST-Bausanierungen KLG scores 72.1 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.79.212%
  • 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%
PST-Bausanierungen KLG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
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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%
PST-Bausanierungen KLG scores 85.7 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 35.85.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

PST-Bausanierungen KLG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». The rating draws, among other things, on 4.6 out of 5 stars from 9 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
4.6
of 5

Aggregated from 9 reviews across all connected sources

Sources
GGoogle4.69
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Bahnhofstrasse 6
9200 Gossau Sg
Opening hours
Mon
24h
Tue
24h
Wed
24h
Thu
24h
Fri
24h
Sat
24h
Sun
Closed

At a glance

Legal form
General Partnership
UID
CHE-243.832.151
Founded
2018 · 8 years
Last commercial register change
March 19, 2024
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.
79.0
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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