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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryConstruction & ArchitectureSealing & InsulationLandquartGrischa Dämmtechnik GmbH
Grischa Dämmtechnik GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of Grischa Dämmtechnik GmbH includes the planning, consulting and execution of insulation work, particularly in the areas of thermal insulation, fire protection, ventilation insulation and cold insulation, as well as chimney construction. The company also offers services in the areas of heating, plumbing and ventilation.

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Products & services

Industry:Sealing & Insulation
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3.7/5

Grischa Dämmtechnik GmbH

6
Cold and thermal insulation
Thermal insulation and heat protection for a tight building envelope, to reduce heating and cooling costs and improve thermal energy efficiency.
Plumbing work
Insulation for hot- and cold-water pipes, focusing on minimising heat losses in hot-water lines.
Ventilation insulation
Thermal insulation of ventilation ducts, including fire protection and sound insulation, to reduce energy consumption.
Cold insulation
Insulation for cold-carrying pipes to protect against cold loss and condensation formation.
Fire protection
Fire protection solutions with VKF-approved materials and products to prevent fire spread and limit property damage.
Chimney construction
Installation and dismantling of chimney systems, including individual consultation.
Trust & reputation

ranQ Trust Score of Grischa Dämmtechnik GmbH: 3.7 out of 5.0

Trust Score3.7/ 5.0

Solid

x

Data basis 96% · As of October 2026

Grischa Dämmtechnik GmbH scores 49.8 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.68.224%
  • 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.17.610%
  • 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.35.08%
Grischa Dämmtechnik GmbH scores 77.2 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.86.512%
  • 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%
Grischa Dämmtechnik GmbH 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%
Grischa Dämmtechnik GmbH scores 8.0 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 35.8.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Grischa Dämmtechnik GmbH reaches a ranQ Trust Score of 3.7 out of 5.0 — rated «Solid». The rating draws, among other things, on 5.0 out of 5 stars from 1 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
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
GGoogle51
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Papiermühleweg 26
7302 Landquart
Opening hours
Mon
07:00 - 18:00
Tue
07:00 - 18:00
Wed
07:00 - 18:00
Thu
07:00 - 18:00
Fri
07:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-336.847.165
Founded
2016 · 10 years
Last commercial register change
September 19, 2022
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.
88.0
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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