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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryCrafts & TradesHeating installerWillisauGut AG
Gut AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Gut AG is a building services company that advises on, plans, installs and maintains heating, ventilation, air-conditioning and plumbing systems. Its services also include bathroom renovations, heating-system replacements and energy consulting.

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Presence

Service area

Offering

Products & services

Industry:Heating installerPlumber
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4.1/5

Gut AG

✓ Offered5
Plumbing installations
Plumbing installations for new builds and conversions, water supply lines, toilet connections, wastewater discharge, sanitary systems for single bathrooms up to large developments.
Plumbing planning
Plumbing planning and feasibility studies, detailed plans for sanitary rooms, support for clients and architects, clarification of options for redesign.
Special installations in the sanitary sector
Water softening systems, rainwater use, dirty-water lifting stations, water supply lines, compressed-air lines, gas lines, steam showers, pool top-ups and garden showers.
Sanitary service and maintenance
Maintenance and servicing of sanitary systems, regular inspections, troubleshooting, and 365-day on-call duty for water damage and defective installations.
Customer service and on-call service
Customer service for 365 days for burst pipes, heating system failures, heating faults, blocked drains, and defective toilet flushing systems.
Trust & reputation

ranQ Trust Score of Gut AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of November 2026

Gut AG has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
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CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
Gut AG scores 62.4 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.58.012%
  • 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%
Gut AG scores 86.7 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).86.722%
Gut AG scores 80.0 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 35.80.04%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Gut AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, so the score is backed by part of the criteria. As of November 2026.

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

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Location

Ettiswilerstrasse 39
6130 Willisau
Opening hours
Mon
07:30 - 11:45, 13:00 - 17:00
Tue
07:30 - 11:45, 13:00 - 17:00
Wed
07:30 - 11:45, 13:00 - 17:00
Thu
07:30 - 11:45, 13:00 - 17:00
Fri
07:30 - 11:45, 13:00 - 16:30
Sat
Closed
Sun
Closed

At a glance

Legal form
Branch
UID
CHE-311.355.638
Founded
2022 · 4 years
Last commercial register change
September 19, 2022
Employees
1 to 10

Active in 6 of 26 cantons

  • Central Switzerland
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.
76.0
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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