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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,765 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringJegenstorfumbauplanen.ch gmbh
umbauplanen.ch gmbh Logo
Verified· 2 sourcesTrust Score
Summary

About the company

umbauplanen.ch gmbh supports refurbishment and renovation projects and provides construction management, cost management, construction controlling and overall project management. The company also prepares cost and schedule planning, independent assessments and GEAK energy analyses for buildings.

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Offering

Products & services

Industry:Technical Consulting & EngineeringConstruction & Project Management
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umbauplanen.ch gmbh

Owner's Representative
✓ Offered7
Construction Management & Cost Management
On-site construction management, contractor coordination, monitoring of build quality and deadlines; ongoing budget planning, cost control and transparent invoicing for refurbishment projects.
Construction Monitoring
Independent monitoring of costs, schedules and quality; checking invoices, construction progress and execution quality, with early notification of deviations.
Cost and Schedule Planning
Realistic cost and schedule planning before refurbishment; detailed budget calculation, construction timetable across all project phases and a clear basis for decisions.
Project Management
Overall project management for refurbishment projects; coordination of architects, specialist planners, authorities and contractors, plus representation of the client’s interests.
Expert Assessments
Independent analysis when budgets are exceeded, schedules slip or execution is in doubt; review of costs, timing and possible planning or construction errors.
GEAK Energy Assessment
Official GEAK assessment for buildings; evaluation of energy efficiency and recommendations for suitable renovation measures to reduce energy consumption.
Refurbishment Project Analysis
Analysis of refurbishment projects for feasibility, building-law requirements, alternatives and rough cost estimates; a clear basis for deciding next steps.
Trust & reputation

ranQ Trust Score of umbauplanen.ch gmbh: 3.6 out of 5.0

Trust Score3.6/ 5.0

Solid

x

Data basis 54% · As of October 2026

umbauplanen.ch gmbh 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%
umbauplanen.ch gmbh scores 50.8 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.25.012%
  • 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%
umbauplanen.ch gmbh scores 83.3 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).83.322%
umbauplanen.ch gmbh scores 10.6 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 35.10.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

umbauplanen.ch gmbh reaches a ranQ Trust Score of 3.6 out of 5.0 — rated «Solid». 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 October 2026.

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

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Location

Bernstrasse 60
3303 Jegenstorf

At a glance

Legal form
Limited Liability Company
UID
CHE-333.141.933
Founded
2025 · 1 year
Last commercial register change
August 21, 2025
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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