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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,544 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringChamWATTELSE AG
WATTELSE AG Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The company WATTELSE AG offers services in the field of heating, ventilation, air conditioning, refrigeration, sanitation (HVAC) and building automation. The core activity of the company is to analyze, optimize and operate building technology to save energy and costs. This also includes the development of concepts for the use of waste heat, the implementation of photovoltaic systems and the monitoring of building management systems using the company's own MONALYSE technology. The company supports property developers and owners in the planning, construction and operation of buildings to ensure efficient and sustainable building technology.

AI-generated
Offering

Products & services

Industry:Technical Consulting & EngineeringSoftware Development
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3.9/5

WATTELSE AG

✓ Offered9
HVAC quality assurance during construction
Independent client representation for HVAC projects, review of preliminary designs and detailed planning, support during implementation, acceptance inspections and defect rectification.
Operational optimisation of building services
Analysis and optimisation of energy consumption, operating costs and user comfort; measures planning, support for implementation, reporting and proof of success.
Second opinion HVAC
Independent assessment of preliminary designs, concepts, feasibility studies and offers; risk analysis, optimisation proposals and decision-making basis.
Feasibility study
Project-based feasibility assessment for new builds, conversions and renovations; variant comparison, legal framework conditions, subsidies and evaluation of implementability.
HVAC condition analysis
Analysis of system condition and the service life of components; renewal plan, investment planning, indications of optimisation potential and renovation support.
Heating replacement
Independent analysis of heating replacement options, including regulations, trends, subsidies and life-cycle costs; support up to commissioning.
Metering concept and guidelines
Development of metering concepts and metering guidelines for energy controlling, benchmarking, ESG reporting and traceable data capture of building performance.
PV system concept
Feasibility study for photovoltaic systems, including review of self-consumption optimisation, permits, subsidies and variants for planning and implementation.
MONALYSE®
Algorithm-based monitoring of building automation with data capture, diagnosis of control problems, notifications, live reports and proof of success.
Trust & reputation

ranQ Trust Score of WATTELSE AG: 3.9 out of 5.0

Trust Score3.9/ 5.0

High

x

Data basis 96% · As of October 2026

WATTELSE AG scores 53.8 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.70.824%
  • 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.27.910%
  • 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%
WATTELSE AG scores 84.6 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.97.712%
  • 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%
WATTELSE AG scores 83.3 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).83.322%
WATTELSE AG scores 25.7 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 35.25.74%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

WATTELSE AG reaches a ranQ Trust Score of 3.9 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 2 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 2 reviews across all connected sources

Sources
GGoogle52
★TrustpilotSoon
PProvenExpertSoon

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

Knowledge

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Location

Alte Steinhauserstrasse 35
6330 Cham
Opening hours
Mon
08:00 - 17:00
Tue
08:00 - 17:00
Wed
08:00 - 17:00
Thu
08:00 - 17:00
Fri
08:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Corporation
UID
CHE-474.722.051
Founded
2012 · 14 years
Last commercial register change
August 27, 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.
100.0
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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