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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,887 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringMöhlinH&A Haustechnikplanung GmbH
H&A Haustechnikplanung GmbH Logo
Verified· 3 sourcesTrust Score
Summary

About the company

The core activity of H&A Haustechnikplanung GmbH is the planning and consulting of building technology systems, particularly in the areas of sanitation, heating, ventilation and drainage. The company develops innovative and energy-efficient solutions for construction projects to ensure optimal and sustainable building technology.

AI-generated
Offering

Products & services

Industry:Technical Consulting & Engineering
✓ Offered6
Building services planning
Building services planning for construction projects including sanitary, heating, ventilation, sewerage and electrical planning, as well as preliminary design, execution planning, tender submissions and specialist construction management.
Sanitary planning
Preliminary design, design development and execution planning for sanitary installations; concept comparisons, calculations, cost estimates, tender submissions, specialist construction management, documentation and feasibility studies.
Heating planning
Preliminary design, design development and execution planning for heating systems; variant comparisons, sizing and calculations, economic viability calculations, underfloor heating plans and specialist construction management.
Ventilation planning
Planning of ventilation for living spaces, large facilities and parking garages; ventilation concepts, heat recovery, smoke and heat exhaust systems, calculations, execution planning and specialist construction management.
Drainage and sewer planning
Planning of drainage and sewerage systems; main drainage line planning, schematic planning, sectional planning, sizing, rainfall and drainage calculations, and applications for building permits.
Electrical planning
Design of power and low-voltage systems, lighting and safety lighting, power distribution, UPS, communication networks, building automation, e-mobility, lightning protection, site supervision and condition analyses.
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4.5/5

H&A Haustechnikplanung GmbH

Trust & reputation

ranQ Trust Score of H&A Haustechnikplanung GmbH: 4.5 out of 5.0

Trust Score4.5/ 5.0

Excellent

x

Data basis 96% · As of October 2026

H&A Haustechnikplanung GmbH scores 92.5 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.94.224%
  • 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.100.010%
  • 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.78.08%
H&A Haustechnikplanung GmbH scores 72.3 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.75.012%
  • 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%
H&A Haustechnikplanung 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%
H&A Haustechnikplanung GmbH scores 88.6 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 35.88.64%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

H&A Haustechnikplanung GmbH reaches a ranQ Trust Score of 4.5 out of 5.0 — rated «Excellent». The rating draws, among other things, on 5.0 out of 5 stars from 50 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 50 reviews across all connected sources

Sources
GGoogle550
★TrustpilotSoon
PProvenExpertSoon

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

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Location

Hauptstrasse 58c
4313 Möhlin
Opening hours
Mon
07:00 - 17:00
Tue
07:00 - 17:00
Wed
07:00 - 17:00
Thu
07:00 - 17:00
Fri
07:00 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-399.075.528
Founded
2019 · 7 years
Last commercial register change
July 14, 2020
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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