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DirectoryCrafts & TradesPlumberFreienbachWHS Gebäudetechnik GmbH
WHS Gebäudetechnik GmbH Logo
Verified· 3 sourcesOwner confirmed
Last updatedOctober 16, 2026

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Summary

About the company

WHS Gebäudetechnik is a specialized company for heating, sanitary, and air conditioning technology. The services include planning, installation, and maintenance of heat pumps and heating systems, sanitary facilities, water and wastewater systems, as well as air conditioning systems. In addition, WHS handles complete bathroom renovations, gas installations, and water treatment. The offer is complemented by heating modernization, underfloor heating, drinking water hygiene, leak testing, repairs, maintenance, as well as a customer service and emergency service. This provides WHS with solutions for new buildings and renovations from a single source.

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Presence

Service area

Offering

Products & services

Industry:Plumber
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Trust Score4.0/5

WHS Gebäudetechnik GmbH

✓ Offered10
Heating Technology
Our innovative systems combine state-of-the-art technology with individually tailored concepts to ensure optimal heat distribution in your home or business.
Bathroom Renovation
We transform your bathroom into a modern, functional and comfortable feel-good space. With careful planning and individually tailored solutions, we implement complete bathroom renovations that perfectly combine design, comfort and efficiency.
Sanitary Technology
Our range of services extends from the initial consultation to precise planning and to professional installation and maintenance of modern sanitary systems.
Maintenance Agreement
A maintenance agreement with WHS Technik provides you with the security of continuous, professional support for your technical systems. Our regular inspections and maintenance work ensure that your systems always operate at optimal performance and that their longevity is guaranteed.
The Heating Check
Our experienced technicians inspect all relevant components of your system—from the burner technology to the control system to the heat exchangers—and identify potential weaknesses early.
Alternative Energies
Our modern systems in the field of solar energy, wind power, and other renewable resources are designed to efficiently meet your energy needs while also making a significant contribution to environmental protection.
Conversions & Renovations
We transform your existing property into a modern, energy-efficient and future-proof space. Through targeted modernization measures, we integrate state-of-the-art technologies and innovative systems that meet the highest standards of comfort, safety and sustainability.
Comfort ventilation
Our systems ensure continuous, controlled supply and exhaust air, which not only provides fresh air but also optimally regulates humidity and effectively removes unwanted odors and pollutants from the room.
Heating maintenance
Our comprehensive maintenance program includes preventive inspections, careful diagnostics and systematic checks to identify potential weaknesses early and fix them.
24/7 Service
WHS Gebäudetechnik is available to you 24/7.
✕ Not offered2
Climate installations
Ventilation installation
Expertise

Expert

NM
Nico Mastromatteo
Owner & Managing Director

35 years of experience in the Sanitary & Building Services industry, extensive service experience for B2C customers.

Qualifications & certifications
Heizungs- & Sanitärverband2024
Heizungs- & Sanitärinstallateur EFZ1986
Weiterbildung Schweisstechnik
Trust & reputation

ranQ Trust Score of WHS Gebäudetechnik GmbH: 4.0 out of 5.0

Trust Score4.0/ 5.0

High

x

Data basis 84% · As of November 2026

WHS Gebäudetechnik GmbH scores 53.3 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: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
WHS Gebäudetechnik GmbH scores 57.1 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.39.612%
  • 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%
WHS Gebäudetechnik GmbH scores 96.7 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).96.722%
WHS Gebäudetechnik GmbH has no value in the Visibility area of the ranQ Trust Score because no data is available. The area carries 8% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Website authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.15

WHS Gebäudetechnik GmbH reaches a ranQ Trust Score of 4.0 out of 5.0 — rated «High». The rating draws, among other things, on 5.0 out of 5 stars from 1 customer reviews. The data basis is 84%, 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.

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.

Common questions

Answers

Does WHS also service heating systems and heat pumps?
Yes, WHS performs maintenance for heating systems, heat pumps and other technical equipment. Regular maintenance helps ensure performance, prevent malfunctions, and extend the life of the systems. A maintenance contract is also available on request.
Does WHS offer an emergency service?
Yes, WHS Gebäudetechnik is reachable 24/7 for emergencies. This provides quick assistance for urgent issues with heating, plumbing, or other systems. The emergency service helps reduce outages and resulting damages.
Does WHS support new construction and renovation?
Yes, WHS supports both new builds and renovations and refurbishments. The team plans and implements suitable technical solutions for heating, sanitation, air conditioning and ventilation. This ensures everything is tailored to your property and your requirements.
Does WHS offer maintenance contracts for technical systems?
Yes, WHS offers maintenance contracts for regular and professional support of your systems. Through recurring inspections and maintenance, systems remain efficient and reliable. At the same time, faults can often be detected early and avoided.
What does WHS's heating check include?
During the heating check, WHS thoroughly inspects all important components of your system. This includes, among other things, burner technology, control system, and heat exchanger. In this way, weaknesses are detected early and the condition of the system is reliably assessed.
Credentials

Certifications & memberships

Gewerbeverband Freienbach
Knowledge

Articles about WHS Gebäudetechnik GmbH

1 article
5 min read

When is a heat pump boiler worth it in the house?

For owners of a single-family home, the question is rarely theoretical. It usually arises when the old boiler fails, heating is modernized, or during a renovation when pipes, technology, or the bathroom are being adjusted. At WHS Building Technology, we often see in such cases that the hot water solution should not be decided in isolation but in connection with the whole house.

October 17, 2026·Read article
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Contact

Location

Schwerzistrasse 34
8807 Freienbach
Opening hours
Mon
07:30 - 17:00
Tue
07:30 - 17:00
Wed
07:30 - 17:00
Thu
07:30 - 17:00
Fri
07:30 - 17:00
Sat
Closed
Sun
Closed

At a glance

Legal form
Limited Liability Company
UID
CHE-278.456.491
Founded
2024 · 2 years
Last commercial register change
May 8, 2026
Employees
1 to 10

Active in 5 of 26 cantons

  • AGAargau
  • LULucerne
  • SZSchwyz
  • ZGZug
  • ZHZurich
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