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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,937 companies indexed · Last updated: today
DirectoryEnergy & EnvironmentSolar & PhotovoltaicsSempachFelder Holz-Solarenergie
Felder Holz-Solarenergie Logo
Verified· 2 sourcesTrust Score
Summary

About the company

Felder Holz-Solarenergie specializes in the installation and service of wood-fired heating systems and solar thermal systems for domestic hot water and heating support. Services include delivery, installation, commissioning and maintenance of wood chip, pellet and log boilers, storage and control systems, system integration and monitoring.

AI-generated
Offering

Products & services

Industry:Solar & Photovoltaics
✓ Offered10
Wood heating systems
Delivery, installation, commissioning and service of log, pellet and wood chip heating systems as well as combination boilers up to 150 kW, including controls, hydraulics and maintenance.
Solar thermal systems for hot water and heating support
Planning, delivery, installation and commissioning of solar systems for domestic hot water heating and heating support, including as solar heating systems in combination with wood, heat pumps, oil, gas or district heating.
Solar heat centers and hybrid heat systems
Pre-assembled hybrid heat centers with buffer tank, fresh water station, heating circuits and intelligent control for wood, heat pump, pellets, PV-Therm and district heating.
Storage systems
Stratified storage tanks, solar stratified tanks, hygienic stratified tanks, domestic hot water tanks and domestic hot water heat pumps for heat storage, domestic hot water production and combination with various heat generators.
Collectors
Solar thermal collectors, large-area collectors and tube collectors for solar thermal systems, also in combination with wood heating and other heating systems.
Heating controls and energy management
Individually programmed heating controls for heating circuits, domestic hot water, solar, return temperature boosting and PV-Heat, as well as remote access and system monitoring.
Pellet storage and conveying systems
Pellet storage, fabric tanks, metal tanks, sack silos, suction systems, screw conveyors, underground tanks and storage containers for automatic fuel storage and conveying.
Maintenance, repairs and emergency service
Commissioning, adjustment and balancing, maintenance work, repairs, spare parts supply, service contracts and emergency service, including on weekends and public holidays.
Advisory, planning and subsidy support
Advice, yield calculations, system selection, support with subsidy applications and building submissions for wood heating systems, solar systems and hybrid solutions.
Room stoves and combination boilers
Water-based room stoves as well as wood-pellet combination boilers for use as additional heating or as a standalone heating system, also in combination with a heat pump or an oil heating system.
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4.1/5

Felder Holz-Solarenergie

Trust & reputation

ranQ Trust Score of Felder Holz-Solarenergie: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of October 2026

Without public customer reviews the score stays capped.

Felder Holz-Solarenergie 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.
x
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%
Felder Holz-Solarenergie scores 78.5 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.100.012%
  • 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%
Felder Holz-Solarenergie scores 85.0 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).85.022%
Felder Holz-Solarenergie scores 3.4 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 35.3.44%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

Felder Holz-Solarenergie 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 October 2026.

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

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Location

Hildisriederstrasse 4
6204 Sempach
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
Sole proprietorship
UID
CHE-113.540.022
Founded
2007 · 19 years
Last commercial register change
November 6, 2009
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.
67.0
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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