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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint745,194 companies indexed · Last updated: today
DirectoryBusiness & Technical ServicesTechnical Consulting & EngineeringFrümsenEnergietechnik Lehner
Energietechnik Lehner Logo
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Energietechnik Lehner

Summary

About the company

The core activity of Energietechnik Lehner is consulting, planning and implementing energy-efficient solutions for buildings, particularly in the areas of building biology, thermography, air tightness testing, mold and electrosmog testing, cellulose insulation, energy consulting and ventilation. The company also offers services such as creating energy certificates, conducting thermography investigations and advising on the renovation and modernization of buildings.

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Offering

Products & services

Industry:Technical Consulting & Engineering
✓ Offered9
Energy consulting
Measures, certifications and subsidies; building refurbishment with a concept, including initial assessment, GEAK, report on required actions, measures, costs and funding options.
Thermography
Thermographic surveying and assessment of the building envelope to locate thermal bridges, air-leak points and damage, as a basis for refurbishment and quality control.
Air-tightness test
Testing the air tightness of the building envelope for new buildings, Minergie-P houses, existing buildings and before conversions or renovations, including leak detection and certificate.
Building biology
Building-biology consultation, home inspections and selection of environmentally friendly building materials; plus support for new builds and extensions, renovations and electrosmog investigations.
Mould investigation and remediation
Measurement of air and building-material moisture, surface temperature and sample analysis in the laboratory; clarification of causes, building envelope and user behaviour for lasting remediation recommendations.
Electrosmog measurement and advice
Measurement of low-frequency and high-frequency electromagnetic fields as well as static fields; indications for reducing, shielding and optimizing sleeping and living areas.
Cellulose insulation
Blown-in insulation with Isofloc for roofs, walls, ceilings, timber and lightweight constructions as well as for renovations and new builds; seamless insulation with good summer thermal protection.
Ventilation
Controlled residential ventilation with heat recovery, including planning, advice, execution, maintenance, service and controls for new builds and Minergie buildings.
PV systems
Implementation of PV systems for solar power generation; described on the website as a separate service area with reference to project implementation.
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Location

Tina 4
9467 Frümsen

At a glance

Legal form
Sole proprietorship
UID
CHE-116.192.029
Founded
2010 · 16 years
Last commercial register change
November 16, 2010
Employees
1 to 10

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