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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint742,806 companies indexed · Last updated: today
DirectoryCrafts & TradesPlumbing & Building ServicesRheinfeldenJ. Willers Engineering AG
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J. Willers Engineering AG

Summary

About the company

J. Willers Engineering AG is an engineering firm for high‑tech buildings and infrastructure. It provides planning and engineering services including building services engineering, cleanroom and laboratory systems for life‑sciences, data center and energy solutions, BIM/BIM2FM and cyber security.

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Offering

Products & services

Industry:Plumbing & Building Services
✓ Offered7
Building Services
Planning and control of building services with all trades handled in-house, including heating, ventilation, air conditioning, sanitary, electrical, building automation and consulting.
General Planning
General planning for technologically demanding buildings, with overall responsibility, integrated coordination of all design disciplines as well as feasibility studies, overall technical management and technical architecture.
Digital Building
Digital building solutions for networked building systems, with IoT and cloud integration, digital twin, BIM management, OT concepts and cyber security for planning, construction and operation.
Consulting
Advisory services for clients and operators on energy and building technology, including project steering, quality assurance, client representation, energy concepts and operational optimization.
Laboratory Planning
Laboratory planning for research and analytical environments, with laboratory concepts, supply of media, safety concepts, building services planning, laboratory equipment and BIM models.
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Press

Media

June 30, 2026Media
Grünes Licht für Dienstleistungszentrum
nfz.ch
April 30, 2026Media
Neues Dienstleistungsgebäude geplant
nfz.ch

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Location

Quellenstrasse 1
4310 Rheinfelden

At a glance

Legal form
Corporation
UID
CHE-106.443.193
Founded
1989 · 37 years
Last commercial register change
August 29, 2025
Employees
11 to 20

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