Our company is closed on public holidays in Baden-Württemberg.
We will be closed for the holidays from December 24, 2025, to January 6, 2026. We will be available again as usual from January 7, 2026.
Please note: The last delivery date is December 19, 2025, and pickups are possible until December 23, 2025.
Whether you have questions about our mobile heat pumps, customized solutions for your construction site, or need service support – at Kroll Energy you don't speak to an anonymous call center, but directly to our experts.
Our sales and service staff are available to assist you personally—by phone or email. This ensures you receive the right answers and a solution that fits your needs quickly.
We stand for accessible service, technical expertise, and reliability — for over 60 years from Backnang for our customers throughout Europe.
Simply select the appropriate contact person from the list below — we look forward to receiving your inquiry.
Key Account Manager, Germany
Mobile: +49 (0) 160 – 919 765 58
Telephone: +49 (0) 7191 – 9070 200
Email: dennis.muehlbach@kroll.de
Key Account Manager, Austria + Switzerland
Mobile: +49 (0) 151 – 1616 4687
Telephone: +49 (0) 7191 – 9070 200
Email: benjamin.czeschlick@kroll.de
Key Account Manager, Export
Mobile: +49 (0) 151 – 269 480 89
Telephone: +49 (0) 7191 – 9070 200
Email: daniel.wright@kroll.de
Inside Sales Manager, Germany West
Telephone: +49 (0) 7191 – 9070 196
Email: jessica.ostwald@kroll.de
Inside Sales Manager, Germany East
Telephone: +49 (0) 7191 – 9070 189
Inside Sales Manager Export
Telephone: +49 (0) 7191 – 9070 129
Email: tatjana.keller@kroll.de
Inside Sales Manager Export
Telephone: +49 (0) 7191 – 904 383 191
Email: lorena.glietti@kroll.de
Technical Service
Telephone: +49 (0) 7191 – 9070 222
Email: gerhard.buck@kroll.de
Technical Service
Telephone: +49 (0) 7191 – 9070 222
Email: service@kroll.de
So that you can reach us reliably: an overview of our opening hours and service times — clear, transparent, and binding.
Monday - Friday: 8:00 am - 12:30 pm & 1:30 pm - 4:00 pm (CET)
Monday - Thursday: 6:30 a.m. - 2:30 p.m.
Friday 6:30 a.m. - 2:00 p.m.
Our company is closed on public holidays in Baden-Württemberg.
For technical questions, maintenance, or repairs:
Telephone: +49 (0)7191 / 9070-222
Telefax: +49 (0)7191 / 9070-201
Email: service@kroll.de
When making inquiries, please have the item number and serial number of your device ready so that we can process your request quickly and accurately.
Delivery address for repair orders:
Kroll Energy GmbH
Wilhelmstraße 44
71522 Backnang
Germany
For product information, offers, and orders:
Telephone: +49 (0)7191 / 9070-200
Telefax: +49 (0)7191 / 9070-201
Email: vertrieb@kroll.de
Email: info@kroll.de