Contact by phone

Do you have a question or would you like more information? Then, please give us a call. We are there for you Monday through Friday from 8 a.m. to 6 p.m. For smoke alarm malfunctions, we are there for you 24 hours a day, 365 days a year.

Contacts

0800 2 50 80 50

Our service

Questions about our range of services, e.g. heating cost billing

For whom

  • Landlords
  • Administrators
  • Owners
  • Tenants

0800 2 00 12 64

Our service

Help in case of malfunctions or failures of your smoke alarm device

For whom

  • Landlords
  • Administrators
  • Owners
  • Tenants

0800 2 11 33 22

Our service

Questions about the use of the customer portal, e.g. billing online

For whom

  • Landlords
  • Administrators
  • Owners

0800 2 77 99 22

Our service

Questions about drinking water, e.g. scheduling legionella testing

For whom

  • Landlords
  • Administrators
  • Owners

0800 8 33 36 66

Our service

Questions about the energy certificate, e.g. explanations of the forms

For whom

  • Landlords
  • Administrators

0800 143 4832

Our service

In case of failures and malfunctions of your heat service equipment

For whom

Only for contractual partners of Techem Solutions GmbH

To order materials

Do you want to order materials? Are you already registered with us as a specialist tradesman? Call us Monday to Friday between 7 am and 4 pm.

Craftsman order hotline

0800 907 09 01

Our service

Material orders for already registered craftsmen

For whom

Specialist craftsmen