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  • 40627 Düsseldorf-Unterbach
    Kirche St. Mariä Himmelfahrt

    temperature:
    19,7
    °C
    humidity:
    60,6
    %rF
    measured:
    18:34
    h
  • 31134 Hildesheim
    Michaeliskirche

    temperature:
    20,9
    °C
    humidity:
    51,0
    %rF
    measured:
    18:31
    h
  • 40668 Meerbusch-Lank
    Kirche St. Stephanus

    temperature:
    20,8
    °C
    humidity:
    53,2
    %rF
    measured:
    18:33
    h
  • 50676 Köln
    Krypta Maria im Kapitol

    temperature:
    19,2
    °C
    humidity:
    78,4
    %rF
    measured:
    18:32
    h
  • 66346 Püttlingen-Köllerbach
    ev. Martinskirche

    temperature:
    18,2
    °C
    humidity:
    66,3
    %rF
    measured:
    18:31
    h
  • Our 2000th church heating...
    ...and our team of 1936
  • MAHR company building since 1966
  • MAHR fleet 2014
  • Aachen Cathedral
    ... equipped with a MAHR church heating since 1912

Our specialization

Heating churches

Know-How

Specialized Constructions

Service Small Devices

Always there for you


Welcome to our homepage.
Theod. MAHR Söhne GmbH with its 165 employees is one of the best-performing enterprises in the field of heating, airconditioning and ventilation in North Rhine-Westphalia.

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Our greatest strength lies in the long-term orientation of our family business, which is now led in the sixth consecutive generation. This is living sustainability, to the benefit of employees and customers.

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Doing business doesn´t mean keeping your eyes exclusively on figures like capital ratio or EBIT. Commitment means personal involvement, donating, taking responsibility.


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