Plumbing, heat and air-conditioning installation (

If you select a location, the contact details of the responsible Point of Single Contact and the responsible authority as well as locally valid information will be displayed.

The following formalities are performed by responsible authorities and can also be handled via the Point of Single Contact if necessary. Please specify the location via Change selection. If you choose "To the responsible Point of Single Contact for ..." (if available), the contact details of the responsible Point of Single Contact are displayed. The contact details of the competent authority/-ies are displayed after choosing the formality.

Formalities according to the Services Directive

Formalities according to the Services Directive

For taking-up and pursuit of a service the follwoing specific service-related formalities (authorisations and notifications) must always be obeyed:

  • Skilled crafts and trades; Establishing the requirement for registration of the skilled craft or trade

    Your venture may be liable to a permit under trade law or a notification. To allow the Chamber of Crafts and Skilled Trades to decide whether or not your venture requires an application for registration in the Register of Craftsmen and/or merely a notification, please start by completing the information sheet on the circumstances of your enterprise (see “Forms”). The competent Chamber of Crafts and Skilled Trades will contact you after investigating the information provided.

  • Business registration; business registration by non-EU citizens

    If you want to start a standing trade, you must report this. You must also report the start of operation of a branch office or a dependent branch office, as well as the relocation of the business.

The following authorisations and notifications may be required:

Formalities relating to the place of business

Formalities relating to the place of business

In addition to the requirements related to a specific service there are authorisations and/or notification obligations in other legal areas regarding the place of business which CANNOT be processed through the Point of Single Contact.

Requirements particularly in the areas of construction law, public road legislation, imission control law, water and waste law, listed building regulations and forest law should be taken into account.

Formalities relating to the employment of workers

Formalities relating to the employment of workers

If you would like to hire an employee you need to proceed with the following steps. These formalities CANNOT be processed through the Point of Single Contact.

If the employment is terminated you also have to inform the authorities where the employee has been registered.

  • Company number; application

    When hiring the first employee (450-euro employees, employees subject to social insurance contributions, trainees), you must apply for a company number from the company number service of the Federal Employment Agency. The company number is required, among other things, for the monthly settlements of social contributions.

  • Accident insurance; registration by the employer

    If you are taking on employees for the first time, you must notify the statutory accident insurance institution responsible for your company within one week.

  • Social security; registration of employees

    Employees who are compulsorily insured under the statutory social insurance scheme must be registered with the competent health insurance fund as the collecting agency.

  • Wage tax; registration by the employer

    The employer must withhold and pay the wage tax.

  • Posting of workers to Germany; registration and other obligations

    When posting employees to Germany, the Employee Posting Act must be observed. This law obliges both employers based in Germany and employers based abroad who employ workers in Germany to comply with statutory and, in certain sectors, collectively agreed working conditions. In addition, employers are subject to further obligations.

  • Compensatory levy; payment

    Employers are obliged to fill a certain number of jobs with severely disabled persons or persons of equal status. A compensatory levy must be paid for each unfilled mandatory position.

Tax related formalities

Tax related formalities

For taking-up and pursuit of a service please also consider the following tax related formalities which CANNOT be processed through the Point of Single Contact:

  • Freelance activity; notification of the opening of a business

    The commencement of a freelance activity must be reported directly to the competent tax office without any formalities. The responsible tax office is informed by the respective municipality about the registration of a business. In addition, you must provide the competent tax office with further information on the legal and factual circumstances relevant for taxation.

Personal formalities

Personal formalities

We would also like to inform you about the following personal formalities which CANNOT be processed through the Point of Single Contact:

  • Residence; registration

    When you move into an apartment, you must register with the relevant registration office (municipality or city) within two weeks.

  • National visa; application and extension

    Foreign nationals subject to visa requirements require a national visa for entry for longer stays (over 90 days) or stays leading to the taking up of gainful employment.

Characteristics and key concepts of the service

This service includes the installation of plumbing and heating equipment and supplies and air conditioning, including the extension, modification, maintenance, and repair thereof.

This service includes:

  • Installation of the following in buildings and other structures:
    • Heating systems (operated with electricity, gas, oil, or solid fuels)
    • Furnaces, cooling towers
    • Non-electrical solar thermal collectors
    • Plumbing
    • Ventilation and air-conditioning systems
    • Gas installations
    • Supply lines for a variety of different gases (e.g. oxygen in hospitals)
    • Steam pipelines
    • Sprinkler systems for fire protection purposes
    • Lawn sprinkler systems
  • (Empty) pipe laying
  • Cleaning and removal of blockages from drainpipes in buildings


  • Abwärmeverwertungsanlageninstallation in Bauwerken
  • Bauinstallation (Installation von Heizungs-, Lüftungs-, Klima- und gesundheitstechnischen Anlagen)
  • Bauinstallation (Klempnerei, Gas-, Wasserinstallation)
  • Bauklempnerei
  • Bauspenglerei
  • Bauunternehmen
  • Belüftungsanlageninstallation
  • Belüftungsanlageninstallation in Bauwerken
  • Elektroheizungen, Installation
  • Elektroheizungsinstallation (Elektroinstallation in Bauwerken)
  • Entlüftungsanlageninstallation in Bauwerken
  • Faulbehältereinbau
  • Flaschnerei
  • Gas- und Wasserinstallation
  • Gas- und Wasserinstallation
  • Gebäudetechnik
  • Gesundheitstechnische Anlagen, Installation in Bauwerken
  • Heizungsbau
  • Heizungsbauerin
  • Heizungsinstallation in Bauwerken
  • Heizungsinstallation (Installation von Elektroheizungen in Bauwerken)
  • Installateur (Gas- und Wasser-)
  • Installateurin und Heizungsbauerin
  • Installation von Elektroheizungen
  • Installation von Steuerungssystemen für Heizungsanlagen
  • Instandhaltung und Reparatur von Heizungsanlagen
  • Kälteanlagenbau
  • Kälteanlagenbauer
  • Klempnerei
  • Klempnerei
  • Klimaanlageninstallation in Bauwerken
  • Korrosionsschutz für sonstige Zentralheizungsanlagen (Tankinnenbeschichtungen)
  • Luftbefeuchtungsanlageninstallation in Bauwerken
  • Luftheizungsanlageninstallation in Bauwerken
  • Luftheizungsbau, Luftheizungsbauer
  • Luftreinigungsanlageninstallation in Bauwerken
  • Lüftungsanlageninstallation in Bauwerken
  • Lüftungsbau
  • Lüftungskanaleinbau in Bauwerken
  • Ofenbauer, Heizungsbauer, Ofen- und Luftheizungsbau, Ofenheizungsbauer
  • Reinigung von Klimaanlagen
  • Reparatur von Heizungsanlagen
  • Sanitärinstallation
  • Solarwärmekollektoren (zur direkten Wärmeerzeugung), Installation
  • Spenglerei
  • Sprinkleranlageninstallation
  • Tank- und Sammelbehältermontage für sonstige Zentralheizungsanlagen
  • Verlegen von Fußbodenheizung
  • Warmwasserbereitungsanlageninstallation in Bauwerken
  • Wartung von Haushaltsheizkesseln und -brennern
  • Wartung von Ölheizungen
  • Wartung von Sanitäranlagen
  • Wartung von Tankanlagen, nicht mit industrieller Kapazität
  • Wasserinstallateurin; Zentralheizungsbauerin
  • Wasserinstallation
  • Wasserpumpeninstallation in Bauwerken
  • Zentralheizungs- und Lüftungsbauerin; Gasinstallation; Gasinstallateurin
  • Zentralheizungsanlageninstallation in Bauwerken
  • Zentralheizungsbau