
SHK specialist company in Lübeck for plumbing, heating and air conditioning technology: planning, installation, maintenance and emergency service since 1910.

Freitag & Sohn, Inh. Dirk von Malottki e.K.
LübeckNew on Amplifa
About Freitag + Sohn
Freitag & Sohn is a family-run SHK specialist company based in Lübeck-Marli (St. Lorenz Nord/Marli district). The company was registered on 26.11.1910 as a plumbing business by Ernst Freitag sen. and has been run since 01.01.2001 by qualified gas and water installer master Dirk von Malottki. The services include sanitary installation, heating installation and maintenance, boiler replacement, bathroom planning and bathroom renovation, air conditioning and ventilation construction, structural plumbing, pipe insulation, leak testing/leak detection as well as the installation of renewable energies such as heat pumps and wood pellet heating systems. Additional focal points are the repair of gas and condensing boilers, gas line renovation without chiselling work, customer service and emergency service as well as advice on funding subsidies. The company works for private households and residential buildings in new construction, conversion and renovation in Lübeck, Bad Schwartau and the surrounding area; the team comprises master craftsmen, combustion and control fitters, gas and water installers, central heating and ventilation engineers as well as commercial employees.
- Site
- Lübeck
- Processes
- Sanitary installation (bathroom, sanitary facilities), Heating installation / boiler replacement, Bathroom renovation / bathroom planning, Planning of bathrooms and heating systems, Heating maintenance, Repair of gas boilers / condensing boilers, Gas line renovation (without chiselling work), Renewal of heating systems, wall heating and underfloor heating
- Materials
- Plumbing and heating systems, Renewable energies, Air conditioning and ventilation technology
- Founded
- 1910
- Industries
- SHK skilled trades (plumbing, heating, air conditioning), Private households, Residential buildings (new construction, conversion, renovation), Residential buildings/new construction, conversion, renovation
- 01
Consultation and individual planning (bathroom, heating)
- 02
Quotation and concept development
- 03
Installation and assembly by skilled personnel
- 04
Commissioning and hydraulic balancing
- 05
Maintenance, customer service and emergency service
Fields of work and systems
Plumbing and heating systems
Installation of oil, gas and district heating systems, wall and underfloor heating as well as sanitary installations.
Renewable energies
Installation of heat pumps and pellet heating systems for independence from energy suppliers.
Air conditioning and ventilation technology
Central heating and ventilation construction including maintenance of technical systems.
Locations

Lübeck
DECompany headquarters, workshop and shop
- Materials
- Plumbing, heating, air conditioning and ventilation technology
- Workshop
- Shop
- Vehicle fleet
Service areas



Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Sanitary installation (bathroom, sanitary facilities)Installation | – | – | – | – | – |
| Heating installation / boiler replacementInstallation | – | – | – | – | – |
| Bathroom renovation / bathroom planningEngineering | – | – | – | – | – |
| Planning of bathrooms and heating systemsEngineering | – | – | – | – | – |
| Heating maintenanceTesting | – | – | – | – | – |
| Repair of gas boilers / condensing boilersInstallation | – | – | – | – | – |
| Gas line renovation (without chiselling work)Installation | – | – | – | – | – |
| Renewal of heating systems, wall heating and underfloor heatingInstallation | – | – | – | – | – |
| Oil, gas and district heating systemsInstallation | – | – | – | – | – |
| Installation of renewable energies (heat pumps, wood pellets)Installation | – | – | – | – | – |
| Pipe insulation / pipe insulation workSurface | – | – | – | – | – |
| Leak testing / leak detection on wastewater pipesTesting | – | – | – | – | – |
| Maintenance of technical systems (heating, groundwater systems, air conditioning and ventilationTesting | – | – | – | – | – |
| Air conditioning and ventilation technologyInstallation | – | – | – | – | – |
| Structural plumbing (roof gutters etc.)Installation | – | – | – | – | – |
| Radiator replacement / installation of replacement radiatorsInstallation | – | – | – | – | – |
| Hydraulic balancingTesting | – | – | – | – | – |
Additional services
Company chronicle
- 1910
Ernst Freitag sen. acquired the company premises in Lübeck-Marli (Bülowstr. 3); registration of the independent plumbing business on 26.11.1910.
- 1933
The eldest son Ernst Freitag jun. joined the business.
- 1952
Ernst Freitag jun. took over the business; expansion of the company, at times over 100 employees in the 1960s, introduction of central heating construction.
- 1973
Jürgen Freitag took over the company; shift of work priorities from new construction to repair and conversion.
- 2001
Acquisition of the company Freitag & Sohn by qualified gas and water installer master Dirk von Malottki as of 01.01.2001.