Herzog GmbH

What Herzog GmbH does

Herzog GmbH is a privately held German Meisterbetrieb (master craftsman business) specializing in sanitary installations, bathroom renovations, heating system construction, sheet metal work, and pipe-cleaning services. Founded in 1883 by Ernst Hugenschmidt in Lörrach and reorganized under the Herzog name in 1994, the company is currently managed by Michael Herzog and employs approximately 11 people across master craftsmen, skilled workers, apprentices, and office staff. The company serves a primarily residential customer base of private homeowners and property managers in the Lörrach region of Baden-Württemberg, alongside commercial and institutional clients including nursing homes, care facilities, clinics, hospitals, schools, and dormitories. Service delivery is direct-to-customer via phone, website inquiry forms, and on-site consultation, with no intermediaries or digital marketplace presence. The core technology stack is traditional building-services engineering (plumbing, heating, gas systems, sheet metal, standing-seam roofing) augmented by modern field equipment such as the Herzog Mobil high-pressure pipe-cleaning vehicle and TV-Kanaluntersuchung camera diagnostics. Revenue is generated through five service streams: Sanitärinstallation and Badsanierung (one-time project work), Heizungsbau (project plus recurring maintenance), Blechnerarbeiten including Stehfalztechnik metal roofing (one-time), Rohrreinigung and Kanalarbeiten (professional services), and Kundendienst (subscription/recurring maintenance contracts). All pricing is quote-based and not publicly disclosed, with billing on a pay-as-you-go cadence. Marketing is limited to the company website, Google Ads, Google Maps local search presence, and a Meinungsmeister reputation widget, with no disclosed use of social media channels.

Name

Herzog GmbH

Legal name

Herzog GmbH

Website

https://herzog-sanitaer.de

Company type

Private

Founded year

1883

Operating status

Operating

Headcount range

1–10 employees

Short description

Herzog GmbH is a family-owned Meisterbetrieb in Lörrach, Germany, providing sanitary, heating, sheet metal, and pipe-cleaning services to residential and local institutional customers across the Baden-Württemberg region.

Ownership category

akta.pro rank

Product category

Plumbing and Heating Services

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (238220), Plumbing, Heating, and Air-Conditioning Contractors (23822)

SIC

Sheet Metal Work (3444), Steam & Air-Conditioning Supply (4961)

akta.pro primary industry

HVAC & Refrigeration Contracting (IMAFALAB)

akta.pro secondary industries

Hard Services (MEP/HVAC, Electrical, Plumbing) (BPABAAAA), Drainage, Waste & Vent (DWV) Systems & Components (IMADALAE)

Keywords

• Plumbing services
• Heating installation
• Bathroom renovation
• Sheet metal roofing
• Pipe cleaning

Headquarters

HQ city

Lörrach

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Marketing or Sales, Others

Revenue model

1. Sanitärinstallation und Badsanierung: Installation and renovation services for bathroom and sanitary systems in residential and commercial properties. One-time project-based revenue.
2. Heizungsbau: Installation, renovation, and maintenance of heating systems including gas heaters, floor heating, radiators, and solar systems. Mix of project-based and recurring maintenance revenue.
3. Blechnerarbeiten: Sheet metal work including metal roofs, facade cladding, gutters, and roof renovations. One-time project revenue.
4. Rohrreinigung und Kanalarbeiten: Pipe cleaning and canal work services. Service-based revenue, potentially recurring for maintenance contracts.
5. Kundendienst: Repair, maintenance, and cleaning services for plumbing and heating systems. Includes warranty work and annual maintenance contracts.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Herzog GmbH is a traditional sanitary, heating, and sheet metal contractor in Lörrach, Germany, planning, installing, and renovating bathroom/sanitary systems, heating systems (gas, underfloor, solar), and metal roofing and façade work. The company also provides mobile drain and pipe cleaning via its specially equipped Herzog Mobil vehicle, TV camera inspections for diagnostics, and ongoing maintenance and repair (Kundendienst) for residential and commercial/institutional customers in the Lörrach region.

Product overview

Herzog GmbH is a traditional sanitary and heating contractor offering a portfolio of integrated building technology services. The core offerings include Bad/Sanitär (bathroom installations and renovations), Heizungsbau (heating systems installation), Blechnerarbeiten (sheet metal/roofing work), Kundendienst (maintenance and repairs), and Rohrreinigung/Herzog Mobil (mobile drain cleaning). Services range from complete bathroom planning with wellness features to heating system installation, pipe cleaning, and ongoing customer service. The company operates as a master craftsman business (Meisterbetrieb) serving residential, commercial, and institutional clients including care homes, clinics, hospitals, schools, and residential complexes.

Differentiator

Problem solved

Functional benefit

Products and services

• Bad / Sanitär (Bathroom and Sanitary)

Named customers4 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators2 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• Wisag Industrie Service Holding GmbH: One of Germany's largest facility-services groups with strong HVAC, technical building services, and energy-management capabilities. Comparable to Herzog on the technical building-services and HVAC installation/maintenance side, but at national IFM scale.
• Gegenbauer Holding GmbH & Co. KG: Major Berlin-based integrated facility-services group with technical building services, including HVAC and plumbing. Comparable to Herzog on building-services scope, but operating nationally as an IFM provider rather than as a regional craft trade.
• ENGIE Deutschland GmbH: Major German facility-services and HVAC provider (formerly Cofely / GDF Suez Energie Services). Overlaps with Herzog's heating installation and building services activities, but operates at a national scale with integrated FM offerings rather than a regional craft trade model.
• STRABAG Property and Facility Services GmbH: German facility-services subsidiary of STRABAG, offering technical and infrastructural facility management including HVAC, plumbing, and building maintenance. Comparable to Herzog on technical building-services activities, with national IFM scale.
• Bilfinger Engineering & Maintenance GmbH: German industrial-services provider with strong HVAC, piping, and building-services engineering capabilities, especially in industrial and institutional customers. Overlaps with Herzog's heating and pipework execution, but at industrial-scale project level.
• Dussmann Group (Dussmann Service Deutschland GmbH): Large German multi-service facility management group providing technical building services, including HVAC and plumbing maintenance, to commercial and institutional clients. Overlaps with Herzog's institutional customer profile (Kliniken, Schulen, Pflegeeinrichtungen) at much larger scale.
• Sodexo Germany (Sodexo Services GmbH): German arm of global facility-services group with technical building services and on-site maintenance offerings. Comparable to Herzog on the institutional maintenance and technical-services overlap, though much broader in scope.

Direct peers

• Heinrich Schmid GmbH & Co. KG: Large German specialty-trade contractor (Maler, Ausbau, and increasingly SHK-related handcraft services) with multi-branch footprint. Comparable to Herzog as a multi-trade German Handwerksbetrieb serving residential and commercial customers, though at substantially greater scale.
• Caverion Deutschland GmbH: Northern-European (with strong German operations) technical building-services and HVAC contractor offering installation, maintenance, and lifecycle services. Directly comparable to Herzog on the Heizungsbau / Sanitär / technische Gebäudeausrüstung value chain, but operating at national and project level rather than residential Mittelstand scale.

Regional players

• Stadtwerke Lörrach (regional utility): Local municipal utility serving the Lörrach catchment with energy, heat, and increasingly building/heat-pump services. Adjacent competitor in the same regional market where Herzog operates, particularly relevant for heating-installation and energy-transition work.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/herzog-gmbh-sanit%C3%A4re-anlagen-blechnerei

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Herzog GmbH