Herrmann Gebäudesanierung GmbH

What Herrmann Gebäudesanierung GmbH does

Herrmann Gebäudesanierung GmbH is a privately held German building-restoration company domiciled in Dortmund with headquarters, registered at herrmann-j.de, and a regional branch in Sprockhövel. It is part of the Hestia Gruppe conglomerate and a core member of the ARTUS Bautrocknung- und Sanierungsgruppe, a supra-regional network of approximately 2,000 specialists across 15+ partner companies. The company delivers water damage restoration, fire damage restoration, mold remediation, leak detection, technical drying, building diagnostics, and blower door testing services through seven owned branch offices across North Rhine-Westphalia (Dortmund, Sprockhövel, Essen, Duisburg, Unna), Rhineland-Palatinate (Pirmasens), and Saarland (Saarbrücken).

The service offering is built on physical technical equipment — modern leak-detection devices for pipe and flat-roof diagnostics, multi-method technical drying systems, special measurement procedures, and blower door measurement instruments for air-tightness testing. Technology differentiation is in domain specialization and measurement accuracy rather than software, with no AI, automation, or digital platform layer referenced in the available data. Services are delivered by dispatched field crews in response to damage events, with the company emphasizing rapid emergency response (24/7 hotline, online damage reporting form) as a core operational capability.

Revenue is generated through project-based, quote-priced one-time service engagements triggered by damage events. Customers are segmented into three groups: insurance companies (Allianz and Alte Leipziger named as preferred partners), property management firms (Hausverwaltungen), and private customers (Privatkunden). The insurance channel functions as both direct enterprise client and referral source, with carrier partnerships channeling claims work to Herrmann. Pricing is not publicly disclosed, as each project scope depends on damage type, severity, and building characteristics. The company expanded through the June 2025 merger of Aquaplan GmbH into the Herrmann Unternehmensgruppe, continuing a roll-up strategy inside the broader Hestia / ARTUS ecosystem.

Name

Herrmann Gebäudesanierung GmbH

Legal name

Herrmann Gebäudesanierung GmbH

Website

https://herrmann-san.de

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Herrmann Gebäudesanierung GmbH is a German building-restoration firm specializing in water and fire damage remediation, leak detection, technical drying, and mold treatment, serving insurance carriers, property managers, and private customers across North Rhine-Westphalia, Rhineland-Palatinate, and Saarland through seven branch offices.

Ownership category

akta.pro rank

Product category

Building Restoration Services

NAICS

Remediation Services (562910), Remediation Services (56291), Repair and Maintenance (811)

SIC

General Bldg Contractors - Residential Bldgs (1520), Services-Miscellaneous Repair Services (7600)

akta.pro primary industry

Post-Disaster Whole-Home Rebuild (Fire/Water/Storm) (HSAPAEAH)

akta.pro secondary industries

Structural Drying, Dehumidification & Moisture Control (HSAPAOAB), Emergency Mitigation & Site Stabilization (Board-Up, Tarping, Water Extraction) (HSAPAOAA), Smoke, Soot & Odor Remediation (HSAPAOAD), Interior Rebuild & Finishing (Drywall, Flooring, Paint, Trim) (HSAPAOAI), Emergency Response & Disaster Recovery (Water Intrusion/Mold/Contamination) (BPALALAI)

Keywords

• Water damage restoration
• Fire damage restoration
• Leak detection services
• Technical building drying
• Mold remediation services

Headquarters

HQ city

Dortmund

HQ country

Germany

HQ region

Europe

Offices7 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Water Damage Restoration Services: Core revenue from leak detection, technical drying, and restoration of water-damaged buildings. Services are project-based and triggered by damage events.
2. Fire Damage Restoration Services: Professional fire damage restoration services as part of comprehensive building rehabilitation.
3. Mold Remediation Services:
4. Building Diagnostics Services: Diagnostic services including special measurement procedures and blower door testing for quality assurance.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

Herrmann Gebäudesanierung GmbH provides professional water and fire damage restoration services to insurance companies, property management firms, and private customers across North Rhine-Westphalia and surrounding regions. Core services include technical leak detection, structural drying of saturated building components, full-scope restoration, mold remediation, special measurement procedures for flat roofs, blower door air-tightness testing, and building diagnostics, delivered through seven branch offices and supported by emergency response capabilities.

Product overview

Herrmann Gebäudesanierung GmbH is a building restoration company offering a comprehensive suite of damage remediation services. The company operates as part of the ARTUS Bautrocknung- und Sanierungsgruppe (building drying and restoration group) with nearly 2000 specialists. The core service portfolio includes leak detection (Leckortung), technical drying (Technische Trocknung), restoration (Wiederherstellung), and mold remediation (Schimmelsanierung) as primary offerings, complemented by specialized services such as special measurement procedures (Sondermessverfahren), blower door testing (Blowerdoor-Messung), building diagnostics (Bauwerksdiagnostik), and fire damage restoration (Brandschadensanierung). Services are delivered through multiple regional locations across North Rhine-Westphalia, Germany, serving insurance companies, property management firms, and private customers.

Differentiator

Problem solved

Functional benefit

Products and services

• Leckortung (Leak Detection) Technical leak detection using modern detection equipment to locate water leaks in interior and exterior water pipes, moisture penetration through walls, and leaks in flat roofs.
• Technische Trocknung (Technical Drying) Technical drying of water-saturated building structures following water damage, using various drying procedures selected based on building type and damage extent.
• Wiederherstellung (Restoration) Professional single-source restoration services following water or fire damage, positioned as a quality restoration partner for insurance companies.
• Schimmelsanierung (Mold Remediation) Professional mold remediation addressing mold infestations that pose health risks such as allergies and asthma, while also protecting building structures.
• Sondermessverfahren (Special Measurement Procedures) Special measurement procedures enabling targeted damage delineation, particularly applied to flat roof surfaces where conventional methods are insufficient.
• Blowerdoor-Messung (Blower Door Testing) Air-tightness testing of building envelopes, essential for modern energy concepts and quality assurance in building construction.
• Bauwerksdiagnostik (Building Diagnostics) Comprehensive building diagnostics for assessing structural damage and determining restoration requirements.
• Brandschadensanierung (Fire Damage Restoration)

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Aquaplan GmbHcoreStrategic or Co-development Partner · 6 June 2025Aquaplan GmbH has merged with and become part of the Herrmann Unternehmensgruppe as of June 6, 2025, continuing the company's growth trajectory in the building restoration sector.
• ARTUS Gesellschaft für Brand- und WasserschadensanierungcoreStrategic or Co-development PartnerCore member of the ARTUS Bautrocknung- und Sanierungsgruppe, a supra-regional enterprise network specializing in water and fire damage restoration with nearly 2000 specialists.
• ISOTECminorChannel Partner/ Reseller/ DistributorPartner company shown in the partners section of the website.
• AllianzminorChannel Partner/ Reseller/ DistributorInsurance company partner; Herrmann provides professional damage restoration services for Allianz insurance claims.
• Alte LeipzigerminorChannel Partner/ Reseller/ DistributorInsurance company partner; Herrmann provides professional damage restoration services for Alte Leipziger insurance claims.
• SoekefeldminorChannel Partner/ Reseller/ DistributorPartner company shown in the partners section of the website.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Sanierungsservice Küpper: Küpper is an ARTUS network partner providing restoration services, operating a comparable one-stop-shop model for water and fire damage within the same enterprise group as Herrmann.
• SanTec: SanTec is an ARTUS network partner providing water damage restoration and drying services in the Verl area, operating as a peer within the same enterprise network as Herrmann.
• SRT Sanierung: SRT Sanierung is an ARTUS network partner offering restoration services for water and fire damage across Germany, directly comparable in service mix and customer base to Herrmann.
• Bautrocknung Schmittgall: Schmittgall is an ARTUS network partner focused on technical building drying, sharing the same parent group structure, service portfolio, and enterprise insurance clients as Herrmann.
• Vema Bautentrocknung: Vema is a listed ARTUS network partner offering building drying and water damage restoration services in Germany, sharing the same go-to-market model and customer segments as Herrmann.
• ISOTEC: ISOTEC is a direct competitor (and listed partner on Herrmann's website) specializing in waterproofing, moisture control, and mold remediation across Germany, offering a similar service portfolio and franchise-style regional network.
• Detecpro: Detecpro is an ARTUS network partner specializing in detection and diagnostic services (including leak detection and building diagnostics), directly overlapping with Herrmann's technical measurement service lines.

Broad incumbents

• Polygon Group: Polygon is a major European provider of property damage restoration and temporary climate solutions, including water damage drying and leak detection, serving as a large-scale incumbent competitor across multiple countries.
• BELFOR Deutschland: BELFOR is the global market leader in disaster recovery and property restoration, operating a broad portfolio of water, fire, and storm damage services in Germany, overlapping with Herrmann's core offerings but at much larger national and international scale.

Regional players

• Gebäude Schadenservice Bayern: Gebäude Schadenservice Bayern is an ARTUS network partner covering the Bavaria region with water and fire damage restoration services — comparable offering but focused on a different geographic market than Herrmann's NRW base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/ARTUS.BSG
• LinkedInlinkedin.com/company/herrmann-geb%C3%A4udesanierung-gmbh
• Instagraminstagram.com/artus_bsg

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries1 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 Herrmann Gebäudesanierung GmbH