Rexroth

What Rexroth does

Rexroth is a family-owned heating systems specialist headquartered in Augsburg, Germany, founded in 1948 and now in its fourth generation of family ownership. The firm employs approximately 35 people and serves residential and commercial customers across the Augsburg region and surrounding towns, with a customer base exceeding 5,000 accounts and roughly 100 active construction sites per year. Service lines span heating-system installation, maintenance, repair, and heat-supply contracting, supported by a 365-day emergency service that has been operational since 1970.

The company's core technical offering covers heat pumps, boilers, and conventional HVAC equipment sourced through partnerships with multiple manufacturers including Viessmann, Hargassner, Buderus, Weishaupt, and Vaillant. Technician certifications across these brands allow Rexroth to install and service a broad equipment range rather than acting as a single-vendor dealer. A 1996 partnership with Südwärme AG added heat-supply contracting to the revenue mix, extending the firm from equipment seller into recurring thermal-energy provider. More recently, the company has deployed an online quote calculator to digitize lead capture for installation projects.

Rexroth's business model combines project-based installation revenue with recurring maintenance and repair contracts, plus contracted heat supply via the Südwärme relationship. The firm is privately held, with no disclosed revenue or external funding. The implied unit economics are those of a mid-sized German SHK (Sanitär, Heizung, Klima) trade business: high-touch local service, multi-decade customer relationships, and labor-intensive project execution rather than scalable software or platform margins.

Name

Rexroth

Legal name

Wilhelm Rexroth GmbH Zentralheizungsbau Wärmetechnik

Website

https://rexroth-heizungsbau.de

Company type

Private

Founded year

1948

Operating status

Operating

Headcount range

11–50 employees

Short description

Family-owned heating systems specialist in Augsburg, Germany, serving residential and commercial customers with installation, maintenance, repair, and heat-supply contracting across more than 5,000 accounts and roughly 35 employees.

Ownership category

akta.pro rank

Headquarters

HQ city

Augsburg

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. Heating System Installation: New installation and complete renovation of heating systems for residential and commercial buildings. Revenue is one-time project-based.
2. Maintenance and Repair Services: Ongoing maintenance contracts and repair services for all types of heating installations. Customers can sign annual maintenance contracts. Service is billed by time plus travel fees and flat rates for special equipment.
3. Heat Supply / Contracting: Since 1996, the company is a shareholder and competence center of Südwärme AG, jointly offering heat supply contracting. Südwärme AG finances the heating system and passes costs to residents along with energy costs. Rexroth plans, builds, maintains, and monitors the systems.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels3 records

Core offering

Wilhelm Rexroth GmbH specializes in the planning, installation, renovation, repair, and maintenance of heating systems (heat pumps, pellet boilers, gas/oil condensing boilers, solar thermal, district heating, CHP, and hybrid systems) for residential and commercial buildings. The company also offers 365-day emergency service and heat supply contracting through a partnership with Südwärme AG. Operations are concentrated in the Augsburg region of Bavaria, Germany.

Product overview

Rexroth is a family-owned heating engineering company (Heizungsbau) in its 4th generation, operating as a specialist and complete provider of heating systems of all types and sizes. The company operates as a unified service offering comprising: (1) installation services for private and commercial customers covering heat pumps, wood pellet boilers, gas/oil condensing boilers, solar thermal systems, district heating connections, and CHP systems; (2) long-term maintenance and repair services through a dedicated customer service department available 365 days a year; and (3) heat supply contracting in partnership with Südwärme AG. The company also provides an online quote calculator as a customer-facing digital tool. Rexroth specializes in heating technology exclusively, distinguishing itself from general SHK (plumbing-heating-air conditioning) companies, and serves the greater Augsburg area with approximately 35 employees managing over 100 construction sites annually for more than 5,000 customers.

Differentiator

Problem solved

Functional benefit

Products and services

• Heating Installation for Private Customers (Heizungsbau Privatkunden) Installation, maintenance, and repair of heating systems for owners of single-family and two-family homes, including heat pumps, pellet heating, and oil/gas condensing boilers. Targets private homeowners in the Augsburg region.
• Heating Installation for Business Customers (Heizungsbau Geschäftskunden) Comprehensive heating system services for housing associations (WEG), property managers, commercial and industrial customers, public entities, and building owners, including complex system planning and long-term maintenance.
• Heat Supply / Contracting (Wärmelieferung) Heat supply contracting in partnership with Südwärme AG since 1996, where Rexroth plans, builds, maintains, and monitors new heating systems while Südwärme AG finances the investment and calculates heat prices for residents.
• Customer Service and Maintenance (Kundendienst / Wartung) Customer service and maintenance for heating systems, including maintenance contracts, repairs, and 365-day emergency service (Bereitschaftsdienst) since 1970. Primarily serves systems built by Rexroth using Viessmann or Hargassner components.
• Online Quote Calculator (Online-Angebot / Online-Rechner) Web-based instant quote calculator that generates non-binding offers via email based on customer input, providing rough guidance without on-site assessment.

Quantifiable outcome

• Over 5,000 customers served
• +2 more outcomes

Named customers9 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Three partnerships are on record, tiered core and flagship.

• Südwärme AGcoreStrategic or Co-development Partner · 1 January 1996Since 1996, Rexroth has been a shareholder and competence center of Südwärme AG, jointly offering heat supply contracting. Südwärme AG finances heating system investments and passes costs to residents alongside energy costs. Rexroth plans, builds, maintains, and monitors the systems.
• ViessmannflagshipTechnology or IntegrationA long and deep partnership with manufacturer Viessmann. Viessmann products are primarily used and maintained by Rexroth's customer service team.
• HargassnercoreTechnology or IntegrationLong-standing partnership with manufacturer Hargassner, alongside Viessmann, Buderus, Weishaupt, and Vaillant.

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Viessmann: One of Germany's largest heating-equipment manufacturers and Rexroth's flagship partner; comparable via overlapping heating-system expertise and shared customer base, though Viessmann is a manufacturer while Rexroth is an installer/service provider.
• Weishaupt: German burner and heating-systems manufacturer listed among Rexroth's partners; comparable as a German heating-technology incumbent with overlapping installer relationships.
• ENGIE Deutschland: Large German subsidiary of ENGIE providing facility, energy, and HVAC services; comparable as a much broader incumbent operating heating installation and energy services across Germany, including district heating/contracting.
• Stiebel Eltron: German manufacturer of heat pumps and heating technology; comparable as a domestic heating-technology incumbent competing for the same German heat-pump retrofit demand that Rexroth serves.
• Vaillant: Major German heating manufacturer (heat pumps, boilers); comparable in the German heating ecosystem and serves the same end customers through installer networks similar to Rexroth's.
• Buderus (Bosch Thermotechnik): Bosch-owned German heating-systems manufacturer and Rexroth partner; comparable as a major heating brand reaching end customers via installer networks across Germany.
• WISAG: Large German facility-management and building-services provider with HVAC/heating service capabilities; comparable as a much larger broad incumbent offering technical building services across multiple regions.

Direct peers

• Thermondo: Berlin-based German heat-pump and heating installer; comparable as a specialist residential/commercial heating installation provider in Germany, though larger and more tech-enabled than Rexroth.
• Enerix: German franchise network for solar, heat pumps, and storage installation; comparable as a regional heating/HVAC installation specialist targeting homeowner retrofit demand.

Others

• Südwärme AG: German heat-supply contracting company and Rexroth's strategic partner/shareholder since 1996; comparable as an ecosystem participant that finances and operates heating systems while Rexroth plans, builds, and maintains them.

Market position

Strengths1 record

Weaknesses1 record

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/Rexroth.GmbH
• LinkedInlinkedin.com/company/rexroth-gmbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

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 Rexroth