Warth

What Warth does

Warth Ehingen is a traditional German trades business (Handwerksbetrieb) founded in 1908 by Karl Rainer and currently operated as a sole proprietorship by Stefan Wollwinder from Allmendingen in the Ehingen region of Baden-Württemberg. The company installs and services residential heating, plumbing, solar, and water treatment systems, with a product range spanning heat pumps (sole/water, water/water, air/water, split), gas and oil condensing (Brennwert) boilers, hybrid systems integrated via the Viessmann OneBase platform, H2-ready fuel cells, biomass boilers (pellet, log wood, wood chip), solar thermal collectors, photovoltaic with battery storage, water softening, and fireplace/pellet stoves. It also performs complete bathroom renovations. A live showroom in Allmendingen displays working heating systems and stove models, and a 'Heizmobil' mobile heating unit supports a 365-day emergency repair service.

The business operates exclusively as a direct-to-consumer service provider to residential homeowners and property owners, executing on-site installation, modernization, and maintenance with its own team of Anlagenmechaniker. Customer acquisition is driven by local reputation, word-of-mouth referrals, an online presence (website, Facebook, Instagram, X, Google Maps), and no-obligation on-site consultations. All pricing is per-quote and not publicly disclosed. A differentiated offering - the Warth Förderservice - bundles KfW/BAFA subsidy identification and application management, delivered via a partnership with an external energy consulting firm, to lower the customer's purchase friction. The company has 11-50 employees, no disclosed revenue, no external investors or parent, and no operations outside the local Baden-Württemberg catchment area.

Name

Warth

Legal name

Warth

Website

https://warth-ehingen.de

Company type

Private

Founded year

1908

Operating status

Operating

Headcount range

11–50 employees

Short description

Warth Ehingen is a family-owned German trades business founded in 1908 that installs and services residential heating, heat pumps, solar/PV, water treatment, and bathroom systems for homeowners in the Allmendingen/Ehingen region of Baden-Württemberg.

Ownership category

akta.pro rank

Product category

Residential HVAC & Plumbing Services

NAICS

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

SIC

Services-To Dwellings & Other Buildings (7340)

akta.pro primary industry

HVAC Service, Maintenance & Repair (BPABACAA)

akta.pro secondary industry

Hard Services (MEP/HVAC, Electrical, Plumbing) (BPABAAAA)

Keywords

• Heating installation services
• Solar photovoltaic systems
• Bathroom renovation plumbing
• Water treatment softening
• Heating maintenance repair

Headquarters

HQ city

Allmendingen

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, Infrastructure

Revenue model

1. Installation and Construction Services: Revenue generated from the installation, modernization, and renovation of heating systems (heat pumps, condensing boilers, biomass systems), solar/photovoltaic systems, bathroom renovations, water treatment systems, and stove/fireplace installations. Services range from small repairs to complete system replacements. The company also earns fees for ongoing maintenance contracts and emergency repair services.
2. Subsidy Application Services: The company offers a funded subsidy management service (Förderservice) where they identify the best government funding options (KfW, BAFA) and handle the complete application process for customers undergoing heating upgrades, solar installations, or bathroom renovations. Revenue is indirectly earned through increased sales conversion driven by subsidy facilitation.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Warth is a traditional home services trades business that designs, installs, and maintains residential heating systems (heat pumps, gas/oil condensing, biomass, fuel cells, hybrid systems), solar thermal and photovoltaic systems with battery storage, bathroom renovations, water treatment/softening systems, and fireplace/pellet stoves for homeowners in the Allmendingen/Ehingen region of Germany. The company also provides 365-day maintenance, repair, and emergency service including a mobile Heizmobil unit, and assists customers with government subsidy (KfW/BAFA) applications through its Warth Förderservice.

Product overview

Warth is a traditional heating, plumbing, and solar installation company founded in 1908, offering comprehensive services for residential energy systems. The company provides heating solutions (heat pumps, hybrid gas/oil heating, fuel cells, biomass/wood heating, condensing technology), solar and photovoltaic installations with battery storage, bathroom renovations, water treatment systems, and fireplace/pellet stoves. Services include installation, maintenance, repairs, and a subsidy application service (Förderservice) for KfW and BAFA funding. The company operates a showroom in Allmendingen displaying heating systems and stoves, and offers 365-day emergency service.

Differentiator

Problem solved

Functional benefit

Products and services

• Heizung (Heating Systems Installation)

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

One partnership is on record.

• Energy Consultant (Partnerfirma mit Energieberater)coreStrategic or Co-development PartnerThe company partners with an external energy consulting firm to stay up-to-date on current government subsidy programs (KfW and BAFA). This partner enables Warth Ehingen to offer its Förderservice — the company's differentiated subsidy management offering that identifies optimal funding options and handles complete application submissions for customers.

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Viessmann: Major German manufacturer of heating, heat pump, and solar systems. Warth explicitly integrates Viessmann's OneBase platform across its product lines, making Viessmann both a technology partner and the dominant comparable for end-customer heating solutions in the German market.
• Buderus (Bosch Thermotechnik): Bosch-owned German heating brand offering boilers, heat pumps, and hybrid systems. Competes head-to-head with Viessmann for the same residential installation projects that Warth delivers, and is installed by similar regional trades firms.
• Vaillant: German heating manufacturer specializing in condensing boilers, heat pumps, and ventilation. Represents a comparable product stack (heat pumps, gas/oil hybrid, fuel cells) that Warth installs and that local Handwerk firms across Germany resell and install.
• Stiebel Eltron: German manufacturer focused on heat pumps, hot water, and ventilation technology. Comparable to Warth's product mix on the heat pump and hot water side and is a typical partner brand for similar regional installers.
• Daikin Germany: Global HVAC leader with a strong German presence in heat pumps and air conditioning. Competes with Viessmann and Vaillant for the same heat-pump installations that Warth delivers in residential settings.
• Weishaupt: German heating and burner manufacturer with strong position in biomass and condensing technology. Comparable to the biomass/pellet heating segment that Warth actively sells and installs.
• Wolf (Bosch): Heating brand now part of Bosch, offering boilers, heat pumps, and solar systems. Represents another comparable broad-line heating portfolio installed by similar regional trades companies in Germany.
• Junkers (Bosch): Bosch-owned legacy heating brand offering gas condensing boilers and hybrid systems in Germany. Comparable residential heating product line installed by similar regional Handwerk businesses, including older installations that Warth services and replaces.

Others

• Geberit: Leading manufacturer of sanitary and plumbing installation systems. Warth's bathroom renovation and Sanitär services rely on Geberit installation systems, making it a key enabling supplier and an adjacent comparable in the broader plumbing trades market.
• Grohe (LIXIL): Major manufacturer of bathroom and kitchen fixtures. Comparable as an upstream brand that German sanitary installers like Warth incorporate into bathroom renovation projects, and as a representative peer for the bathroom trades segment.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/profile.php
• Instagraminstagram.com/warth-ehingen
• LinkedInlinkedin.com/company/warth

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 Warth