Küpper

What Küpper does

Josef Küpper Söhne GmbH is a family-owned heating, bathroom, and sanitation contractor headquartered in Bonn-Bad Godesberg, Germany, founded in 1919 and operating continuously for over 100 years. The firm is led by managing directors Vera Küpper-Racke, Andreas Racke, and Michael Brodziak, and serves predominantly private homeowners across the Bonn/Rhein-Sieg region through three locations (Bad Godesberg, Beuel, Meckenheim) that together host approximately 1,400 sqm of bathroom studio space.

The company's service portfolio spans heating system installation (heat pumps, pellet heating, solar thermal, hybrid, CHP, gas condensing, and oil heating), full-service bathroom renovation including planning, design, 3D visualization, fixed-price contracting, and an in-house tile laying department, BAFA-certified building energy consulting (~200 consultations per year) with personalized renovation roadmaps, and ongoing maintenance and repair supported by a 24/7 emergency hotline, a 5-year full warranty on new heating installations, and a spare parts inventory. Underlying technology includes ViCare smart heating control, Hottgenroth building energy planning software, hydraulic balancing services, and HPS hydrogen-capable heating system planning, complemented by digital self-service tools (Badrechner bathroom configurator, heating project request form, online spare parts portal).

The business model is project-based professional services plus hardware pass-through, priced on hourly technician rates (€22 excl. VAT per ¼-hour, €13 for apprentices), a per-call service flat fee (€17.90 excl. VAT), zone-based travel costs, overtime and weekend surcharges, and a €150 new-customer emergency surcharge. Go-to-market is regional field sales plus showroom consultation, with public-procurement prequalification (§ 6a VOB/A, registration 010.134790) enabling institutional bidding. The firm is a member of CELSEO, Germany's leading building technology cooperation, and has been recognized among Germany's Top 100 Bathroom Studios by A&W Architektur & Wohnen in 2024 and 2026.

Name

Küpper

Legal name

Josef Küpper Söhne GmbH

Website

https://kuepper-bonn.de

Company type

Private

Founded year

1919

Operating status

Operating

Headcount range

11–50 employees

Short description

Küpper is a family-owned HVAC, bathroom renovation, and energy consulting contractor in Bonn/Rhein-Sieg, Germany, serving predominantly private homeowners across three showrooms since 1919.

Ownership category

akta.pro rank

Product category

Residential HVAC and Plumbing Services

NAICS

Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Heating Equip, Except Elec & Warm Air; & Plumbing Fixtures (3430)

akta.pro primary industry

Chillers & Cooling Plant Equipment (IMAHAKAE)

akta.pro secondary industry

Commercial/Institutional CHP (Hospitals, Universities, Data Centers, Campuses) (EUACAKAJ)

Keywords

• Residential heating services
• Bathroom renovation services
• Building energy consulting
• Heat pump installation
• HVAC maintenance services

Headquarters

HQ city

Bonn

HQ country

Germany

HQ region

Europe

Offices3 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Bathroom Renovation Services: Complete bathroom remodeling services including planning, installation, and finishing work. Revenue generated through project-based contracts for new bathrooms, renovations, and barrier-free conversions. Fixed-price offerings available. Includes tile work through own tile laying department.
2. Heating System Installation: Installation of heating systems including heat pumps, pellet heating, solar thermal, hybrid systems, gas condensing, and oil heating. Product sales combined with installation services. Focus on renewable energy systems aligned with government subsidies.
3. Service and Maintenance: Ongoing service contracts for heating and sanitary systems including maintenance, repairs, and emergency services. Revenue from hourly billing plus service flat fees and material costs. Includes 24/7 emergency hotline.
4. Energy Consulting: BAFA-certified building energy assessments and renovation roadmaps. Customers receive subsidized energy audits (80% BAFA funding) and personalized renovation plans. Approximately 200 energy consultations per year.
5. Spare Parts Sales: Replacement parts for heating and sanitary systems sold to customers, either through the online spare parts portal or during service visits.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

Küpper is a family-owned heating, bathroom, and sanitation contractor based in Bonn/Rhein-Sieg, Germany, operating since 1919. The company sells and installs heating systems (heat pumps, pellet, solar thermal, hybrid, gas, oil), provides full-service bathroom renovation including design, tile work, and barrier-free conversions, and delivers BAFA-certified energy consulting plus maintenance, repair, and 24/7 emergency services for residential customers in the Bonn region.

Product overview

Küpper (Josef Küpper Söhne GmbH) is a family-owned heating, bathroom, and sanitation contractor based in Bonn/Rhein-Sieg, Germany, operating since 1919. The company offers a unified service portfolio centered on heating systems (including heat pumps, pellet heating, solar thermal, hybrid heating, CHP, gas and oil heating), bathroom renovation and design services, qualified energy consulting with BAFA-certified building energy checks, and comprehensive maintenance and repair services. The core offering is delivered through three bathroom showrooms and supported by digital tools including an online bathroom configurator, spare parts ordering portal, and heating project request system. The company also provides subsidy advisory services and emergency repair services across multiple locations in the Bonn/Rhein-Sieg region.

Differentiator

Problem solved

Functional benefit

Products and services

• Heating Systems (Heizung)

Quantifiable outcome

• 5% higher government subsidies for energy renovation measures when following BAFA renovation roadmap
• +2 more outcomes

Named customers5 records

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• CELSEOcoreStrategic or Co-development PartnerCELSEO is described as 'der führenden Kooperation in der Gebäudetechnik' (the leading cooperation in building technology). As a member, Küpper benefits from access to premium products from leading manufacturers, innovative solutions through experience exchange with experts across Germany, and continuous professional development opportunities for employees.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Duravit: German bathroom ceramics, furniture, and wellness brand sold through specialist showrooms and installers. Duravit's product positioning and showroom-led distribution model closely mirrors the customer experience Küpper provides across its three bathroom studios.
• Grohe (LIXIL): Major German bathroom and kitchen fittings brand serving the same residential bathroom renovation end-customer as Küpper. Both operate in the premium bathroom fixtures category, though Grohe is a global manufacturer with broad retail and project distribution rather than a regional installer.
• Villeroy & Boch: Premium German bathroom ceramics and fixtures brand whose products Küpper displays and sells across its three bathroom studios. Comparable because both target the same German premium bathroom renovation customer, though Villeroy & Boch operates as a manufacturer rather than an installer.
• Bosch Thermotechnik: Parent division of Buderus and a global heating/HVAC manufacturer. Bosch Thermotechnik's broader portfolio (heat pumps, boilers, commercial HVAC, service) overlaps with Küpper at the residential heating system level, but operates at industrial scale across multiple brands.
• Wisag: Large German facility services company with a substantial HVAC installation, service, and maintenance division. Comparable because Wisag competes for the same commercial/institutional heating service and retrofit contracts that Küpper targets alongside its residential core.

Emerging players

• Daikin: Japanese-origin heat pump and HVAC manufacturer rapidly scaling in the German heating transition. Daikin's Altherma and direct-to-installer programs overlap with Küpper's core heat pump installation business and represent both a competing supplier brand and an emerging channel partner.

Direct peers

• Vaillant: Leading German heating manufacturer (heat pumps, gas condensing, hybrid systems) whose products Küpper installs and services. Vaillant's 'aria' and 'aroTHERM' lines compete head-to-head in residential heat pump retrofits, the same projects Küpper subsidizes through KfW/BAFA programs.
• Viessmann: Major German heating and heat pump manufacturer whose products (heat pumps, condensing boilers, solar thermal, ViCare controls) form the core of Küpper's heating portfolio. Viessmann operates a certified-partner installer network that competes with independent contractors like Küpper for the same residential heating customers in the Energiewende.
• Stiebel Eltron: German heat pump and DHW specialist central to Küpper's renewable heating offering. As one of the most-installed heat pump brands in Germany's residential heating transition, Stiebel Eltron sits in the same installer-and-end-customer value chain as Küpper.
• Buderus: German heating manufacturer (Bosch Thermotechnik subsidiary) whose gas, oil, and heat pump systems Küpper installs. Buderus runs a 'Buderus Fachpartner' installer program that competes directly with independent regional contractors like Küpper for residential heating modernization.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/kueppersoehne

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Küpper