Heat technology Wilkau-Hasslau

What Heat technology Wilkau-Hasslau does

Wärmetechnik Wilkau-Haßlau GmbH & Co. KG is a full-service building technology (HVAC, sanitary, refrigeration) installation and service provider headquartered in Wilkau-Haßlau, Saxony, Germany. Founded in 1931 and operating since 1992 as a subsidiary of the Niersberger Group, the company plans, installs, and maintains heating, cooling, ventilation, sanitary and process systems for commercial, public-sector and residential clients, primarily across the Zwickau, Chemnitz and Plauen region with adjacent Eastern European activities since 2006.

The company's core technology stack is centered on physical building-systems engineering rather than software. Service lines span Heizungstechnik, Sanitärtechnik, Klima- und Kältetechnik, Raumlufttechnik, Prozessanlagen, Strangsanierung and Brandschutz, supplemented by EMSR (measurement, control, regulation) and 3D digital planning. Product offerings include air-source, ground-source and hybrid heat pumps (including the Lambda series via Zewotherm) and photovoltaic systems, supporting the transition to renewable heating. The portfolio also covers smart-home-enabled dynamic hydraulic balancing, drinking water testing, and multi-year preventive maintenance contracts.

The revenue model is predominantly professional-services-based with a hardware overlay. Pricing is quote-based and project-specific for installation work, with multi-year maintenance and service contracts providing a recurring component. The go-to-market is enterprise field-sales driven, with technicians and project managers visiting customer sites for planning, execution and after-sales service. The company maintains a diversified customer base of 1,500+ clients spanning healthcare (Helios Vogtland-Klinikum Plauen, Pathologie Stollberg), public administration (Amtsgericht Zwickau), pharmaceutical manufacturing (Recipharm Aesica), retail/leisure (Zwickau Arcaden, Glück auf Erlebnispark Markersbach) and cultural institutions (Bergbaumuseum Oelsnitz, Deutsche Raumfahrtausstellung), reducing single-customer dependency.

Name

Heat technology Wilkau-Hasslau

Legal name

Wärmetechnik Wilkau-Haßlau GmbH & Co. KG

Website

https://waermetechnik-wh.de

Company type

Private

Founded year

1931

Operating status

Operating

Headcount range

51–100 employees

Short description

Wärmetechnik Wilkau-Haßlau is a Saxony-based HVAC, sanitary, and refrigeration installation and service company serving commercial, public-sector, and residential clients across Zwickau, Chemnitz and Plauen, with heat-pump and PV offerings and recurring maintenance contracts under Niersberger Group ownership.

Ownership category

akta.pro rank

Product category

Building Technology and HVAC Services

NAICS

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

SIC

Refrigeration & Service Industry Machinery (3580)

akta.pro industry

PRIMARYIMAIABAA

HVAC Installation, Service & Repair

Industrials, Manufacturing & Construction/Industrial Services & Facility Operations/Building Maintenance & Repair (MEP/HVAC/Plumbing/Electrical)

SECONDARYIMAFALAB

HVAC & Refrigeration Contracting

Industrials, Manufacturing & Construction/Construction & Civil Engineering/Specialty Trade Contractors (MEP, HVAC, Plumbing, Electrical)

SECONDARYHSAOAGAA

Residential HVAC System Installation (Furnace/AC/Heat Pump)

Home & Personal Services/Plumbing, Electrical & HVAC Services/HVAC Installation & Replacement

SECONDARYHSAOAGAH

Commercial HVAC/R Installation (Rooftop Units, Split Systems)

Home & Personal Services/Plumbing, Electrical & HVAC Services/HVAC Installation & Replacement

SECONDARYIMAHAKAK

Building Thermal Controls & Building Management Systems (HVAC BMS)

Industrials, Manufacturing & Construction/Industrial Machinery & Heavy Equipment/Refrigeration, HVAC & Thermal Equipment

Keywords

• HVAC installation services
• Building technology solutions
• Heat pump systems
• Sanitary engineering services
• Ventilation and air conditioning

Headquarters

HQ city

Wilkau-haßlau

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Installation Services: Installation of complex building technology systems including heating, ventilation, air conditioning and sanitation for commercial, public and residential clients
2. Maintenance and Service: Regular maintenance contracts and service offerings for heating, cooling, ventilation and sanitation systems ensuring long-term operational efficiency and customer retention
3. Heat Pump and PV Solutions: Planning and installation of heat pump systems and photovoltaic installations for energy-efficient and sustainable building solutions

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Wärmetechnik Wilkau-Haßlau plans, installs, and maintains building technology systems including heating, cooling, ventilation, air conditioning and sanitation for commercial, public and residential clients. The company delivers complete projects from 3D digital planning through installation to preventive maintenance, with growing focus on renewable energy solutions such as heat pumps and photovoltaic systems.

Product overview

Wärmetechnik Wilkau-Haßlau GmbH & Co. KG is a full-service HVAC (heating, ventilation, air conditioning) and sanitary installation company offering both commercial and residential building technology solutions. The company operates as a unified service provider with the following core product lines: Heizungstechnik (heating systems including gas, oil, heat pumps, solar thermal), Sanitärtechnik (sanitary installations), Klima- und Kältetechnik (climate and refrigeration), and Raumlufttechnik (ventilation). Specialized offerings include Prozessanlagen (industrial process systems), Strangsanierung (pipe renovation), EMSR-Technik (building automation), and Brandschutz (fire protection). The company also offers renewable energy products including Wärmepumpen (heat pumps such as Lambda, Buderus, and Weishaupt brands) and Photovoltaik-Anlagen (PV systems). Supporting services include Heizlastberechnung (heat load calculations), Digitale Planung (3D digital planning), Smart-Home-Lösungen (dynamic hydraulic balancing), and Wartung & Service (preventive maintenance contracts). The portfolio covers the full project lifecycle from planning through installation to ongoing maintenance.

Differentiator

Problem solved

Functional benefit

Products and services

• Heating Technology (Heizungstechnik) Installation, maintenance and modernization of heating systems including gas, oil, heat pumps, and solar thermal systems for residential, commercial and industrial applications.
• Sanitary Technology (Sanitärtechnik) Installation, modernization and renovation of sanitary facilities including plumbing, fixtures and barrier-free bathroom solutions for residential and commercial buildings.
• Climate and Refrigeration Technology (Klima- und Kältetechnik)

Quantifiable outcome

• Annual energy consumption reduced from approximately 31,000 kWh to 7,400 kWh through heat pump replacement
• +1 more outcomes

Named customers8 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

Feature3 records

Partnerships

Two partnerships are on record, tiered core.

• Niersberger GroupcoreStrategic or Co-development Partner · 1 January 1992Parent company of Wärmetechnik Wilkau-Haßlau. Niersberger Group acquired the company in 1992 and remains the parent organization, providing strategic direction and financial backing.
• DHSN (Duale Hochschule Saxonia)coreStrategic or Co-development PartnerRecognized practice partner for the Supply and Environmental Technology (Versorgungs- und Umwelttechnik) degree program. Provides dual study opportunities combining theoretical education with practical work experience.

Scale indicators5 records

Recent moves19 records

Expansion highlights6 records

Broad incumbents

• Gegenbauer Holding: Gegenbauer is a German building and facility-services group providing technical building services including HVAC and sanitary. Comparable in technical building services offering and customer mix (commercial and institutional clients), with a wider geographic footprint.
• Sodexo Deutschland: Sodexo provides integrated facility management services in Germany, including technical building management and HVAC-related services. Comparable in serving commercial, healthcare and institutional clients with technical building solutions, though primarily a facility-management generalist.
• Dalkia Deutschland: Dalkia is a European energy-services provider operating in Germany with HVAC, heating and cooling solutions for commercial and public clients. Comparable in technical building equipment and energy-efficiency offerings, but with a larger footprint and broader energy-services portfolio.
• ENGIE Deutschland: ENGIE Deutschland provides technical facility management, HVAC and energy services to commercial and public-sector customers. Overlaps with Wärmetechnik in heating/cooling installation and service for institutional clients, but at significantly larger scale and broader energy-services scope.
• WISAG Industrie Service Holding: WISAG is a major German facility and building-services group offering HVAC, refrigeration, sanitary and technical building management across Germany. Comparable to Wärmetechnik in core HVAC/sanitary installation and service capabilities, but at significantly larger national scale and broader service portfolio.
• SPIE GmbH: SPIE is a leading European multi-technical service provider with a strong German presence in building technology, HVAC and energy systems. Directly comparable to Wärmetechnik's heating/cooling/sanitary/ventilation contracting business, but operates nationally and across multiple end-markets.
• Stiebel Eltron: Stiebel Eltron is a German manufacturer of heating, heat-pump and ventilation technology with strong installer partnerships. Comparable product overlap in heat pumps and HVAC, but positioned as an upstream manufacturer/supplier rather than a regional installation contractor.
• Vaillant Group: Vaillant is a leading European heating, heat-pump and ventilation manufacturer with an extensive installer/service network in Germany. Comparable through its heating and heat-pump offerings (Wärmetechnik sells Buderus/Weishaupt heat pumps), but as a manufacturer rather than an installation contractor.

Direct peers

• ROM Technik: ROM Technik is a German HVAC, refrigeration and building-services contractor serving commercial and industrial clients. Closely comparable to Wärmetechnik in core offering (Heizung, Klima, Kälte, Sanitär) and customer types (industrial, healthcare, public), with a similar project-based field-services model.
• Teichmann Gruppe: Teichmann Gruppe is a German building-services and HVAC contractor serving commercial and industrial clients. Closely comparable to Wärmetechnik in scope (heating, cooling, sanitary, ventilation installation and service) and customer profile (industrial, public, commercial) at a similar mid-size scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xxing.com/pages/warmetechnikwilkau-hasslaugmbh-co-kg
• Facebookfacebook.com/waermetechnik.wilkauhasslau
• LinkedInlinkedin.com/company/waermetechnik-wh
• Instagraminstagram.com/waermetechnik_wh

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 Heat technology Wilkau-Hasslau