PreFab TGA GmbH

What PreFab TGA GmbH does

PreFab TGA GmbH (legal name: PreFab TGA Systembau GmbH) is a Kleve, North Rhine-Westphalia-based industrial prefabrication company founded in 2021 by the Berns Gruppe and majority-acquired by the Wilo Group in June 2026. The company manufactures customized prefabricated modules, components, and complete container-based energy centers for the Technical Building Equipment (TGA) and Sanitary-Heating-Air Conditioning (SHK) industries. Its product portfolio spans individual components (hydraulic distributors for heating and cooling, pipe prefabrication in steel/stainless steel/aluminum, prefabricated shafts and ducts, pre-wall installations, certified steel structures) through to fully integrated modular systems, most notably an external heat pump heating center developed in partnership with Mitsubishi Electric for GEG-compliant renovation of multi-family and commercial buildings.

The underlying technical model is factory-based Vorfertigung: modules are digitally planned, manufactured under controlled workshop conditions at the Boschstraße 23 facility, and delivered as plug-and-play units requiring only on-site assembly and connection. The company holds DIN EN 1090 certification (October 2025) for load-bearing steel and aluminum components, with CE marking rights across the European market. Production scale is significant per project — flagship projects have delivered 180 sqm energy centers comprising six modules of up to 13 tonnes each, with individual heat pump configurations reaching 56 kW or 84 kW of total capacity.

Commercially, PreFab operates a project-based, quote-driven sales-led motion targeting TGA contractors, SHK manufacturers, architects and specialized planners, and the housing/residential property owner segment. GTM channels include direct consultation, ISH 2025 trade-show presentation, earned coverage in trade publications (Haustec, Heizungsjournal, KKA), an email newsletter with over 1,000 subscribers, and a strong referral network through Fachplaner and the founding Berns Gruppe. Revenue derives from one-time project sales of customized modules, usage-based rental of Victaulic roll grooving tools, and ancillary on-site assembly services. The business currently runs on a small 8-person headcount with a first apprenticeship cohort having completed training in June 2026.

Name

PreFab TGA GmbH

Legal name

PreFab TGA Systembau GmbH

Website

https://prefab.nrw

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

1–10 employees

Short description

PreFab TGA GmbH, founded in 2021 in Kleve, Germany and majority-owned by Wilo Group since June 2026, industrially prefabricates plug-and-play TGA modules, hydraulic distributors, and container-based heat pump heating centers for building-services contractors, manufacturers, architects, and residential property owners across Germany.

Ownership category

akta.pro rank

Product category

Building Services Prefabrication

NAICS

Prefabricated Metal Building and Component Manufacturing (332311)

SIC

Prefabricated Metal Buildings & Components (3448)

akta.pro primary industry

Residential Modular & Prefabricated Home Construction (IMAFABAF)

Keywords

• Building services prefabrication
• Modular HVAC fabrication
• Heat pump heating centers
• Pipe prefabrication services
• Steel construction fabrication

Headquarters

HQ city

Kleve

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Prefabricated TGA Modules and Components: The company generates revenue by manufacturing and selling customized prefabricated modules, energy centers, distributors, hydraulic units, pipe assemblies, shafts, pre-wall systems, and steel structures for TGA and SHK contractors. Revenue is project-based, one-time per order with varying project sizes. Individual components, small series, and complete modular systems are offered.
2. Complete Modular Energy Centers: Turnkey prefabricated container-based heating and cooling centers sold as plug-and-play units. Customers receive fully assembled, tested, and ready-to-connect modules including integration of third-party equipment (e.g., Mitsubishi Electric heat pumps, Viessmann boilers).
3. Roll Nut Werkzeug Vermietung (Roll Grooving Tool Rental): Rental of Victaulic roll grooving tools for steel and stainless steel (OGS & ST100 systems), providing a recurring usage-based revenue stream for pipe connection equipment.
4. Construction and Assembly Services: On-site delivery and assembly services for prefabricated components, including site logistics and installation support, offered as an add-on service to the core prefabrication offering.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

PreFab TGA GmbH manufactures prefabricated modules, components, and systems for the technical building equipment (TGA) and sanitary-heating-air-conditioning (SHK) industries at its Kleve facility. Its core offering spans complete container-like energy centrals, plug-and-play modular systems, prefabricated distributors, pipe assemblies, steel substructures, shafts, ducts, and pre-wall installations that are delivered to construction sites ready for assembly. The flagship offering is a GEG-compliant external heat pump heating central co-developed with Mitsubishi Electric for multi-family building renovation.

Product overview

PreFab TGA GmbH offers a unified portfolio of prefabrication solutions for Technical Building Equipment (TGA) and Sanitary-Heating-Air Conditioning (SHK) industries. The core offering spans individual components (hydraulics for heat and cold, pipe prefabrication, prefabricated shafts and ducts, pre-wall installations, steel construction, distributors) alongside integrated modular systems (heat pump heating centrals, energy centrals). Products are manufactured at the Kleve facility under controlled workshop conditions. The integrated heat pump heating central represents the flagship modular solution developed in cooperation with Mitsubishi Electric, combining prefabricated container modules with heat pump technology for GEG-compliant building renovation. All solutions are designed for plug-and-play installation, reducing on-site construction time and improving quality control.

Differentiator

Problem solved

Functional benefit

Products and services

• Wärmepumpenheizzentralen (Heat Pump Heating Centrals) External heat pump heating central in container format for serial renovation of multi-family buildings, housing complexes, and commercial/industrial buildings. GEG-compliant solution for buildings lacking space for central heating systems, delivered as a fully assembled plug-and-play unit with integrated Mitsubishi Electric Ecodan heat pumps, hot water preparation, and hydraulic integration.
• Modulbau (Module Construction) Prefabrication of complete container-like modules, building elements, assemblies, and complete room modules integrating multiple trades of technical building equipment. Modules are delivered as plug-and-play units to construction sites, including large-scale projects such as 180 sqm energy centrals built from six container modules each weighing up to 13 tonnes.
• Verteilerbau / Hydraulik für Wärme und Kälte (Distribution Construction) Prefabrication of distributors for heating, cooling, and sanitary applications in the TGA and SHK industries. Complete systems are delivered as plug-and-play room solutions including buffer storage, hydraulic separators, safety devices, wiring, and measurement/control technology.
• Fertigung & Montage von Baugruppen (Manufacturing & Assembly of Assemblies) Construction and manufacturing of individual assemblies flexibly in small series or single-piece production, including hydraulic connections, pump groups, and transfer stations for TGA and SHK customers.
• Vorgefertigte Schächte und Trassen (Prefabricated Shafts and Ducts) Custom-fit prefabrication of shafts and ducts for rapid laying and assembly on the construction site, including complete pipe packages in predefined lengths and full shaft packages.
• Vorwandinstallation (Pre-wall Installation) Industrially prefabricated pre-wall systems oriented to construction site conditions, delivered as quick, simple, and economical solutions requiring only assembly and connection on-site.
• Rohrvorfertigung (Pipe Prefabrication) Processing of steel, stainless steel, and aluminum piping including cutting, welding flanges, roll grooving, thread cutting, and branching. Services range from individual pipe pieces to complete media ducts and vertical shaft constructions.
• Stahlbau (Steel Construction)

Quantifiable outcome

• Energy centers constructed on 180 sqm footprint, comprising six modules with a heaviest module of 13 tonnes, delivered as a complete plug-and-play solution
• +3 more outcomes

Named customers2 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Two partnerships are on record, tiered core.

• Mitsubishi Electric Europe B.V.coreStrategic or Co-development Partner · 14 March 2025PreFab TGA GmbH and Mitsubishi Electric Europe B.V. entered a strategic co-development partnership to create a GEG-compliant external heat pump heating center in container format for multi-family buildings and housing complexes. Mitsubishi Electric supplies its high-efficiency Ecodan air/water heat pumps with inverter technology, while PreFab handles planning, module construction, assembly, and turnkey delivery. The solution was jointly presented at ISH 2025 in Frankfurt. Standard configurations include 4 or 6 heat pumps (14 kW each) totaling 56 or 84 kW, with flexible capacity adjustment, integrated hot water preparation, and a 5-year warranty on the complete unit.
• Berns GruppecoreStrategic or Co-development PartnerBerns Gruppe founded PreFab TGA GmbH in 2021 as a company focused on industrial prefabrication of TGA modules. Following Wilo's acquisition of a majority stake, Berns Gruppe remains as a minority shareholder, property owner/landlord at the Kleve site, and strategic partner. Berns Gruppe is also a customer of PreFab, using its prefabricated cooling centers and distributor centers in their construction projects.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• KLEUSBERG GmbH & Co. KG: KLEUSBERG is a leading German modular construction company producing prefabricated building modules and modular space solutions. They are directly comparable to PreFab in the modular prefabrication domain, though with a broader focus on building shells rather than building services modules.
• Cadolto Modulbau GmbH: Cadolto is a German manufacturer of prefabricated modular buildings, particularly for healthcare and data center applications. Directly comparable to PreFab's container-format modular building services delivery and shares overlap in data center MEP module potential.
• Alho Group: Alho is a German modular construction specialist building prefabricated steel-frame modules for schools, offices, healthcare, and residential uses. Comparable to PreFab in modular factory-built construction, with overlap in steel-based structural prefab and DIN-compliant fabrication.

Broad incumbents

• Vaillant Group: Vaillant is a German heating, ventilation, and heat pump manufacturer serving residential and commercial markets. Comparable to PreFab as a peer in heat pump-based heating solutions for European building decarbonization and GEG compliance.
• Viessmann Climate Solutions: Viessmann is a leading German manufacturer of heating, industrial and refrigeration systems. Directly comparable as a heat pump and heating systems supplier and integrator—PreFab uses third-party heat pumps (e.g., Mitsubishi, Viessmann boilers) within its energy center modules.
• Geberit AG: Geberit is a Swiss-European manufacturer of sanitary technology and pre-wall installation systems. Comparable to PreFab in pre-wall installation products and broader plumbing/heating systems integration for European building services.
• Stiebel Eltron GmbH & Co. KG: Stiebel Eltron is a German heat pump and heating technology manufacturer focused on residential and commercial decarbonization. Comparable to PreFab's heat pump heating center product line addressing the GEG-driven residential renovation market.
• Wilo Group: Wilo Group is a German global manufacturer of pumps and pumping systems and is PreFab's majority shareholder (since June 2026). They are a broad incumbent in building services water technology and a strategic adjacency for PreFab's modular energy center expansion into data center and industrial applications.
• Bosch Thermotechnology (Bosch Home Comfort): Bosch Thermotechnology (formerly Buderus and Bosch heating brands) is a major German heating and HVAC manufacturer. Comparable to PreFab as a supplier of HVAC equipment integrated into prefabricated modules and as a broad incumbent in the German heating transition market.

Emerging players

• Mitsubishi Electric Europe B.V. Mitsubishi Electric is PreFab's strategic co-development partner for the GEG-compliant external heat pump heating center, supplying Ecodan air/water heat pumps. Comparable as a heat pump technology provider and a co-marketing partner at ISH 2025 in the same modular heating solution.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xxing.com/pages/prefab-tga-gmbh
• LinkedInlinkedin.com/company/prefab-tga-gmbh

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 PreFab TGA GmbH