ZEWOTHERM Group of companies

Achieving more together

ZEWOTHERM sees itself as a reliable and responsible partner for our customers from the sanitary and heating trade. The motto "achieving more together" embodies what we stand for: Competence in production, sales and joint market development. We are always working on providing our customers with advantages in production and sales and thus actively helping to shape their success.

The ZEWOTHERM group of companies today includes various production facilities and sales organisations which serve the demands and requirements of the sanitary and heating market in Germany and Europe individually - but always with the whole in mind.

In addition to the Remagen plant, which includes various systems for surface lamination, vacuum forming, automatic foaming and injection moulding, the group of companies also has further production sites at important hubs, including Bochum, Reichshof, and Tholen (NL).

Intensive partnerships that have grown over the years have also become an integral part of the group. Today, our company network includes permanent sales partners and branches in other European countries, in order to be able to serve our customers with coordinated sales concepts both in Germany and in other European countries. We are present in the Benelux countries, Luxembourg, Poland, Austria and Romania.

Zusammen mehr erreichen.


As a (new) member of the ZEWOTHERM group of companies, ZW Logistics already has in-depth industry knowledge. The requirements of factory transport, which have increased over the years, as well as the most varied logistics processes in the demanding SHK industry, have enabled us to analyse and optimise these processes and, as a logical consequence, to place this scheduling in our own hands - ZW Logistics. We actively use knowledge and experience in combination with our own developed AI software to apply these synergies within the group of companies and to extend the dititalised transport service to external partnerships. Trusting, transparent and reliable. Everything from one source.

In addition to drop shipments, just-in-time consignments, consignment deliveries on sometimes difficult construction sites or demanding routes with short transit times, ZW Logistics develops perfect solutions using state-of-the-art IT logistics programs. On schedule at the urgent unloading point. Without compromise. Transparent processes.

ZW Logistics sees uncomplicated transport for "APPsolut", whose AI-supported programs offer more than just a tracking system. We simplify your daily processes by providing an intuitive interface for documentation, payment and shipment tracking. This allows shipment processes to be handled on a single platform.


Our subsidiary in Holland, based in Breda, distributes the ZEWOTHERM heat and energy systems to our Dutch specialist partners and Benelux countries. Of course, the "Dutch all-round package" also includes the extensive ZEWOTHERM service, including planning, calculation, support and the professional installation of surface heating systems in new buildings and renovation projects.


The U-Tube-Systems production plant located in the Netherlands manufactures high-quality 5-layer heating tubes and distribution technology for modern surface heating and cooling systems. The initial good cooperation soon led to a participation of ZEWOTHERM in the Dutch company in order to deepen the clear orientation of in-house produced product components.


In Reichshof-Wehnrath in the Oberbergische Land region of Germany, we produce our own polyethylene heating pipes under a joint venture with Unatherm, the early pioneer in PE pipe technology and a family business also committed to innovation. The production of high quality pipes requires constant quality control from material delivery to the product ready for dispatch.

Special attention is paid to the monitoring of pipe production - it is seamless: Incoming goods inspection, monitoring of the production process, tests during and after production, final inspection before dispatch, the basis for quality assurance are the testing and monitoring regulations of the Süddeutsche Kunststoffzentrum and other European testing institutes, the production process according to DIN ISO 9002 and the corresponding DIN regulations. Each delivery of raw materials is tested for the melt index according to DIN 53735, as this is decisive for the later quality of the pipe. Only perfect goods are released for production. The machines and equipment used for production are always state-of-the-art. For example, our PLC-controlled extruders are the basis for optimum pipe production.

During pipe production, the production process is continuously monitored in accordance with DIN 8074/8075 and SKZ guidelines HR 3.2/HR 3.16. The dimensional accuracy of wall thickness and outside diameter (DIN 8075 4.2), the surface and the water-bearing inner surface are checked. All measured data are documented and can be retrieved at any time, even after years. After completion of the pipes, the following are tested: the change after hot storage (DIN 8075 4.4) the homogeneity of the material the pressure stability at 20° C and 95° C (DIN 53759). Only controlled and perfect pipes are released for dispatch.

At the Bochum plant, thousands of square meters of high-quality EPS system insulation products leave the premises every day in addition to the plant at the company headquarters in Remagen. These include system boards, and multi-insulation rolls, Velcro system boards and/or other EPS-laminated products. Situated directly at the factory of the pre-supplier, this means an immense strategic and logistical advantage in order to be able to deliver the "white goods" quickly and directly to the local customers by forwarding agents and/or our own vehicle fleet.

Independent, family-run manufacturer and service provider in the field of surface heating systems based in Asbach. ratiodämm is not a "system brand" in the classic sense, but a flexible outfitter for OEM customers from industry and trade as well as qualified specialist retailers with their own focus. The product range includes everything for heat distribution and insulation systems, pipe fixing technology and panel heating - from jointly developed product components and individual solutions to completely assembled systems, even beyond standard applications. In addition to the highest quality standards, discretion, reliability and a fair price-performance ratio are the company maxims that are lived every day.


Independently acting company, which aims at the development and production of products from the surface heating for industry and specialized trade (OEM). ibb Systeme manufactures, refines and sells components, complete solutions and services from the business fields of thermoformed parts/deep-drawn parts, special lamination, injection moulding/plastic moulded parts as well as special designs and tools. For customers from industry and system providers in the OEM business segment, individual solutions are offered at an appropriate price/performance ratio and thus added value.