
Building installations
From ventilation housings to heating components, every building installation is unique and every project requires customization. Timmerije develops plastic components that contribute to energy-efficient, reliable, and maintenance-friendly systems that fit perfectly into the overall installation. Our expertise in injection molding and co-engineering ensures results-oriented solutions that prove their value in practice.
Our approach to building installations
Building installations place high demands on plastic components. They must be able to withstand temperature fluctuations, endure long periods of use, and function accurately within complex systems. At Timmerije, we combine in-depth knowledge of materials, injection molding technology, and system integration to develop solutions that meet these stringent requirements and support the performance of the entire installation.
Our approach enables us to tackle complex installation projects in a targeted manner. Thanks to this approach, we can deliver customized solutions and produce plastic components that are durable, maintenance-friendly, and future-proof. These contribute directly to the efficient and reliable operation of building installations. In this way, we ensure that every installation performs optimally and retains its value over the long term.
Examples of applications
Our plastic solutions are used in a wide range of building installation components. They contribute to reliable, energy-efficient, and sustainable systems that are used intensively on a daily basis. From smart solutions that optimize the operation of installations to sustainable components that deliver long-term results:
- Ventilation – durable components for optimal airflow
- Heating – components that deliver long-lasting performance
- Electrical installation – for a safe electricity supply
- Light tunnels – robust components for reliable light transmission
Customer case: Compress 5800i AWR – Bosch
Timmerije has contributed to the development and design of various plastic visible parts for Bosch’s high-efficiency boilers. Since April 2023, the company has been operating under the name Bosch Home Comfort Group, a name that emphasizes their leading position in the field of green technologies. With this, Bosch not only underlines its commitment to innovative and energy-efficient solutions, but also its responsibility to society, the environment, and everyday life.
“Our long-standing, sustainable collaboration has resulted in designs that have always been prepared for the future.”
Timmerije recently developed plastic housing components for a new Bosch heat pump, the Compress 5800i AWR. The large honeycomb outer section posed a particular challenge. It had to be both flat and visually appealing. During the development process, attention was paid to material selection, flow simulations with warpage calculations, and production processes that are consistent and controllable. As a result, the components are technically robust and aesthetically pleasing.
The Compress 5800i AWR is an important innovation for Bosch Home Comfort Group. The abbreviation ‘AWR’ stands for ‘Air Water Rooftop’ and is specially designed for sloping roofs. With this solution, Bosch is actively responding to the energy transition and helping to heat both homes and commercial buildings more efficiently and sustainably. The plastic housing components contribute to the reliability and long service life of the heat pump, making it a future-proof solution.
Images: Bosch
Collaborations that make an impact
In addition to Bosch, Timmerije collaborates with leading brands such as Remeha, Brink Climate Systems, and Zehnder. These manufacturers develop innovative systems for heating, ventilation, and climate control in homes and commercial buildings. As a co-engineer, Timmerije contributes ideas from the design phase onwards about the manufacturability, choice of materials, and service life of plastic injection-molded parts. This results in high-quality components that contribute to efficient production, a strong brand image, and an optimal indoor climate.
Timmerije combines technical expertise with process optimization, thereby making an important contribution to the future of sustainable building installations.


