We operate in the three main competencies areas of civil engineering, building services technology and power supply and provide the market with:

Sealing systems for pipes and cables
Single and multi-line house entries for supply and disposal lines
Fire protection products for preventive structural fire protection
Special designs and custom-made sealing systems

Success needs experience and know-how

Consistent customer orientation, high reliability, excellent product quality and service orientation as well as sound technical advice with heart and mind have made DOYMA the epitome of a premium brand.

60 years of experience and the willingness to continuously improve our products, processes and skills are the basis of future-oriented innovations. Over 240 employees share their knowledge and skills with passion for your customers. Highly specialized competence teams for sealing and fire protection systems have answers to the most difficult questions and find solutions where others don`t know what to do.

The key to success

"At the beginning I was dealing with sound insulation for heating systems," remembered DOYMA company founder Hans-Ullrich Ihlenfeldt. "There were no such products on the German market yet: I imported this product directly from Denmark. With success! Through careful observation of the construction sector, I recognized an unsolved problem for planners and tradesmen: the sealing of building ducts by pipelines! Such seals should be easy to install and permanently seal against moisture. We consequently developed an innovative professional system consisting of fiber cement casing and sealing insert. A permanently sealed and precisely fitting complete solution. We showed the new development in 1967 at the ISH in Frankfurt. And that was a direct hit! "

The DOYMA GmbH & Co grew out of the consistently continued basic idea of safe building implementation, which constantly continues its entrepreneurial success story.

Corporate policy

Our company is constantly facing the challenges of the market. We want to constantly improve for the benefit of our customers and to safeguard our own interests in all phases of our service provision. Satisfied customers, healthy and motivated employees, the performance of our company and long-term, sustainable growth are the goals.

Customer satisfaction
High quality standard
Market orientation and flexibility
Quality responsibility
Continuous responsibility for improvement
Employee orientation
Supplier relationships
Environmental Protection

Corporate policy

Our company is constantly facing the challenges of the market. We want to constantly improve for the benefit of our customers and to safeguard our own interests in all phases of our service provision. Satisfied customers, healthy and motivated employees, the performance of our company and long-term, sustainable growth are the goals.

Customer satisfaction
High quality standard
Market orientation and flexibility
Quality responsibility
Continuous responsibility for improvement
Employee orientation
Supplier relationships
Environmental Protection

Doyma GmbH & Co. Downloads

Doyma - Model DOYMAfix Connect HP/O - Heat Pump Inlet - Brochure

Doyma - Model DOYMAfix HP/O - Heat Pump Inlet - Brochure