Here is what we do

F. Willich, with its sister companies, is one of the leading international manufacturers of building materials and chemical products.

The products are used in building construction and civil engineering, sewer repair technology, tunneling, mining, special foundation engineering, and for the industries and craftwork. Our customers insulate, waterproof, seal, bond, inject, fasten, anchor, fill cavities, repair, and renovate. Fitting technical- and processing equipment and anchor technique complete the range of products. We produce polyurethane-, silicate-, epoxy-, phenolic-resins, polyurea, hydro-structure resin, grout systems in Germany, Poland, and Russia. Since 1882 the company, today owned and run by the 5th generation, is focused on partnership, innovation, and resource-saving activities.


Our Philosophy

We are a medium-sized, family owned company. 
We are good at selecting and leading people who carry our business self responsibly. Our employees are the foundation of the company. We are innovative and profitable and constantly moving in that direction.

Our Goal 
We generate the revenue and profit we need to build and develop a healthy business. We use our funds towards a sustainable future of our companies and employees. We create jobs and commit to them on a long term basis.

We constantly challenge our ways of doing business and continuously improve them. We are open for new ideas and we are willing to change if they are better than what we do today. We create added value for our customers.

Self responsibility
Each one of us works actively towards the success of our business. We act to generate profits, we stick to our values and we take responsibility for the results for our actions.

We act cherishable & self-critical, we are reliable and trustworthy. We respect the rights, norms and culture of our partners. We expect the same of them. We act upon the rules we give ourselves and stick to them.

Through the ages

Since 1882 in Dortmund


Company foundation in Dortmund. The company was founded in Dortmund carrying its founders name: Franz Willich. The Company’s purpose is to insulate pipes and vessels with sheet metal casing.


Opening a branch in Düsseldorf. Opening a branch in Düsseldorf, expansion of mining business, these include the delivery of driving belts and conveyor belts made from rubber.


International assembly department The Assembly Department operates nationally and internationally in the fields of iron-, coal-, potash- and chemical industry as well as in the fields of breweries, distilleries and major municipal construction operations. The company invests into the first telephone switchboard and purchases the first truck with solid rubber tires.


Technical insulation becomes an official profession. It is now taught at the public apprentice school. Another foodhold of the company is trade in locomotives and spare parts. The company buildings have been completely destroyed by the Second World War.


Reconstruction and major contract The reconstruction of the company buildings and grounds is still undergoing. The company finds its new home close to the inner harbor of Dortmund and closes a major contract (DEA Refinery).


Continuous upward trend After the death of Egon Jaeger in 1979, Hans and Fritz Jaeger, take over the company. As a consequence of strong continuous growth the company moves to a new company building in Dortmund-Dorstfeld. The company turnover has almost tenfold in the last twenty years.


Some film impressions from the past – Click here


100th anniversary Willich celebrates its 100th anniversary with 2.100 employees.


Two company groups The group of companies held by the brothers Hans Jaeger & Fritz Jaeger is divided into two groups of companies. The Willich Group, headed by Fritz Jaeger: Focusing on Insulation-, mining and electrical heat tracing. The Jaeger Group, headed by Hans Jaeger: Focusing on acoustic and dry lining, underground construction, sewer and pipe construction.


Takeover Reinhold and Mahla takes over the sections of insulation and electrical heat tracing.


New Managing Director Friederich Jaeger is appointed as the new Managing Director of F. Willich Dortmund. F. Willich starts to refocus on products where it has know how, production and distribution competence. The company now produces products for technical insulations based on phenolic foams, polyurethane systems and fire-resistant high temperature foams.


Sewer renovation The sewer repair section is established. Due to innovative product developments it is growing to this day.


Re-entry in the business segment mining


Production and sales of epoxy resin products


Re-entry in tunneling and civil enginieering


F. Willich celebrates the140th anniversary with customers, suppliers and friends – Some impressions of the anniversary celebration you can see here: Click here