For over 50 years, European market leader in custom-made door gaskets for professional refrigeration and freezing equipment.
With our unique proposition, we help refrigeration companies generate more revenue.
With Europe's largest assortment of profiles, we always have the right seal, even if the original has been unavailable for years.
History of DSU
DSU was founded in 1969 by Rob and Giny Postma as a mail-order company. From Uden, they sent door cuffs and other parts for household appliances to private individuals in the Netherlands and Belgium, hence the name Deurmanchet Service Uden (DSU).
From 1976, DSU began to specialize in the niche market for door gaskets for refrigeration technology. The reason for this was a customer request for a door gasket for an outdated refrigerator that was no longer available anywhere. From there, specialization in this niche market continued. The sale of parts for household appliances became an increasingly smaller part of the activity and eventually stopped to fully focus on the production of custom-made door gaskets.
See also the more detailed timeline of our history at the bottom of this page
What we do
DSU supplies custom-made door gaskets, from 1 piece for a refrigeration company to complete series for manufacturers of refrigeration units. Through Deurrubberservice, we also arrange installation for end-customers in the Benelux. Every order is fully custom-made in our own production facility in Uden. You always get the right profile, even if the original has been unavailable for years.
We are here for...
- We help refrigeration installation companies and commercial kitchen service organizations with maintenance and replacement in retail and hospitality.
- Parts wholesalers who do not produce themselves but want to supply door gaskets to their own refrigeration customers.
- We help manufacturers of refrigeration equipment with small to medium-sized series and new products for which no standard profile yet exists, as well as with aftersales.
- End-users in HORECA and retail via Deurrubberservice in the Benelux.
For refrigeration service companies
We help refrigeration companies generate more revenue with our proposition for replacing door gaskets. Our website, catalog, and sample case help to quickly find the right profile, supplemented with advice from our experienced team for every inquiry. This saves time on-site and generates more revenue per service visit. Through the customer portal, you can easily create quotes, calculate prices directly, and place your order, with constant insight into the status and history of previous orders.
For manufacturers of refrigeration equipment
For manufacturers, too, we are more than just a supplier. We actively participate in the development of new refrigeration unit series and advise on material selection, fastening methods, and magnet options. This ensures every seal performs optimally in practice. We remain involved even after the development phase. Our aftersales support helps manufacturers limit their spare parts inventory without compromising service to their own customers.
Quality in every step
Every order goes through a fully controlled production process in Uden. A check is performed at each step before moving on to the next, followed by a comprehensive final inspection of dimensions and finish. The result: more than 99% of our orders are shipped flawlessly with a standard lead time of 2 to 5 business days.
DSU in figures
900+ brands of refrigeration and freezing equipment for which we have a suitable profile
450+ profile types: the largest assortment in Europe
50+ years of experience in materials, applications, and market developments
30+ countries from Switzerland and Norway to the United Kingdom, with a growing presence at trade fairs such as Chillventa, HOST, and Euroshop
99%+ of orders delivered flawlessly
2 to 5 days standard shipping time
Innovation in materials
In addition to standard PVC profiles, we continuously develop new solutions for specific applications. Our Soft PVC profiles remain flexible at low temperatures, while our Extended Life profiles, made of TPE, are developed for intensive and long-term use.
Internationally active
From Uden, we now serve customers in more than 30 countries. We are set up for delivery via various parcel services within the EU. But outside the EU, too, we have found an optimal working method through partnerships with local distributors in, for example, Switzerland and Norway. There, customers can order directly from DSU and receive deliveries. Customer support is provided in their own language and currency by our distributor. This method ensures fast delivery and an optimal customer experience for support.
With a strong presence at international trade fairs such as Chillventa, HOST, and Euroshop, our international visibility continues to grow.
What we stand for
Precision
Every profile is custom-made, down to the millimeter.
Reliability
Fixed delivery times and an assortment that is continuously expanded, even for older or hard-to-find profiles.
Knowledge
More than 50 years of experience in materials, applications, and market developments.
Ambition
We continue to invest in knowledge, capacity, and international growth.
-
2024
Factory expansion
The expansion of the building on Neutronenlaan is completed: 2,400 m² of factory space and 50% more production capacity. The space is equipped for new machines, including automatic magnet machines and welding machines that weld multiple seals simultaneously. Larger series and busy periods thus remain within the normal delivery time.
-
2022
First international trade fair
DSU exhibits for the first time at Chillventa in Germany. This is followed by HOST in Milan and EuroShop in Düsseldorf. Trade fairs have now become a regular gateway for new collaborations and for contact with customers from all over Europe.
-
2019
Relocation to Neutronenlaan 1
DSU moves to Neutronenlaan 1 in Uden: 1,600 m², once again more than a doubling. Additional production workstations and office space are added, along with extra high warehouse space. More workstations mean more orders in production simultaneously, more warehouse space means more profile types in stock. The building has solar panels, fully electric climate control without a gas connection, ample parking, and charging stations.
-
2017
Partnership with Poeisia Gruppe, Switzerland
DSU and Poeisia Gruppe together establish a working method for the Swiss market. Customers order directly from DSU and are supplied directly from Uden. Support and invoicing are handled via the partner, in their own language and currency. Swiss customers thus receive the same customization and delivery time as elsewhere in Europe.
-
2010
First sample case
DSU releases the first sample case with door gasket profiles. A technician can use it on-site to determine which profile fits, or what can be used as an alternative if the original is not available. That saves a second visit to the customer. The sample case and catalog are then gradually expanded and refined.
-
2006
First webshop
DSU launches a webshop in three languages. Customers can assemble their door gasket there themselves and immediately see the price. Configuring and calculating the price of a custom product online was still unusual in the B2B market in 2006. Requesting a quote and waiting is no longer necessary for these customers.
-
2000
To the Pannebakkerstraat
DSU moves to Pannebakkerstraat 2 in Uden: 750 m², more than a doubling of production space, with a larger warehouse, additional workstations, and more office space. More profile types in stock means that requests can more often go directly into production. The building remains in use until 2019.
-
1976
From household appliances to refrigeration technology
A customer is looking for a door gasket for a refrigerator that is no longer in production. Rob contacts a profile manufacturer, and together they develop a method to custom-make door gaskets for refrigeration technology. Whether a replacement door gasket is still available is no longer a matter of stock, but of production. From that moment on, DSU focuses on refrigeration technology.
-
2023
Production system MES
DSU implements an MES (Manufacturing Execution System), which digitally controls and monitors the production process. Planning becomes more accurate, capacity is utilized more efficiently, and orders flow through faster. Every production step is registered and checked before an order proceeds. The result: a delivery time of 2 to 5 working days and more than 99% of orders shipped flawlessly.
-
2019
Establishment of Deurrubberservice
Several large Dutch refrigeration technology companies want to outsource the replacement of door gaskets. For this purpose, DSU establishes Deurrubberservice, a subsidiary for the Benelux. In addition to supplying the door gasket, Deurrubberservice also handles installation at the end customer. The customer relationship remains with the refrigeration technology company if desired.
-
2018
Partnership with Ullstrom Fepo, Norway
Ullstrom Fepo becomes a partner for Norway. They are the best-known supplier of refrigeration technology parts in Norway. The working method is the same as in Switzerland: delivery from Uden, support and invoicing via the partner. The entire DSU assortment can thus be ordered in Norway from a supplier who already knows the market.
-
2016
New corporate identity, catalog, and webshop
A new corporate identity, catalog, and webshop. Profiles are easier to find, prices are quicker to calculate, and orders are simpler to place, in every country where DSU delivers. At the same time, the positioning becomes sharper: one specialist for door gaskets for all professional refrigerators and freezers.
-
2009
Acquisition by Jeroen Steringa
Jeroen Steringa acquires DSU from Rob and Giny Postma. The company was already supplying outside the Netherlands, but there was still a lot of growth potential. His strategy: further specialization and investment in production technology, with the goal of more profiles and shorter delivery times.
-
2004
Nomination for Company of the Year
DSU is nominated for Company of the Year in Uden. The company then has seven employees and more than 125 profile types in its assortment. Because each profile is custom-made, even one piece can be ordered: DSU does not have a minimum order quantity.
-
1998
Relocation to the Westwijk
Het assortiment past niet meer in de garage. DSU betrekt een pand van 200 m² aan de Westwijk in Uden, met ruimte voor extra machines en voor meer verschillende profielen. Elk profiel dat erbij komt zorgt voor meer merken en type koelingen waarvoor DSU een oplossing heeft. Dat aantal groeit door tot de meer dan 450 profielen passend voor meer dan 900 merken van nu.
-
1969
Founding in Uden
Rob and Giny Postma start DSU in their garage in Uden, alongside their jobs. A mail-order company for washing machine door seals and other parts for white goods, delivered to private individuals in the Netherlands and Belgium. The name describes what the company does: Deurmanchet Service Uden.
-
2024
Factory expansion
The expansion of the building on Neutronenlaan is completed: 2,400 m² of factory space and 50% more production capacity. The space is equipped for new machines, including automatic magnet machines and welding machines that weld multiple seals simultaneously. Larger series and busy periods thus remain within the normal delivery time.
-
2023
Production system MES
DSU implements an MES (Manufacturing Execution System), which digitally controls and monitors the production process. Planning becomes more accurate, capacity is utilized more efficiently, and orders flow through faster. Every production step is registered and checked before an order proceeds. The result: a delivery time of 2 to 5 working days and more than 99% of orders shipped flawlessly.
-
2022
First international trade fair
DSU exhibits for the first time at Chillventa in Germany. This is followed by HOST in Milan and EuroShop in Düsseldorf. Trade fairs have now become a regular gateway for new collaborations and for contact with customers from all over Europe.
-
2019
Establishment of Deurrubberservice
Several large Dutch refrigeration technology companies want to outsource the replacement of door gaskets. For this purpose, DSU establishes Deurrubberservice, a subsidiary for the Benelux. In addition to supplying the door gasket, Deurrubberservice also handles installation at the end customer. The customer relationship remains with the refrigeration technology company if desired.
-
2019
Relocation to Neutronenlaan 1
DSU moves to Neutronenlaan 1 in Uden: 1,600 m², once again more than a doubling. Additional production workstations and office space are added, along with extra high warehouse space. More workstations mean more orders in production simultaneously, more warehouse space means more profile types in stock. The building has solar panels, fully electric climate control without a gas connection, ample parking, and charging stations.
-
2018
Partnership with Ullstrom Fepo, Norway
Ullstrom Fepo becomes a partner for Norway. They are the best-known supplier of refrigeration technology parts in Norway. The working method is the same as in Switzerland: delivery from Uden, support and invoicing via the partner. The entire DSU assortment can thus be ordered in Norway from a supplier who already knows the market.
-
2017
Partnership with Poeisia Gruppe, Switzerland
DSU and Poeisia Gruppe together establish a working method for the Swiss market. Customers order directly from DSU and are supplied directly from Uden. Support and invoicing are handled via the partner, in their own language and currency. Swiss customers thus receive the same customization and delivery time as elsewhere in Europe.
-
2016
New corporate identity, catalog, and webshop
A new corporate identity, catalog, and webshop. Profiles are easier to find, prices are quicker to calculate, and orders are simpler to place, in every country where DSU delivers. At the same time, the positioning becomes sharper: one specialist for door gaskets for all professional refrigerators and freezers.
-
2010
First sample case
DSU releases the first sample case with door gasket profiles. A technician can use it on-site to determine which profile fits, or what can be used as an alternative if the original is not available. That saves a second visit to the customer. The sample case and catalog are then gradually expanded and refined.
-
2009
Acquisition by Jeroen Steringa
Jeroen Steringa acquires DSU from Rob and Giny Postma. The company was already supplying outside the Netherlands, but there was still a lot of growth potential. His strategy: further specialization and investment in production technology, with the goal of more profiles and shorter delivery times.
-
2006
First webshop
DSU launches a webshop in three languages. Customers can assemble their door gasket there themselves and immediately see the price. Configuring and calculating the price of a custom product online was still unusual in the B2B market in 2006. Requesting a quote and waiting is no longer necessary for these customers.
-
2004
Nomination for Company of the Year
DSU is nominated for Company of the Year in Uden. The company then has seven employees and more than 125 profile types in its assortment. Because each profile is custom-made, even one piece can be ordered: DSU does not have a minimum order quantity.
-
2000
To the Pannebakkerstraat
DSU moves to Pannebakkerstraat 2 in Uden: 750 m², more than a doubling of production space, with a larger warehouse, additional workstations, and more office space. More profile types in stock means that requests can more often go directly into production. The building remains in use until 2019.
-
1998
Relocation to the Westwijk
Het assortiment past niet meer in de garage. DSU betrekt een pand van 200 m² aan de Westwijk in Uden, met ruimte voor extra machines en voor meer verschillende profielen. Elk profiel dat erbij komt zorgt voor meer merken en type koelingen waarvoor DSU een oplossing heeft. Dat aantal groeit door tot de meer dan 450 profielen passend voor meer dan 900 merken van nu.
-
1976
From household appliances to refrigeration technology
A customer is looking for a door gasket for a refrigerator that is no longer in production. Rob contacts a profile manufacturer, and together they develop a method to custom-make door gaskets for refrigeration technology. Whether a replacement door gasket is still available is no longer a matter of stock, but of production. From that moment on, DSU focuses on refrigeration technology.
-
1969
Founding in Uden
Rob and Giny Postma start DSU in their garage in Uden, alongside their jobs. A mail-order company for washing machine door seals and other parts for white goods, delivered to private individuals in the Netherlands and Belgium. The name describes what the company does: Deurmanchet Service Uden.
Curious what DSU can do for you?
Search by brand and model of your refrigeration unit or use the configurator to immediately calculate the price of your door gasket.
