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Over 10,000 spare parts for all types of windows
Over 10,000 spare parts for all types of windows



Effectively seal windows and protect them from external influences
Seals for windows of any type or year of construction
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Pflege der Mechanik eines Fensters

Maintenance and improvement of mechanics
Accessories for energy-efficient window technology
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Book a consultation now!

Book a consultation

Book a consultation

We will be happy to support and advise you by phone or in person in our specialist shop.

Order sample boxes

Sample - Order seals & simply try them out

Over 10,000 spare parts

for windows and doors of any brand or year of manufacture

Find the right spare part

We are happy to help!

High quality

New & used spare parts in top condition

Our categories

Suitable sealing parts for every need

Huge selection of seals and spare parts for windows of any year or brand

Perfect fit for every window

Are you unsure which spare part fits your window best?
Take advantage of the various opportunities to get advice from us!

Write e-mail

Write us an email and send photos via:

Send spare part

Send us your old spare part by post, we will be happy to advise you!

Come by in person

Come by in person and let us advise you immediately.

Dichtungsmax stands for qualitative window technology

Matching sealing parts and replacement accessories to fit every window.
About Us

About Us

In our central warehouse near Ulm we have over 10,000 spare parts and replacement seals for current, middle-aged and very old window and door systems of all brands.

Our aim is to offer customers a wide range of products that are always technically up to date and also support older systems.
We place great emphasis on quality and provide our customers with comprehensive advice .

Learn more

Thats what our customers say

Customer satisfaction is very important to "Dichtungsmax Fenstertechnik"!
For example, I received excellent support in finding the right seal for our windows.

I clearly recommend "Dichtungsmax Fenstertechnik"!


I was looking for a corner hinge for our wooden patio door because it was broken.
Couldn't find the right part even using the manufacturer's product search.
At Dichtungsmax I only had to send a few pictures by email and I got an answer straight away. I then ordered the replacement part from there and it was delivered super quickly.
An all round great service!!!

Christian B.

Dichtungsmax Fenstertechnik has an extensive range of fittings, so I found the fitting I needed from GU there. Shipping was very quick. The fitting now holds our balcony door in place. Well done Dichtungsmax

Peter S.

It couldn't be better! I ordered the wrong parts by mistake!
The exchange was carried out without a problem! Even the shipping of the correct parts was free of charge! I can recommend "DICHTUNGSMAX" to EVERYONE! Best service! I will definitely order from "DICHTUNGSMAX" again if necessary!!!
THANK YOU and best regards! Walter

Walter G.

At Dichtungsmax in Burgau you can get the right seals and spare parts for windows and doors, from every manufacturer and age. Very friendly and recommendable!

Thomas N.

Install sealing parts in no time - our tips

Install sealing parts in no time - our tips

In our own workshop, we have been renovating or installing countless windows and doors for many years. This has enabled us to accumulate extensive know-how and we would like to pass on our expertise to you.

You can find our tips and tricks as well as assembly instructions here.

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Seal assembly made easy

This means you can easily replace your seals yourself.

Dichtungsmax Blog

  • Fensterdichtungen eigenständig wechseln
    October 20, 2023

    Change window seals yourself

    A large amount of heat escapes through poorly insulated windows and doors. Better sealing can therefore help to reduce the room temperature a little in summer or keep the heat in the house on cold days. Replacing windows is often...

    Read now
  • Fensterdichtungen richtig pflegen - so geht´s
    October 20, 2023

    How to properly care for window seals

    Cleaning windows can sometimes be quite annoying, and we usually only do it when there is already dirt or streaks visible. However, it is very important to clean the windows and their components regularly, as they are constantly exposed to...

    Read now
  • Ältere Fensterdichtungen erneuern
    October 19, 2023

    Replace older window seals

    It's getting colder outside and despite all the heating, the apartment isn't really warm. This can often be due to leaky windows or doors, as the draft always finds its way inside and the heat escapes very quickly. That is...

    Read now

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Free Shipping

from a delivery of 250€

*within Germany*

How to reach us:

Monday to Friday

(excluding Wednesday)

from 09.00 to 12.00

+ 49 (0) 8225 - 9581747

Sample seal

Sample - Order seals & simply try them out

Come visit us in person

Monday to Friday from
8.30 a.m. - 12.30 p.m.