In the event of a repair or warranty claim, please contact our central customer service workshop at the following address

U&W GmbH
Jakob-Wolf-Str. 26
63179 Obertshausen
Phone +49 (0) 6104/60 05 100
Fax +49 (0) 3212/12 39 075 

or to one of our other customer service workshops.

Other customer service workshops


Hans-Zinser-Straße 1-3
73061 Ebersbach/Fils

Central customer service workshop
U&W GmbH

Jakob-Wolf-Str. 26
63179 Obertshausen
Phone +49 (0) 6104/60 05 100
Fax +49 (0) 3212/12 39 075

Factory service
Hans Sauer GmbH
Barkhausenweg 8
22339 Hamburg
Phone +49 (0) 40/5 38 99 20
Fax +49 (0) 40/5 38 10 37

Fa. Biebrach - C.H. Morgenstern GmbH
Leipziger Straße 136
01127 Dresden
Phone +49 (0) 351/8032147
Fax +49 (0) 351/8045358

Hans Sauer GmbH – Commercial equipment
Barkhausenweg 8
22339 Hamburg
Phone +49 (0) 40/5389920
Fax +49 (0) 40/5381037

SCHERRER Handelsgesellschaft mbH
Head office Hannover
Gretlade 2
31319 Sehnde OT Höver
Phone +49 (0)5132 / 9200-16
Fax +49 (0)711 / 28559-10

SCHERRER Handelsgesellschaft mbH
(former D.+E. Cruse)
Maybachstr. 3
38112 Braunschweig
Phone +49 (0) 531 / 3557192-0
Fax +49 (0) 531 / 3557192-29

Procedure in case of repair:

To make the repair as uncomplicated and fast as possible, the following checklist serves:

  1. Fill in the service-receipt (warranty card) enclosed with the device, alternatively you can also fill in our "Online repair registration".
  2. Enclose copy of original invoice and warranty certificate
  3. In the event of a warranty claim, contact the central factory service department (see above for address). In case of repair, the device can also be sent to one of the other authorized workshops.
  4. Pack the device securely for transport. We accept no liability for damage caused by improper packaging!
  5. Sending the device to the factory customer service or authorized workshop

The workshop will take care of the further processing.

Online repair registration

For a quick and uncomplicated repair, you can fill out the form and register the repair.

Service & repairs of starmix special vacuum cleaners (H-asbestos):

You have purchased a vacuum cleaner of dust category H-asbestos. According to TRGS 519 (§7.2 paragraph 7), devices of this category must be serviced and, if necessary, repaired as required, but at least once a year by a company approved and certified in accordance with the Hazardous Substances Ordinance. For our starmix H-asbestos vacuum cleaners, we have concluded a contract with the following company for this purpose:

Customer service (only for H-asbestos vacuum cleaners)

Delivery address (please ship the device only after prior coordination with ASUP):

Repair and service workshop:
ASUP Duisburg

Renting & Service
Mausegatt 26
47228 Duisburg
Phone +49 (0) 20 65 / 423 48-70
Fax +49 (0) 20 65 /423 48-99

Order acceptance:


Beckendorfer Bogen 10
21218 Seevetal
Phone +49 (0) 41 05 / 59 888-0
Fax +49 (0) 41 05 / 59 888-99

If necessary, please contact the above-mentioned company directly to discuss the details of processing directly.

Please note the following in advance:

  • Please send the device cleaned, emptied, packed securely for transport and dust-tight. If necessary, label according to hazardous material regulations.
  • The serviced device is identified by a maintenance stamp and receives a maintenance report with test certificate

Repairs outside the scope of maintenance will be communicated to the customer in the form of a cost estimate and carried out after confirmation.

Repair of battery vacuum cleaner

Please note the following when repairing cordless vacuum cleaner:
  • Please always send in battery devices without batteries. The batteries remain with you!
  • Li-Ion batteries - even if they are installed in the device - must not be sent to us or to our customer service workshops!

Li-Ion batteries are dangerous goods and special regulations apply. Please contact our customer service workshops in case of complaints about individual batteries.

Notes on the disposal of rechargeable batteries:

  • Do not throw battery packs into the water!
  • Battery packs and machines must not be disposed of in household waste. Follow national regulations for separate collection and recycling.
  • Used rechargeable devices and batteries can be returned to the specialist trade, our customer service workshops or local disposal points. This should normally be possible free of charge.
  • The battery must be returned secured against short circuit, e.g. insert in original packaging, insulate contacts with adhesive tape.
  • Before disposal, discharge the battery pack in the device.