Contact us

Contact us


For information about our climate cabinets you can complete the following form or call us on +31 (0)30 2511191.

We are closed on the following days*:

Summer holiday: Monday July 17 – Tuesday August 1  (*see information below)

Monday December 25 – Christmas

Tuesday December 26 – Boxing day

*PS During the holidays we are still present but due to minimal staff no viewings can take place during that period and there may be a delay in answering telephone / email and asking for your understanding.

If you would like to view our climate cabinets, we would like to invite you to Nieuwegein. We are located at the Ravenswade 150R in Nieuwegein (The Netherlands).

If you wish to come by, please make an appointment in advance so that we can schedule you (an explanation will take approximately 30 minutes). Viewing is possible from Monday-Friday.

The reason for making an appointment is because we have two warehouses where the climate cabinets are prepared (Nieuwegein and Vianen) and since we do not know in which warehouse we will be at that time, we ask you to make an appointment so that you for example, does not end up in front of a closed door (viewing is only possible in Nieuwegein).

Information request, also for rentals.

If you are interested in our products you can contact us using the contact form or by telephone.

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Tel. +31 (0)30 – 2511191

Head office
Ravenswade 150R 
3439 LD Nieuwegein
The Netherlands

Warehouse 1
Ravenswade 150R
3439 LD Nieuwegein

Warehouse 2
Dijkleger 4
4131 MA Vianen

South East Asia

No.1, Jalan Dutamas 1
50480 Kuala Lumpur 
Tel +60 36206 3848
E mail:

Germany, Austria, Switserland

CoolVaria / Diwa-Klima
Diwa-Klima GmbH
Rainer-Haungs-Strasse 6
77933 Lahr
Tel. +49 (0)781 9914088
Fax. +49 (0)781 9914089
E mail:


2, Rue Jean Paul Sartre
84500 Bollene
Tel +33 XXXXXX
E mail:

Région Bordeaux (33000)
CoolVaria / SCEA Crampes & Fils
6 Château Gayon
33490 Caudrot – France
Tel +33 (0)5 56 62 81 19
Fax +33 (0)5 56 62 71 24
E mail: