Granite House: Head Office
 Head Office


Catalyst Computer Systems Ltd.
Granite House,
58 Loughborough Road,
LE12 7AT.
 Telephone +44(0)116 230 1500 (Reduced service)
Please email any sales or support queries.
 Fax +44(0)116 230 1522
 FAQ's, Guides, Hints, Tips, Advice and more Knowledge Base
Office hours are 9:00am to 5:30pm Monday through Friday (for emergency out of hours support see 'Out of Hours' below).

Out of Hours See here for details.
Urgent Weekend Hotline:  +44(0)781 804 4086
Emergency Out of Hours:

There will be a charge for any services provided out of our existing maintenance agreements. These emergency services do not affect your existing maintenance agreements/rentals in any way, and are intended to compliment other services under exceptional circumstances.

Urgent Weekend Hotline

Weekend Hotline

Emergency Hotline Support cover is available on Saturday's from 9:00am to 1pm, Sunday's from 10:00am to 2:00pm and also on bank holidays from 10:00am to 2:00pm.

  • Our Emergency Hotline Telephone Number is +44(0)781 804 4086.
  • See our Knowledge Base for details on how to get this service.

Emergency Out of Hours

For emergency support for equipment not covered by a current maintenance agreement or out side of our usual working times (see above) please e-mail details including the nature of the problem, the equipment involved and details of who and how to contact the staff involved to our emergency out of hours email address.

Catalyst will endeavour to get back to you as soon as possible.

Weekend Hotline