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How to Contact AVAST

Technical & Billing Support

Trouble with installation? Need your license again? Contact our Technical Support. Or, to chat with other avast! users, visit our forum.

Technical Support AVAST Forum

Sales Enquiries

Freephone: 08000 337903
Land-line: 05603 670263

Business hours: Monday-Friday
08:00 - 00:00 (midnight)
UK Time Zone

Customer Support Find your local avast! partner

Report a Virus

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AVAST Software’s Global Offices

Czech Republic (HQ)

AVAST Software a.s.
Trianon Office Building
Budejovicka 1518/13a
140 00, Prague 4
Czech Republic

Phone: 00 420 274 005 777
Fax: 00 420 274 005 888

General contact

Registration Number: 27636917
VAT Number: CZ27636917

Registered in the Commercial Register, administered by the Municipal court in Prague, section B, file number 11402

USA

AVAST Software, Inc.
255 Shoreline Drive, Suite 515
Redwood City, CA 94065
USA

Germany

AVAST Software Deutschland GmbH
Otto-Lilienthal-Str.4
88046 Friedrichshafen
Germany
Phone: 00 49 (0)7541-9530490

Austria

AVAST Software Österreich GmbH
Rosenauerstr. 50
4040 Linz
Austria