Howden Joinery Group PlcLSE: HWDN

Change of Registrar

· Issued by Howden Joinery Group Plc

15 December 2025

HOWDEN JOINERY GROUP PLC

("Howdens" or the "Company")

CHANGE OF REGISTRAR

Howdens announces the transfer of its share register from Equiniti to Computershare Investor Services PLC (Computershare), effective today.

A notification will be sent to shareholders advising of this change along with details of how to register for online access to their shareholdings.

Contact details for Computershare are as follows:

Computershare Investor Services PLC

The Pavilions

Bridgwater Road

Bristol

BS99 6ZZ

United Kingdom

+44(0)370 889 0144

www.investorcentre.co.uk

Further information and FAQs are also available on www.howdenjoinerygroupplc.com/FAQs/index.asp.

Enquiries:

Forbes McNaughton, Company Secretary            +44(0)207 535 1162

LEI: 213800KC1LJOJTY3JP45