29 July 2025

HOWDEN JOINERY GROUP PLC

("Howdens" or the "Company")

SHARE BUYBACK PROGRAMME

Further to (i) the announcement of Howdens' intention to repurchase up to £100 million of its shares over the next 12 months in its 2024 Full Year Results (the "Programme"); and (ii) the announcement on 13 March 2025 of the first £50 million tranche of the Programme to be executed by Deutsche Numis, the Company announces that it has entered into an arrangement with Barclays Bank PLC, acting through its investment bank ("Barclays") in respect of the second £50 million tranche of the Programme. The arrangement allows Barclays to purchase, together with any other ordinary shares in the Company (the "Shares") purchased on the Company's behalf pursuant to its buyback programme, up to (a) prior to the expiration of the Company's current buyback authority granted by shareholder resolution dated 1 May 2025, 54,974,739 Shares; and (b) following such expiration, the aggregate number of Shares authorised to be purchased by the Company under any subsequent buyback authority granted during the arrangement (which in any event shall be less than 15% of the relevant class of the Company's equity shares at the date of such authority) during the period from the date of this announcement and no later than 25 February 2026. These share purchases will be made by Barclays acting as riskless principal and in accordance with the arrangement and, in the case of any purchases made during closed periods, shall be made independently of and uninfluenced by the Company.

Any share purchases effected pursuant to the arrangement will be subject to the terms of the arrangement with Barclays and in any case will be effected in a manner consistent with both the general authority vested in the Company to repurchase shares and the Financial Conduct Authority's Listing Rules. The aggregate purchase price under this arrangement, together with any other Shares purchased on the Company's behalf pursuant to its buyback programme, will not exceed £100,000,000.

Following the purchase of the Shares, they will either be cancelled or placed into treasury for the sole purpose of meeting future obligations arising from Company employee share option programmes.

Further information on the Company can be found on our website: www.howdenjoinerygroupplc.com

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