Transaction in Own Shares

23 September 2008

                               Keller Group plc                                

                           Transaction in Own Shares                           

Keller Group plc (`Keller') announces that on 22 September 2008, it purchased
150,000 of its ordinary shares of 10p each (`Shares') at 741.21 pence per share
through Dresdner Kleinwort. All of these Shares will be held as Treasury
Shares.

This purchase equates to approximately 0.2 per cent of Keller's current issued
share capital excluding Treasury Shares prior to this purchase.

Following the purchase of these Shares, Keller holds 1,791,250 of its Shares in
Treasury and has 64,526,985 Shares in issue excluding Treasury Shares.

Jackie Holman

Company Secretary