Transaction in Own Shares

CRH PLC
18 January 2008

18th January 2008


SHARE REPURCHASE PROGRAMME



CRH plc announces that on 17th January 2008, UBS Limited purchased, on behalf of
the Company, 50,591 Ordinary Shares of €0.32 each in CRH plc at prices between
€23.00 and €23.634 per Ordinary Share.  The purchased shares will be held as
Treasury Shares.

Following the above transaction, CRH plc holds 740,151 Ordinary Shares in
Treasury.

The number of Ordinary Shares in issue (excluding Treasury Shares) is
546,487,043.







Contact

Angela Malone
Company Secretary
Tel: [phone]





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