Holding(s) in Company

Wolseley PLC
17 May 2007

NOTIFICATION OF MAJOR INTERESTS IN SHARES

1) Name of company: Wolseley plc

2) Name of shareholder having a major interest:

Aviva plc and its subsidiaries

3) Please state whether notification indicates that it is in respect of holding
of the shareholder named in 2 above or in respect of a non- beneficial interest
or in the case of an individual holder if it is a holding of that person's
spouse or children under the age of 18:

In respect of the above holder.

4) Name of registered holder(s) and, if more than one holder, the number of
shares held by each of them:

          5,142,806   BNY Norwich Union Nominees Limited
              8,800   BT Globenet Nominees Limited
         10,645,501   Chase GA Group Nominees Limited
            805,568   Chase Nominees Limited
          3,783,798   CUIM Nominee Limited

5) Number of shares/amount of stock acquired:

Not disclosed

6) Percentage of issued class:

Not disclosed

7) Number of shares/amount of stock disposed:

n/a

8) Percentage of issued class:

n/a

9) Class of security:

Ordinary shares of 25p each

10) Date of transaction:

15 May 2007

11) Date company informed:

17 May 2007

12) Total holding following this notification:

20,423,565

13) Total percentage holding of issued class following this notification:

3.1%

14) Any additional information:


15) Name of contact and telephone number for queries:

Mark J. White - 0118 929 8700

16) Name and signature of authorised company official responsible for making
this notification:

Mark J White, Company Secretary

Date of notification:

17 May 2007


END




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