£3.6M Acquisition of Allied Mechanical Services

Keller Group PLC
20 March 2000

                KELLER GROUP IN AMS ACQUISITION
                               
Keller Group plc ('Keller'), the global construction services group, announces
that it has acquired Allied Mechanical Services Ltd ('AMS'), a UK mechanical
and electrical services company.

AMS was incorporated in 1985 and has built up a strong customer base in East
Anglia and Greater London. Its activities include the design, installation and
maintenance of heating and ventilation, refrigeration, air-conditioning and
electrical systems for commercial organisations and public bodies.

The acquisition of AMS will strengthen Keller's position within the UK
refurbishment market, which includes not only traditional external renovation
but also mechanical and electrical elements. By being able to offer AMS's
specialist services alongside those offered by Keller's existing
refurbishment business, Makers UK Ltd, Keller will be able to participate in a
broader range of projects.

The initial consideration for the acquisition is £3.6m of which £875,000 will
be discharged in cash and £2.625m by guaranteed loan notes. A further £100,000
will be discharged in the form of 5% cumulative redeemable preference shares
of £1 each issued by AMS Holdings Ltd, a newly created company acting as the
vehicle for the purchase.

In addition, deferred consideration up to a maximum of £1.4m shall be payable
in guaranteed loan notes depending on the level of future profits achieved by
AMS. In the year to 31 March 1999, AMS achieved profit before taxation of
£1.163m on turnover of £5.106m. At 31 March 1999, AMS had net assets of
£0.7m.

Following the acquisition, the vendors will remain as the joint managing
directors of AMS and have committed to stay in the business for the two year
earn-out period. All other personnel will continue in their employment with
AMS.

Commenting on the acquisition, Tom Dobson, Chief Executive of Keller, said:

'In our preliminary results announcement last week, we stated our intention to
make future  bolt-on acquisitions and that we would continue to enhance the
scope of our services to the refurbishment sector. I am pleased to announce
this acquisition so early in 2000 which will strengthen our
position in this fast growing sector.'

For further information, please contact:

Tom Dobson, Chief Executive        Keller Group plc              020 8341 6424
Justin Atkinson, Finance Director  Keller Group plc              020 8341 6424
Stephanie Highett / Nick Lambert   GCI Focus                     020 7398 0800