May Gurney shareholders will vote on whether to pledge their futures to Kier in a little over four weeks from today.
The date for the general meeting has been confirmed for 13 June 2013, starting at 10:15am, at the offices of Eversheds LLP, in London.
The acquisition represents a value of 315 pence per May Gurney share, or £221m in aggregate.
The move trumped that of Costain, which announced a month earlier that it had reached agreement on a merger that valued May Gurney shares at 253.22 pence, valuing the entire firm at £178m.
With the Kier deal, for each May Gurney share, shareholders will receive 0.2 in new Kier ordinary shares and 50 pence in cash.
They will also get a second interim dividend of 5.6 pence per share, which is conditional on the acquisition.
There will also be a “mix and match facility”, so May Gurney shareholders can opt to vary the proportions of cash and new Kier shares.
The deal will see Kier combine its £445m services business with May Gurney to create a £1.1bn turnover services arm.