Acquisitions	12 Months Ended
Dec. 31, 2013
Acquisitions
Acquisitions	4. Acquisitions *Acquisition of EAS* On November 2, 2011, we acquired a 60% majority interest in Environmental Air Systems, LLC ("EAS"). EAS is a regional mechanical contractor with principal offices in Greensboro and Raleigh, North Carolina. EAS engages in a broad range of mechanical contracting projects, HVAC service and controls, and sophisticated prefabrication of mechanical systems, in North Carolina, South Carolina and throughout the Atlantic region. The acquisition date fair value of consideration transferred was $30.4 million, of which $15.7 million was allocated to goodwill. *Other Acquisitions* No acquisitions were completed in 2013. We completed various acquisitions from 2011 to 2012, which were not material, individually or in the aggregate, and were "tucked-in" with existing operations. The results of operations of acquisitions are included in our consolidated financial statements from their respective acquisition dates. Additional contingent purchase price ("earn-out") has been or will be paid if certain acquisitions achieve predetermined profitability targets. The total purchase price for these acquisitions, including earn-outs, was $14.2 million in 2012 and $2.9 million in 2011.

Acquisitions

12 Months Ended

Dec. 31, 2013

4. Acquisitions

Acquisition of EAS

On November 2, 2011, we acquired a 60% majority interest in Environmental Air Systems, LLC ("EAS"). EAS is a regional mechanical contractor with principal offices in Greensboro and Raleigh, North Carolina. EAS engages in a broad range of mechanical contracting projects, HVAC service and controls, and sophisticated prefabrication of mechanical systems, in North Carolina, South Carolina and throughout the Atlantic region. The acquisition date fair value of consideration transferred was $30.4 million, of which $15.7 million was allocated to goodwill.

Other Acquisitions

No acquisitions were completed in 2013. We completed various acquisitions from 2011 to 2012, which were not material, individually or in the aggregate, and were "tucked-in" with existing operations. The results of operations of acquisitions are included in our consolidated financial statements from their respective acquisition dates. Additional contingent purchase price ("earn-out") has been or will be paid if certain acquisitions achieve predetermined profitability targets. The total purchase price for these acquisitions, including earn-outs, was $14.2 million in 2012 and $2.9 million in 2011.