HOUSTON — Comfort Systems USA Inc., a leading provider of commercial, industrial, and institutional HVAC services, announced it has acquired the ShoffnerKalthoff family of companies, which includes ShoffnerKalthoff Mechanical Electrical Service Inc., Shoffner Mechanical Services Inc., and SKMES Inc., headquartered in Knoxville, Tennessee.

Shoffner is a regional mechanical contractor engaged in a broad range of mechanical contracting projects, HVAC service, and electrical contracting in the Knoxville and surrounding areas. Initially, Shoffner is expected to contribute annualized revenues of approximately $70 million at profitability levels that are generally comparable to those currently experienced by Comfort Systems USA operations. In light of the required amortization expense related to intangibles and other costs associated with the transaction, the acquisition is expected to make a neutral to slightly accretive contribution to earnings per share during the first 12 to 18 months after the acquisition.