Springfield / Connelly


The Waldinger Corporation, Connelly Plumbing and CMI Mechanical joined forces on November 8, 2021.

Connelly Plumbing, Heating and Air has operated as a plumbing and HVAC contractor in the southern Missouri market since 1949. CMI Mechanical Contractors has operated the same market since its inception in 1997. The Waldinger Corporation, founded in 1906, is a full-service mechanical and electrical contractor with multiple locations recognized for mission critical and other high-profile projects. Waldinger is the largest round-the-clock, truck-based service provider delivering maintenance and repair services to clients throughout the Midwest.

The Waldinger Corporation and Connelly are known for installing, repairing, and maintaining plumbing, heating, ventilating and air conditioning systems in residential commercial, institutional, and industrial facilities. With this acquisition, Waldinger now has 1,050 construction tradespeople, plus over 300 service technicians. They have a strong presence in technically demanding service and construction project arenas.

Leaders from each company cite shared values, expanded services to customers, and increased opportunity for employees as key to the acquisition decision. Derek Hileman, Vice President - Waldinger Service Division said, “We are excited to welcome the Connelly teams to Waldinger. We look forward to serving the Springfield market together.” Danny Edwards, President of Connelly and CMI said, “With the additional resources Waldinger brings to the table, we will be able to provide additional opportunities for our staff and our customers long into the future.”

Danny continues to lead and coach the branch as the General Manager. Danny’s children also stayed on; Matt as Service Manager, Brett as Construction Manager and Kayley as Project Engineer. All employees and facilities remain active and part of the expanding operations of The Waldinger Corporation.

1219 East Division Street
Springfield, MO 65803
(417) 866-2262
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