Private equity firm CenterOak Partners-backed Service Champions, a HVAC company, completed the acquisition of Bell Brothers Plumbing Heating and Air, a provider of air conditioning and plumbing services. Financial terms were not disclosed. "The Bell Brothers team is thrilled to be joining Service Champions, an organization that shares our vision and commitment to our customers and employees. Partnering with Service Champions will bring us significant financial resources to improve our training programs, attract talented employees, and expand our service footprint," Kenny Bell, Bell Brothers President.