Service Champions, a subsidiary of CenterOak Partners, completed its acquisition of ASI Hastings, a provider of residential HVAC and plumbing services. Financial terms were not disclosed. “Service Champions has been actively expanding over the last 18 months to build scale and better serve customers in key regions throughout California. The ASI transaction comes on the heels of our recent expansion into the East Bay and we now have an exceptional portfolio of brands that maintain leading market positions in a number of large metropolitan areas across the state," Lucas Cutler, CenterOak Managing Partner.