The Riverside Company, a private investor, completed an investment in Done Service Group, a provider of plumbing, heating and cooling services. Financial terms were not disclosed. “Done is a natural fit for the Radiant platform, and we look forward to working with their team. Done is a top-tier brand that provides essential maintenance-focused plumbing and HVAC services, and its high repeat customer rate and strong brand awareness reflect Done’s loyal customer base and commitment to service,” Meranee Phing, Riverside Senior Partner.