Leonard Green & Partners, a private equity firm, to acquire The Wrench from Investcorp, investment management company. Financial terms were not disclosed. The Wrench Group is a leading provider of residential maintenance and repair services with specialization in heating, ventilation and air conditioning (HVAC), electrical, and plumbing. "Investcorp has been a great partner and given us valuable insights that have helped grow our business significantly. We’ve greatly enjoyed the experience working with their dedicated team to expand our services and national footprint and are excited to continue to execute our strategic growth plans with LGP." Ken Haines, The Wrench CEO.