TopBuild, an installer and distributor of insulation products, agreed to acquire American Building Systems, a provider of insulation services allowing its clients to save energy and lower heating and cooling costs. Financial terms were not disclosed. “This is a great opportunity for TopBuild to enhance its presence in many high growth markets. ABS will bring a strong customer base, experienced sales force and 500 highly trained installers to our operations. Wayne Sullivan, ABS’ current owner, has done a great job building the business and developing a talented team. This will be a great addition to our TopBuild family of companies," Robert Buck, TopBuild President and CEO.