The Sterling Group, an operationally focused middle market private equity firm, has acquired L&S Mechanical, a tri-trade provider of plumbing, HVAC and electrical installation services in the Texas residential market.

Founded in 1985, L&S is headquartered in Richardson, Texas, and serves large production homebuilders in Dallas-Fort Worth, Houston, San Antonio, and Austin through its five production warehouses.

“Thomas Mozjesik and his team pioneered the tri-trade model in Texas,” said Greg Elliott, partner at The Sterling Group. “We are excited to partner with the team to continue to expand that model in both Texas and other states.”

“Sterling’s ‘roll up your sleeves’ approach combined with their experience and success in building products are what make them a great fit for L&S,” said Thomas Mozjesik, president of L&S Mechanical. “With Sterling as our partner, we will accelerate our growth plans.”

Sterling has experience in the building products distribution and services industries, having previously partnered with entrepreneur owners to build Roofing Supply Group, Construction Supply Group, Artisan Design Group, and Fencing Supply Group.