OVER A CENTURY OF INNOVATIVE ENGINEERING SOLUTIONS
BASED IN PITTSBURGH, PENNSYLVANIA - PROJECTS NATIONWIDE
OUR PROJECTS
Since 1910, LLI Engineering has been consistently recognized for providing top-quality engineering design services. We specialize in commercial, critical facilities, infrastructure upgrades, green building design, energy conservation modifications, project engineering, engineering estimates, combined heating cooling power plants, and wastewater treatment facilities.
Let’s Work Together
We are always looking for new opportunities and are comfortable working on projects across the country. Please get in touch and one of our project managers will contact you about beginning the proposal process.