From pristine greenfield sites to complex brownfield redevelopments, LSSE delivers the full range of civil engineering services — site planning, design, permitting, and construction — for commercial, residential, industrial, and institutional projects across all markets.

LSSE serves as a trusted engineering partner to over 170 municipalities across western Pennsylvania and the Tri-State region, providing planning, design, and construction phase services for roadway, stormwater, and infrastructure programs of every scale.

LSSE provides comprehensive water and wastewater facilities engineering, environmental permitting, and source reduction programs — delivering planning, design, and construction phase services for new systems, rehabilitation of existing systems, and regulatory compliance throughout western Pennsylvania and the Tri-State region.

LSSE’s licensed landscape architects collaborate with our civil engineers, surveyors, and GIS specialists to deliver park master plans, athletic facility design, streetscapes, trail systems, and green infrastructure solutions for municipal, commercial, and institutional clients.

LSSE provides a broad spectrum of Geographic Information Services (GIS) services and supports municipalities and authorities in data collection and management, mapping updates, web browser/mapping resources, field mapping services, for various assets maintained by the municipalities and authorities.

LSSE’s full-service survey unit provides accurate, efficient surveying services to municipal, commercial, industrial, residential, and utility clients across Pennsylvania and the Tri-State region, utilizing state-of-the-art VRS equipment, drone technology, and advanced software.

LSSE delivers comprehensive civil engineering and surveying services to coal and non-coal, surface and underground mining operations across western Pennsylvania and the region — from initial permitting and site preparation through reclamation.

LSSE provides comprehensive grant procurement and administration services — identifying funding opportunities, preparing applications, and managing compliance across a wide range of state and federal programs including PENNVEST, CDBG, DCNR, ARC, EPA, USDA RUS, and the State Revolving Fund.