Custom Solutions, Dependable Results
The Hillis Group’s construction experience crosses the service lines of pipeline, civil, and restoration allowing us to provide one stop, customizable solutions. We pride ourselves on the ability to quickly adapt to your project needs. No two jobs are the same, that is why we take a unique approach to executing each project.
Natural Gas Pipeline Construction & Field Support
Comprehensive natural gas transmission and distribution construction services, including:
- Mainline pipeline installation
- Distribution system upgrades
- Meter stations and facilities
- Tie-ins and maintenance support
- Pipeline integrity assistance
We also provide right-of-way restoration, environmental remediation, vegetation management, and long-term maintenance programs supporting the full lifecycle of gas utility infrastructure.
Electrical & Substation Infrastructure Construction
Complete substation site development and utility infrastructure construction, including:
- Clearing and grubbing
- Access roads and matting
- Erosion and sediment control
- Excavation and structural fills
- Concrete equipment foundations
- Underground conduit and duct banks
- Drainage systems
- Security fencing
We perform work within existing substations for system upgrades and expansions while maintaining strict safety and site coordination standards.
Civil Site Development & Heavy Construction
Full-service civil construction for energy and utility projects:
- Mass excavation and grading
- Stormwater management systems
- Structural fill placement
- Stone subgrades
- Asphalt paving
- Concrete curbing and flatwork
Utilizing advanced 3D grade control and Trimble modeling technology, we deliver accurate, efficient, production-driven results on complex sites.
Heavy Haul & Commercial Trucking
Dedicated fleet supporting:
- Aggregate hauling
- Structural steel transport
- Utility materials delivery
- Heavy equipment relocation
- Lowboy hauling
We provide internal fleet support and third-party hauling services across Pennsylvania, the Northeast, and Mid-Atlantic markets.
Responsive dispatch. Professional operators. Dependable logistics.
Renewable Energy Infrastructure Support
Construction services for solar and renewable energy projects, including:
- Site preparation and grading
- Underground electrical systems
- Equipment foundations
- Coordinated civil and utility scopes
As the grid evolves, we provide the backbone for construction, supporting the integration of renewable energy.
Site Restoration & Compliance
Complete restoration services for pipeline, utility, and civil projects:
- Fine grading and stabilization
- Topsoil placement
- Hydroseeding and hydro mulching
- Erosion and sediment control
- Full re-vegetation programs
We return sites to compliant, stable, and sustainable conditions to protect communities and ecosystems.