Comprehensive Commercial Site Development

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Wilhelm Site Services is a full-service site contractor delivering complete, turnkey commercial development solutions. Rather than piecing together multiple contractors, we coordinate every phase of your project—from initial demolition through final site restoration—under one roof. Our integrated approach means seamless execution, clear accountability, and efficient project delivery for commercial builds, solar installations, and large-scale site development.​

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Our Approach

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We handle end-to-end site development, managing everything from demolition and excavation to utilities, paving, and final site restoration. Our comprehensive service model eliminates coordination headaches and keeps your project on schedule.

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Complete Site Services

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1. Site Demolition & Selective Demo: Full site demolition, selective/partial demo, concrete demolition, structure and foundation removal, and debris removal and hauling.
    

2. Site Excavation & Earthwork: ite grading and dirt work, cut and fill balancing, foundation and footings excavation, pad preparation for buildings and equipment, fill import/export, and access road construction.
    

3. Utilities & Trenching: Sanitary sewer, storm sewer, water main, and force main installation. Conduits and electrical utility trenching, cleanouts, manholes, tie-ins, and trench backfill with proper compaction.
    

4. Paving & Concrete: Parking lot base preparation, GABC, asphalt paving and striping. Concrete sidewalks, curbs, aprons, and pads. Loading zones, dumpster pads, and ADA-compliant installations.
    

5. Drainage & Stormwater Management: Complete stormwater management systems including headwalls, inlets, underground retention basins, retention ponds, swales, catch basins, downspout drains, and drainage piping.
    

6. Erosion & Sediment Control: Silt fence installation, construction entrances, erosion matting, and concrete washouts to maintain compliance throughout your project.
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7. Land Clearing & Tree Work: Lot clearing, grubbing, stump and tree removal, large-scale mowing, and vegetation management for solar and large-site projects.
    

8. Final Site Restoration & Landscaping Prep: Topsoil placement, seeding, sod preparation, site cleanup, punchlist finishes, landscape grade and soil prep, and large landscape buffer installation.

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Why Wilhelm for Commercial Work

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• Local Expertise - Deep knowledge of Delaware soils and regulatory requirements
   

• Turnkey Development - Complete site services from demolition through final grading
   

• Certified & Insured - Full safety and code compliance
   

• Transparent Communication - Clear updates and schedule commitment
   

• Proven Portfolio - Successful commercial and solar/site-scale projects including McDonald's locations, solar fields, and commercial developments across Delaware and Maryland

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How We Work​

1. Site Visit & Survey - Comprehensive assessment of your project needs

2. Design/Layout Coordination - Collaborative planning with your team

3. Permitting & Compliance - Complete regulatory navigation

4. Construction Execution - Efficient, coordinated implementation

5. Final Inspection & Turnover - Quality assurance and project completion

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Service Area
We serve Sussex, Kent, and New Castle counties in Delaware, and extend into nearby Maryland for commercial projects.

Recent Projects

• McDonald's locations in Milton, Middletown (multiple sites) - Full site work packages

• Solar field developments in Still Pond, MD and Dagsboro, DE - Complete site packages

• Commercial restaurant and retail developments throughout the region