Mass grading
Cut/fill balancing and compaction in lifts, coordinated with your testing agency.
Services
Mission complete: On spec. On time.
Mass and fine grading, utilities and erosion control for GCs and superintendents in your neighborhood and across the Delaware Valley — submittals that arrive and crews that hit the look-ahead.

Capabilities
Cut/fill balancing and compaction in lifts, coordinated with your testing agency.
Subgrade for slabs, paving and curbs held to plan tolerances.
Storm, sanitary and water mains/laterals installed to spec.
E&S installation and maintenance per the approved plan.
Crews and equipment planned to your three-week look-ahead.
Product data, daily notes and as-built info delivered when you need them.
Process
Tell us the project, the property and the timing. We'll say plainly whether it's a fit.
We walk the site, follow the water, check access and note anything that needs review.
A written scope built for your project — inclusions, exclusions and assumptions spelled out.
Utilities marked, protection set, then the work — with check-ins, not surprises.
Grade and drainage verified with you, punch items closed, site left clean.
What's included
Honest exclusions
Why Sentinel Earthworks
Discipline, integrity and follow-through — the standard we brought home from service. Service Disabled Veteran Owned Small Business.
Someone is posted and paying attention: elevations checked, protected areas flagged, conditions documented.
Homeowners get plain answers and a protected property. GCs get submittals, look-aheads and grade that holds to plan.
FAQ
We plan to your look-ahead and flag conflicts early — no surprises at the OAC meeting.
Drawings, specs, geotech report if available, and your schedule. Send what you have.
We work across the Delaware Valley — Pennsylvania, New Jersey, Delaware and Maryland. Outside that? Ask — we'll tell you honestly whether it makes sense.
It depends on the job and the municipality. We'll tell you during scoping what's needed and who typically pulls it; engineered or permitted work is coordinated with your engineer or GC.
Send drawings and the schedule — we'll respond with a scoped number.