Mass & fine grading
Cut/fill, compaction in lifts and subgrade to tolerance for slabs and paving.
Commercial / GC
Sitework for general contractors
Mission complete: On spec. On time.
Grading, utilities and erosion control for GCs and superintendents in your neighborhood and across the Delaware Valley. Submittals that arrive, crews that hit the look-ahead, grade that holds to plan.
Capabilities
What we bring to your site
Site utilities
Storm, sanitary and water installed to spec with authority coordination.
Erosion & sediment control
Installation and maintenance per the approved E&S plan.
Site prep & clearing
Clearing, stripping, construction entrances and pads ready for the next trade.
Drainage structures
Inlets, pipe runs, swales and outlet protection to plan.
Documentation
Submittals, daily notes and photos delivered without chasing.
Related: Grading · Utilities · Site preparation · Drainage
Process
Five-step commercial process
- 1
Bid review
Drawings, specs and geotech reviewed; RFIs raised early.
- 2
Site walk
Access, staging, existing conditions and phasing confirmed.
- 3
Scoped proposal
Line-item scope with clear inclusions, exclusions and assumptions.
- 4
Mobilize to look-ahead
Crews and equipment planned to your three-week schedule.
- 5
Closeout
Grades verified, punch closed, as-built info handed over.
Who we work with
Built for the people running the job
- General contractors
- Custom home builders
- Light commercial owners and developers
- Superintendents and project managers
Why Sentinel
Mission complete: on spec, on time
- Veteran-owned discipline: say what we'll do, then do it.
- One accountable contact from bid to closeout.
- Conflicts flagged early, not at the OAC meeting.
- Grade verified before we call it complete.
FAQ
Commercial questions
+What do you need to price a job?
Drawings, specs, geotech report if available and your schedule. Partial sets are fine for budget numbers.
+Are you insured?
Yes — we're fully insured. Certificates are available on request with your bid.
+What size projects do you take?
Light commercial and custom-builder sitework fits us best right now. Larger packages — ask, and we'll tell you honestly.
+How far do you travel?
Across the Delaware Valley — PA, NJ, DE and MD. Outside that? Ask — we'll be honest.
+Are you a veteran-owned business?
Yes — Sentinel Earthworks is a Service Disabled Veteran Owned Small Business (SDVOSB).
Have a set of plans?
Send drawings and schedule — we'll respond with a scoped number.