Public Works & DOT Subcontracting
Curb & gutter, sidewalks, and ADA ramps as a concrete subcontractor on DelDOT and other public works contracts. We work off pay applications, inspector quantity sign-offs, and prime-contractor schedules.
Commercial & Public Works
Concrete Subcontractor for Commercial, DOT & Public Works Projects in Delaware
Tri-County Construction is a licensed, insured concrete and site work subcontractor working with DelDOT prime contractors, heavy civil companies, GCs, and property managers across Delaware — curb & gutter, sidewalks, ADA ramps, parking areas, and site work.
Licensed & Insured (No. 2024712230)Active DelDOT SubcontractorServing All of Delaware
Proud Member Of
Commercial Services
Concrete scopes for DOT primes, heavy civil companies, GCs, property managers, and HOAs.
Commercial Concrete
Parking areas, sidewalks, pads, flatwork, warehouse floors, and loading docks for GCs and property managers, scheduled around live business operations.
Curb & Gutter
DOT-spec and commercial curb & gutter, poured to grade and drainage plan.
Sidewalks & ADA Compliance
Code-compliant commercial and public sidewalks and ADA ramps, inspected and documented to spec.
Site Work for Heavy Civil & GC Partners
Land clearing, excavation, and grading support for prime contractors and GCs who need a concrete/sitework sub they can hand a scope to and trust.
Commercial Snow Removal
Seasonal and per-event snow and ice removal for commercial lots, sidewalks, ADA ramps, and HOAs, with pre-storm anti-icing and 24/7 storm response.
Project Spotlight
Active DelDOT Contract: Subdivision Paving, New Castle County VIII
Tri-County is the concrete subcontractor under prime contractor Allan Myers LP on DelDOT contract T202604908 — curb & gutter, sidewalks, and ADA ramps across 8 locations. We work off inspector-approved quantities, pay-application cycles, and a prime contractor's schedule, the same way we'd run a scope for any GC or heavy civil partner.
- Contract
- T202604908
- Prime Contractor
- Allan Myers LP
- Scope
- Curb & gutter · Sidewalks · ADA ramps
- Locations
- 8 in New Castle County
Who We Work With
A concrete and site work sub for the people running the schedule.
DOT Primes & Heavy Civil Companies
A concrete subcontractor you can hand a scope to — curb & gutter, sidewalks, and ADA ramps run off your schedule, your inspector sign-offs, and your pay-application cycle.
General Contractors
Clear scope, practical scheduling, documentation when needed, and a jobsite plan that reduces disruption.
Property Managers
Clear scope, practical scheduling, documentation when needed, and a jobsite plan that reduces disruption.
Business Owners
Clear scope, practical scheduling, documentation when needed, and a jobsite plan that reduces disruption.
HOAs
Clear scope, practical scheduling, documentation when needed, and a jobsite plan that reduces disruption.
Project Photos
Curb & gutter, sidewalks, and ADA ramps from the DelDOT contract.
Google Reviews
Customers mention communication, scheduling, and finished work.
“We were amazed at the scheduling precision of when concrete was delivered and poured. We liked the daily touching base with Carlos and Carlos Jr., the owners of Tri-County, LLC.”
Linda G.
New Castle, DE | Concrete Project
Google review
“From the initial consultation to receiving the quote and discussing my expectations, the entire process was excellent. Communication was smooth and consistent.”
k Donaldson
Wilmington, DE | Concrete Estimate & Installation
Google review
“Carlos and team did a fantastic job replacing my concrete driveway, sidewalk, and patio. Their work went above and beyond my expectations.”
Brian Kelleher
Newark, DE | Driveway, Sidewalk & Patio
Google review
Commercial FAQs
Questions commercial clients ask first.
Do you work as a subcontractor for DOT prime contractors?
Yes. We're currently the concrete subcontractor on an active DelDOT subdivision paving contract under prime contractor Allan Myers LP, covering curb & gutter, sidewalks, and ADA ramps across multiple locations. We work off inspector-approved quantities and prime-contractor schedules and can provide insurance certificates, licensing, and references.
Do you work on large commercial projects?
Yes, we handle commercial projects of all sizes across Delaware — from single ADA-compliant ramp installations to multi-phase parking lot repaves and warehouse floor pours. Larger jobs get a dedicated project manager and a schedule that works around your business hours.
Are you licensed and insured for commercial work?
Yes. We're fully licensed and insured to operate in Delaware, including general liability and workers compensation coverage required for commercial sites. We provide insurance certificates and any other documentation your property manager or GC needs before work begins.
Do you offer commercial snow removal contracts?
Yes, we offer seasonal snow removal contracts for businesses, parking lots, and HOAs. Pre-storm anti-icing brine application included for commercial accounts, 24/7 storm response, and dedicated equipment so you're never deprioritized after a storm. Per-event pricing also available if seasonal isn't a fit.
How do I get a commercial estimate?
Call, text, or fill out the contact form below. We schedule on-site visits within 1-2 business days for commercial inquiries. The estimate includes scope of work, materials specs, timeline, and a flat price — no surprise add-ons.
Start Here
Get a Free Commercial Estimate
Tell us the property type, concrete scope, timeline, and access constraints. For faster help, call (302) 419-3232.
Call (302) 419-3232