RO Unlimited underground utility excavation
Underground Utilities Division

The Best Work
Gets Buried.

Water mains. Sewer taps. Storm drainage. Tier 2 septic. Nobody sees it when it's done — but every building on the site stands on it. Run out of our Easley shop, licensed in South Carolina, North Carolina, and Georgia, and photographed before backfill.

3
State Licenses Held
25+
Years In The Dirt
3
States Served
100%
Self-Performed
Licensed & Self-Performed

Most Contractors
Can't Legally Touch This

Tapping a live water main. Boring under a road that can't be cut. Running ductile iron beneath a parking lot. This work takes state license classifications most general contractors don't hold — so it gets subbed out, and schedules slip.

We hold seven of them, in all three states we work — South Carolina, North Carolina, and Georgia — and we run our own crews and equipment out of Easley. When RO Unlimited does your sitework, the underground package stays in-house — one contractor controlling the critical path from first cut to final tap.

RO Unlimited Utility Division seal — GC License CLG 127704, Onsite Wastewater License OSWW10837, Mechanical License CLM119115
Water & Sewer
State Licensed · Fully Insured
Boring & Tunneling
State Licensed · Fully Insured
Highway — Roads & Bridges
State Licensed · Fully Insured
Grading
State Licensed · Fully Insured
General Contractor — Building
State Licensed · Fully Insured
Specialty Concrete
State Licensed · Fully Insured
Specialty Masonry
State Licensed · Fully Insured

License documentation available on request for prequalification and lender packages. Download our capability statement (PDF).

How It Goes In

Trench To Backfill

01

Locate & Design

Utility locates, soil review, and a run plan that matches the civil drawings — before a bucket touches dirt.

02

Cut & Install

Open the trench, bed the pipe, set the structures. Our crews, our iron — no waiting on a sub.

03

Test & Inspect

Pressure tests, mandrel and vacuum tests, municipal inspections — documented and passed before anything closes.

04

Backfill & Document

Every run photographed before backfill. You get proof of what’s under your site — forever.

Before It Disappears

Shot Before Backfill

Underground work only gets seen once. We photograph every run, tap, and tank before it's covered — proof of what's under your site.

Straight Answers

Developer FAQ

Yes — that’s exactly what our water & sewer license covers. We perform hot taps on live mains with tapping sleeves and valves, so the surrounding system stays in service while your property gets connected.

No. Underground utilities are self-performed — our crews, our equipment, our licenses. That’s the point: when the same contractor controls the sitework and the underground package, the critical path doesn’t slip waiting on someone else’s schedule.

South Carolina is specific about this. A Tier 1 installer may install gravity-fed residential systems only, and is not authorized to conduct repairs on existing systems at all. Tier 2 adds pumps, grease traps, curtain drains, elevated and mounded systems, and every commercial, large, and community onsite wastewater system — plus repairs. That is the South Carolina license line commercial work sits on, and most residential installers don’t hold it. Tier 1, 2, and 3 are a South Carolina classification, so on a job across the line we work under that state’s onsite program instead — we hold licensing in all three.

We run out of Easley, so the Greenville area is home ground and most weeks our iron never leaves it. Past that we work the whole tri-state — upstate South Carolina, western North Carolina, and northeast Georgia — and we are licensed in all three, which matters because the permitting path changes the moment you cross a line. For a job worth mobilizing for, distance is a scheduling conversation, not a no.

That’s our model. We clear it, grade it, pipe it, and build on it — site development, underground utilities, and vertical construction under one contract with one accountable contractor.

Put Your Utilities
In Licensed Hands

Send the civil drawings, or just tell us what the site needs. We'll scope the underground package — and the dirt work around it — with one number and one accountable contractor.