Fiber Optic Contractor

Seralex is an underground fiber optic contractor working across North Carolina, Virginia, and the Washington DC metro area. We build, splice, and maintain fiber networks for ISPs, MDU operators, prime contractors, data center clients, and government and military facility operators.

Project scope spans horizontal directional drilling, splicing, structured cabling, and last-mile activation. Maintenance and 24/7 restoration cover the network after handoff. Our Path to Plug approach runs every phase from headend to subscriber under a single schedule.

Horizontal Directional Drilling

Trenchless HDPE conduit installation for fiber routes that need to cross roads, rail corridors, waterways, or congested urban easements without surface disruption.

Seralex HDD crews handle bores from short residential service drops to longer mainline pulls, with same-week mobilization. Bore and fiber pull run under the same contract as splicing, so one crew owns the route from drill start to circuit handoff.

Fiber Splicing

Fusion splicing covers OSP and FTTH builds as well as emergency restoration work, with OTDR-verified testing on every splice.

Seralex splice crews handle singlemode, multimode, and ribbon fiber cable. Equipment staged across Charlotte, Richmond, and Northern Virginia keeps mobilization to a few days for most of the footprint.

Structured Cabling

Cat6 and Cat6A copper plus fiber backbone systems, all built to ANSI/TIA-568 standards for commercial buildings, multi-dwelling residential properties, and data centers. Supporting low voltage scope covers fire alarm circuits and security camera runs alongside WiFi 6 access points.

Inside-plant cabling lines up with the OSP fiber that Seralex has already pulled and spliced, so the run from street to wall outlet stays on one schedule.

Last Mile Fiber

Underground FTTH, FTTB, and FTTP drop installation through to ONT setup and service turn-up for ISPs, prime contractors, and MDU operators.

Buried drops run to single-family units and multi-dwelling buildings, with NID placement at the demarcation point. Pre-connectorized drops plug directly into the NID; non-connectorized drops are fusion spliced on site by the same crew that installed the route. Acceptance testing with OTDR and power meter against the project's loss budget closes out every drop before activation.

Fiber Maintenance and Restoration

Two operations on one contract: 24/7 emergency fiber restoration with SLA-backed response when a route goes down, and scheduled preventive maintenance that catches problems before they become outages.

Emergency response covers OTDR fault location and fusion splicing repair on cuts and faults. Preventive scope covers OTDR baseline tracking and scheduled inspections. Maintenance and restoration are typically combined into a single contract so the same crew handles both. The same crew that builds OTDR baselines during scheduled maintenance visits is the one dispatched when an outage hits, so restoration response starts from a known network state instead of a cold survey.

Service Area

North Carolina

Raleigh-Durham, Charlotte, Wilmington, Fayetteville, Greensboro

South Carolina

Myrtle Beach (Wilmington–Myrtle Beach market)

Virginia

Richmond, Norfolk, Northern Virginia (including Loudoun County)

Washington DC metro

DC and surrounding counties

Frequently Asked Questions

What is OSP construction?

OSP stands for outside plant. OSP construction covers fiber and conduit infrastructure built outside buildings, including underground bores, handholes, splice enclosures, and the cable that connects them. Seralex performs OSP construction as underground work only, executed through horizontal directional drilling and trenching.

What does a fiber optic contractor do?

A fiber optic contractor handles the physical build and ongoing maintenance of fiber networks, distinct from network engineers (who design routes) and ISP technicians (who service end-customer connections). Seralex is a build-and-maintain contractor with no engineering or design service line.

What's the difference between OSP and structured cabling?

OSP is the outside-plant fiber that runs between buildings, typically underground in conduit. Structured cabling is the inside-plant network: Cat6, Cat6A, and fiber backbone runs inside a building from the entrance facility to wall outlets.

Does Seralex handle aerial fiber construction?

No. Seralex does not perform pole work, lashing, strand placement, or aerial cable pulling. All construction is underground.

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