Horizontal Directional Drilling
Trenchless HDD boring for utility crossings with minimal surface disruption, ideal for roads, driveways, landscaped areas, and sensitive zones.
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Precision Underground Solutions for the Gulf Coast
Coast Underground LLC handles directional drilling, trenching, underground utility installation, and manhole rehabilitation for power, water, sewer, and communications infrastructure across Mississippi, Louisiana, and Alabama.
Licensed & Insured
Fully licensed, bonded, and insured for commercial and municipal utility work.
Experienced Crew
Seasoned operators with years of field experience in HDD and utility installation.
Precision Equipment
Modern directional boring rigs and support equipment for clean, accurate bores.
Free Estimates
Contact us for a no-obligation project estimate tailored to your scope of work.
What We Do
Trenchless, conventional, and restorative underground utility work for municipal, commercial, and private infrastructure.
Utility Crossings
Road crossings, river crossings, and highway bores for power, water, sewer, and telecom lines with minimal traffic impact.
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Trenching & Excavation
Conventional open-cut trenching and excavation where direct-bore is not required, completed cleanly and backfilled properly.
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Conduit Installation
PVC and HDPE conduit placement for electric, telecom, fiber, and communications, installed to spec and ready for cable pull.
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Manhole Rehabilitation
Composite liner restoration for deteriorated concrete, brick, and utility structures using ML-72 mortar and corrosion barrier epoxy systems.
See rehabilitation workNow Available
Manhole rehab, liner systems, and horizontal pipe restoration.
Coast Underground now offers Mainstay composite liner restoration for corroded manholes, deteriorated concrete, brick structures, and horizontal pipe surfaces.
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Gulf Coast's Trusted Underground Contractor
Coast Underground LLC is based in Helena, Mississippi, and serves the Gulf Coast region including Mississippi, Louisiana, and Alabama. We work with utilities, municipalities, telecom providers, and private developers on projects of all sizes.
Our crews bring hands-on experience with horizontal directional drilling, giving you the ability to install utilities under roads, rivers, and infrastructure without digging it all up. We take pride in accurate bores, clean job sites, and straightforward communication from start to finish.
Whether it's a single road crossing or a large-scale conduit project, we show up ready to work.
Our Work
Real job sites. Real equipment. Real results across the Gulf Coast.
