Safety First
We follow safe excavation and boring practices on every job, keeping our crew, your property, and the public protected throughout the project.
About Coast Underground LLC
Serving the Gulf Coast with precision underground utility solutions.
Who We Are
Coast Underground LLC is an underground utility contractor based in Helena, Mississippi. We specialize in horizontal directional drilling (HDD), trenching, and excavation for power, water, sewer, and communications infrastructure across the Gulf Coast region.
We serve Mississippi, Louisiana, and Alabama, working alongside utilities, municipalities, telecommunications providers, and private developers. Our experienced crews operate modern HDD equipment capable of handling everything from small residential bores to large commercial crossings.
We're an underground utility company that does directional drilling, trenching, and excavation for power, water, sewer, and communications — give us a call.
Every project is handled with care for accuracy, site cleanliness, and open communication. We take our work seriously and show up ready to deliver.
MS · LA · AL
Gulf Coast Service Area
HDD
Horizontal Directional Drilling
✅
Licensed · Bonded · Insured
How We Work
The principles that guide every job we take on.
Quality Work
Accurate bores, properly backfilled trenches, and clean job sites. We don't cut corners on the work that goes underground and has to last for decades.
Reliable Crews
We show up when we say we will. Our team is experienced, professional, and focused on getting your project done on schedule.
Honest Pricing
Straightforward estimates with no surprises. We explain what the job requires and give you a fair price for the work involved.