Professional Construction Support & Commercial Dive Services

Reliable solutions for commercial marine construction in Fort Lauderdale and surrounding areas.

Welcome to Blackline Marine Group

Blackline Marine Group is a full-service marine dive support construction company based in Fort Lauderdale. We specialize in below the waterline construction, delivering durable, high-performance solutions for commercial, and marinas throughout South Florida.

Our expertise includes underwater inspections, seawall construction support, dredging services, subsea demolition and salvage. With a skilled team and specialized marine equipment, we handle complex waterfront projects with precision, safety, and efficiency.

At Blackline Marine Group, we combine craftsmanship, engineering knowledge, and hands-on marine experience to protect shorelines, strengthen waterfront infrastructure, and build lasting foundations from the seabed up.

Our Core Services

Commercial diving services with surface-supplied capabilities for inspection, reporting and underwater execution.

Commerical

Our commercial marine construction services support marinas, waterfront facilities, and multi-slip developments with structural seawalls, dock systems, and heavy-duty piling solutions.

Commercial Dive Services

Led by ADCI-certified professionals, our commercial diving team performs underwater construction, structural repairs, inspections, maintenance, and recovery operations with strict adherence to industry safety standards.

Maintenance

Our maintenance division specializes in marine growth mitigation, piling protection systems, and structural seawall repairs — preserving the integrity and longevity of your shoreline investment.

Why Choose Blackline Marine Group?

At Blackline Marine Group, we offer several key advantages that set us apart from other marine service providers.

Reliability

Our team delivers dependable marine construction and diving services with consistent communication, on-time execution, and workmanship you can trust.

Tailored Solutions

Every waterfront property is different. We design and execute customized marine construction solutions built specifically for your site conditions and long-term goals.

Comprehensive Reporting

From site assessments to final inspections, our reporting process delivers clarity, accountability, and complete project transparency.

Our Process

How We Work

Our process is simple, clear, and designed to deliver the best results for your vessel or marina. Here’s what you can expect when you work with Blackline Marine Group.

Consultation

We begin with a detailed consultation to understand your specific needs and requirements.

Inspection

Our team performs a thorough inspection of your vessel, dock, or seawall to assess the scope of work.

Permitting & Compliance

We assist with regulatory requirements and ensure all work meets local and environmental standard

Execution

We carry out the necessary services, using the latest techniques and eco-friendly methods.

Reporting

You receive a comprehensive report with photos, maintenance logs, and recommendations.

Follow-Up

We offer ongoing support with maintenance scheduling and future inspections.

Get Started with Blackline Marine Group

Marine Construction & Underwater Services Delivering expert seawall construction, dock installation, piling protection, and commercial diving, keeping your waterfront structure secure and built to last year round.

At Blackline Marine Group, we offer hassle-free  services with transparent pricing. 

Blog

Read Our News and Articles

How Preventative Yacht Maintenance Reduces Emergency Repairs

How Preventative Yacht Maintenance Reduces Emergency Repairs

Emergency repairs on yachts rarely occur without warning. In most cases, they are the result of…

Hull Cleaning vs Bottom Painting in Fort Lauderdale

Hull Cleaning vs Bottom Painting in Fort Lauderdale

Boat owners in South Florida often face the same decision when marine growth becomes noticeable. Is…

Florida Marine Growth and Why Maintenance Is Not Optional

Florida Marine Growth and Why Maintenance Is Not Optional

Marine growth is not an occasional inconvenience in Florida. It is a constant operating condition that…

Scroll to Top