Marine Construction & Civil Works
Marine construction specialists delivering complex waterfront infrastructure
Wells Marine delivers professional marine construction and civil works for government agencies, councils, ports, marinas, commercial developers and civil contractors throughout Sydney, the east coast and inland New South Wales.
With decades of experience in commercial diving, waterfront construction and marine engineering support, we safely complete projects in challenging tidal, coastal and inland water environments. Our team combines commercial diving expertise with specialist marine plant, crane barges and construction equipment to deliver practical, efficient and cost-effective solutions.
Whether constructing new marine infrastructure, repairing ageing assets or supporting large civil projects, Wells Marine provides the skilled personnel and equipment needed to complete projects safely, efficiently and to the highest industry standards.
Contact Wells Marine to discuss your next marine construction or waterfront civil project.
Comprehensive marine construction services
Marine construction requires specialist knowledge that goes beyond traditional civil contracting. Working over and under water presents unique challenges, including tides, currents, weather, limited access, environmental protection and diver safety.
Wells Marine has the experience, equipment and project management capability to undertake a broad range of marine construction projects from initial site establishment through to final completion.
Our services include:
- Wharf construction
- Jetty construction
- Pontoon installation
- Boat ramp construction
- Bridge construction support
- Marine piling
- Seawall construction
- Retaining wall construction
- Fender system installation
- Floating pontoon systems
- Underwater concrete works
- Structural steel installation
- Marine demolition
- Marine asset remediation
- Commercial diving support
- Inspection and maintenance
Wharf and jetty construction
Wharves and jetties are critical assets for ports, marinas, councils and commercial waterfront facilities.
Wells Marine constructs, upgrades and repairs timber, steel and concrete wharf structures for a wide range of applications.
Our team can deliver:
- New wharf construction
- Jetty extensions
- Deck replacements
- Structural repairs
- Fender installation
- Berthing infrastructure
- Pile replacement
- Access platforms
- Gangways
- Marine utilities installation
Every project is designed around the operational requirements of the asset while minimising disruption to users and surrounding marine environments.
Marine piling
Piling forms the foundation of most marine structures.
Wells Marine installs and repairs steel, concrete and timber piles used for:
- Wharves
- Bridges
- Jetties
- Marinas
- Boardwalks
- Boat ramps
- Dolphins
- Mooring structures
- Industrial waterfront facilities
Our experienced crews can undertake pile installation, pile repairs, pile cutting, pile extraction and structural remediation.
Seawall construction and repairs
Seawalls protect waterfront assets from erosion, tidal movement and storm damage.
Wells Marine constructs and repairs seawalls using appropriate construction techniques suited to each site.
Services include:
- New seawalls
- Seawall reconstruction
- Rock revetments
- Sheet piling
- Concrete seawalls
- Structural repairs
- Scour protection
- Erosion remediation
Every project considers long-term durability, environmental compliance and hydraulic performance.
Bridge construction support
Marine bridges often require specialised access that conventional civil contractors cannot provide.
Wells Marine supports bridge construction and maintenance projects by providing:
- Commercial diving
- Underwater inspections
- Temporary works
- Pile installation
- Structural steel installation
- Concrete placement
- Cofferdam support
- Underwater demolition
- Cathodic protection installation
- Maintenance works
Our crews regularly work alongside major civil contractors delivering bridge upgrades and infrastructure projects.
Pontoon and marina construction
Marinas require precision construction to ensure safe vessel access and long-term performance.
Wells Marine installs:
- Floating pontoons
- Marina berths
- Walkways
- Finger pontoons
- Mooring systems
- Gangways
- Service pedestals
- Structural framing
- Fender systems
Our team can also undertake marina refurbishment, maintenance and structural upgrades.
Boat ramps and waterfront access
Public and private boat ramps must withstand heavy traffic, changing tides and harsh marine environments.
Wells Marine constructs and repairs:
- Concrete boat ramps
- Launch facilities
- Floating access systems
- Boarding pontoons
- Slipways
- Access stairs
- Pedestrian platforms
Commercial diving support for civil projects
Commercial divers play a critical role in many marine construction projects.
Wells Marine’s commercial diving services support:
- Underwater inspections
- Structural surveys
- Construction verification
- Underwater welding
- Thermal cutting
- Concrete inspections
- Formwork installation
- Debris removal
- Salvage operations
- Maintenance works
By integrating commercial diving into construction projects, we reduce delays and improve project efficiency.
Marine demolition
Marine demolition requires careful planning to protect nearby infrastructure and the surrounding environment.
Wells Marine undertakes:
- Wharf demolition
- Jetty removal
- Pontoon removal
- Pile removal
- Underwater cutting
- Structural dismantling
- Debris recovery
- Site clearance
Materials are removed in a controlled manner to minimise environmental impact and maintain safe working conditions.
Marine asset maintenance
Regular maintenance extends the life of marine infrastructure and reduces long-term repair costs.
Our maintenance services include:
- Structural inspections
- Corrosion repairs
- Protective coatings
- Cathodic protection
- Concrete repairs
- Fender replacement
- Pile repairs
- Timber replacement
- Marine growth removal
- Preventative maintenance programs
Our marine construction process
1. Initial consultation
We discuss the project objectives, existing infrastructure, environmental conditions and construction requirements.
2. Site investigation
Our team undertakes inspections, surveys and underwater assessments to understand the site and identify potential construction challenges.
3. Project planning
Construction methodologies, marine logistics, temporary works, lifting requirements and environmental controls are developed to suit the project.
4. Construction
Using specialist marine equipment, commercial divers and experienced construction crews, works are completed safely and efficiently.
5. Quality assurance
Completed works are inspected throughout construction to ensure compliance with project specifications and quality standards.
6. Project completion
Following final inspections, documentation and client handover, the completed infrastructure is ready for operation.
Why choose Wells Marine?
Specialist marine contractor
Marine construction requires specialised equipment and highly trained personnel. Wells Marine focuses exclusively on marine and underwater construction projects.
Experienced commercial divers
Our certified commercial divers work alongside construction crews to complete underwater activities safely and efficiently.
Purpose-built marine equipment
We operate specialist vessels, crane barges and marine construction equipment suitable for a wide range of waterfront projects.
Integrated project delivery
From underwater inspections through to construction, repairs and maintenance, Wells Marine provides complete marine construction solutions.
Safety-focused operations
Safety is at the centre of every project. We implement comprehensive risk management systems, project-specific work methods and environmental controls to deliver safe outcomes for our clients and our team.
Industries we work with
Wells Marine provides marine construction services for:
- State and local government
- Civil construction companies
- Marine contractors
- Port authorities
- Marinas
- Waterfront developers
- Industrial facilities
- Utilities
- Defence projects
- Transport infrastructure
- Mining operations
- Private asset owners
Marine construction enquiries
To help us assess your project, please provide:
- Project location
- Type of structure
- Scope of works
- Drawings or engineering plans
- Site photographs
- Water depth
- Access constraints
- Project timeframe
- Environmental considerations
- Tender documentation (if applicable)
Our team will review your requirements and recommend the most practical construction methodology.
Contact Wells Marine today to discuss your marine construction and civil works project.
- 0421 879 161
- [email protected]
-
4/13 James Craig Road
Rozelle, NSW, 2039
- Commercial Diving Services
- Marine Salvage & Sunken Vessel Recovery
- Underwater Welding & Thermal Cutting
- Marine Construction & Civil Works
- Wharf, Marina & Waterfront Construction
- Sea Wall Construction & Repairs
- Slipway Construction & Maintenance
- Underwater Pile & Pylon Restoration
- Shark Netting & Exclusion Enclosures
- Infrastructure & Bridge Inspection
- In-Water Ship & NDT Hull Survey
- Hull Cleaning & Ship Husbandry
- Dam, Reservoir & Water Tank Inspection
- High-Pressure Water Blasting & Defouling