Accepting Enquiries — UK & Worldwide

Specialist
Commercial Diving
Contractor.

HSE Notified Diving Contractor based in Southampton. Specialists in ship husbandry, underwater hull inspection, civil infrastructure diving, salvage and subsea engineering. UK-wide and worldwide.

Request a Quote Our Sectors
HSE Notified Diving Contractor
ACOP L104 Surface Supply
ROV Survey Capability
24/7 Emergency Response
Co. No. 16251059
Specialist Commercial Divers

Professionals Who
Know the Job.

Delta Diving Subsea Services is a specialist commercial diving contractor built from the ground up for the commercial sector. Every project is properly planned, safely executed and fully documented from start to finish.

Our clients are ship managers, port operators, civil engineers and main contractors. They need a diving team that understands the pressures they’re under — operationally, commercially and on safety. That’s exactly what we deliver.

Discuss a Project Our Safety Standards
HSE
Notified Contractor
All operations under ACOP L104 surface supply diving
24/7
Emergency
Round-the-clock callout for urgent vessel and subsea work
ROV
Survey Capability
Deployed where conditions would not safely support a diver
UK+
Worldwide
South Coast primary — worldwide on request
Sectors We Serve

Three Core Sectors.
One Professional Team.

Commercial shipping, civil infrastructure and marine salvage. Specialist work, done properly, with the documentation to prove it.

Primary Sector — 60% of our work

Commercial Shipping & Husbandry

In-water services for vessels of all types — from emergency prop clearances to full UWILD class inspections. Fast mobilisation, right documentation, no dry dock.

UWILD In-Water Bottom Surveys
Propeller & Running Gear
Hull Inspection & NDT
Underwater Cutting & Welding
Civil Infrastructure

Civil & Infrastructure Inspection

Underwater inspection of bridges, quay walls, jetties, lock gates, culverts and coastal structures. Written reports with HD video.

Bridge & Pier Inspection
Quay Wall & Harbour Surveys
Lock Gates & Water Structures
Coastal & Tidal Assets
Marine Salvage

Salvage & Marine Recovery

Marine salvage, casualty diving, sunken asset assessment and recovery. From initial assessment through lifting plans to completion reporting.

Marine Salvage Operations
Casualty Diving & Assessment
Sunken Asset Recovery
Search & Recovery
Running Gear
Propeller & Rudder Inspection
Ship Husbandry
In-Water Hull Survey
Salvage
Marine Recovery Operations
Deployment
Dive Support & Vessel Operations
Full Service Capability

Everything Below
the Waterline.

From same-day vessel emergencies to planned inspection programmes — all work planned to HSE standards, fully documented and reported to client and regulatory requirements.

Shipping — 01

Ship Husbandry & UWILD

UWILD in-water bottom surveys, cathodic protection, hull coating, anode and propeller examination. Full reports for LR and DNV-GL. Keeps vessels trading without dry dock.

UWILD SurveyIn-Water Bottom SurveyLR / DNV-GL
Shipping — 02

Propeller & Running Gear

Emergency rope clearance, prop polishing, shaft inspection, sea chest clearance and anode replacement — all in-water, without dry dock. Fast mobilisation, same-day South Coast response.

Propeller ClearanceSea ChestEmergency
Engineering — 03

Subsea Engineering & NDT

Ultrasonic thickness gauging, magnetic particle inspection, corrosion mapping and condition assessment. Detailed written reports formatted to recognised classification standards.

UT GaugingMPICorrosion Survey
Engineering — 04

Underwater Cutting & Welding

Wet welding and thermal arc cutting for structural repair, emergency patch works and pile trimming. Full pre-dive planning and post-work documentation on every job.

Wet WeldingArc CuttingStructural Repair
Civil — 05

Civil & Infrastructure Inspection

Quay walls, jetties, bridges, culverts, lock gates and coastal structures. HD video and photo evidence with written condition reports for engineers, asset owners and authorities.

Bridge InspectionQuay Wall SurveyScour Assessment
Survey — 06

ROV Survey

Deployed where conditions would not safely support a diver — zero visibility, fast currents, confined spaces or hazardous environments. Same professional inspection, same documented output.

ROV SurveyZero VisibilityHazardous Environments
Specialist — 07

UXO & Debris Clearance

UXO identification and route clearance for port development, cable lay and dredging. Operated with licensed EOD specialists, full project management to clearance certificate.

UXO SurveyEOD PartnershipClearance
Marine — 08

Salvage & Recovery

Marine salvage, casualty diving and asset recovery. Full project management from casualty assessment through lifting plans, recovery and completion reporting.

Marine SalvageCasualty DivingRecovery
Other Requirements

Something Else?

We have broad commercial diving capability. If your requirement isn’t listed, talk to us directly.

Get in touch →

ROV Survey — When Conditions Rule Out a Diver

Zero visibility, fast tidal streams, confined spaces, deep foundations — our ROV is deployed where it would not be safe to send a diver. The same professional inspection, the same documented output, to the same high standard.

ROV Capability
Safety & Compliance

Safety is Not an
Add-On. It’s How
We Work.

Our operation is built around one principle — everyone goes home. Safety runs through every level of our team, on every job. We hold NEBOSH General Certificate qualifications as a minimum standard across our safety team.

HSE Notified Diving Contractor
Registered under the Diving at Work Regulations 1997. All operations conducted under ACOP L104 for surface supply commercial diving.
Active
Safety Leadership — NEBOSH as a Minimum
All personnel responsible for safety hold NEBOSH General Certificate as a minimum. Led by people who know what they’re doing — in the water and on deck.
Qualified
ISO 9001 & ISO 45001
Quality and safety management systems in progress, building the framework for framework contracts and competitive tenders.
In Progress
Class Society Accreditation
Working towards class approval with Lloyd’s Register and DNV-GL for in-water vessel surveys and commercial diving operations.
In Progress
Every diver goes home. That is the only outcome we plan for.
Pre-dive risk assessment and RAMS prepared for every job — specific to the task, site and conditions, every time
Surface supply diving throughout — umbilical-fed, continuously supervised, compliant with ACOP L104
Standby diver in standby mode and ready throughout every diving operation, as required under ACOP L104
Emergency procedures confirmed and verbally briefed to the full team before the first dive of every operation
Full dive log, bell log and decompression records maintained on every project
All diver and supervisor HSE qualifications current, verified and on record before any mobilisation
Post-project documentation and dive records provided to clients on request, without exception
Coverage

Southampton Based.
UK-Wide. Worldwide on Request.

Rapid response to all South Coast ports. UK-wide planned and emergency mobilisation. International deployment available.

Same
Day
South Coast

Southampton, Portsmouth, Solent, Isle of Wight & all Hampshire and Dorset ports.

UK
UK-Wide

All major UK commercial ports — London, Bristol, Liverpool, Humber and beyond.

WW
International

Worldwide mobilisation on request. Contact us to discuss timescales and logistics.

24/7
Emergency

Round-the-clock callout. +44 7400 250 472

Why Choose Us

The Right People
for the Job.

Shipping Specialists First

Sixty percent of what we do is commercial shipping. We understand the pressures of vessel operators and ship managers — fast response, right paperwork, no drama.

Safety Runs Deep

HSE Notified contractor. NEBOSH-qualified safety personnel as a minimum. Standby diver in standby mode at all times. This is how we work on every job, not just the big ones.

Rapid Response

Van-mounted dive spread, fast South Coast mobilisation. 24/7 for genuine emergencies. Call us and you’ll get a straight answer from someone who can help.

ROV When Divers Can’t

Our ROV extends capability into zero visibility, fast currents and confined spaces. When conditions rule out a diver, the survey still gets done safely and professionally.

Fully Documented

Every job has the paper trail commercial clients need — specific RAMS, dive plans, HD video, supervisor reports and completion documentation to your requirements.

Straight Answers

No layers of management before you get a response. Experienced people, honest answers on feasibility, cost and timescale — without the runaround.

Delta Diving Services

Let’s Talk About Your Project

Urgent quote, mobilisation schedule or a straight conversation about feasibility — call us or fill in the form.

Direct Line
+44 7400 250 472
Base of Operations
Southampton, Hampshire, UKPrimary: all South Coast ports & harbours
24/7 Emergency Callout
+44 7400 250 472

Request a Quotation

Tell us about your project and we will respond within 4 business hours. For urgent requirements, call directly.

Your details are used only to respond to your enquiry and will not be shared with third parties.