🧭 Why We Inspire Confidence:

Experienced marine specialists who understand the demands of inland and coastal boating
Clear communication and transparent quotes — no hidden costs or vague promises
High-quality materials and marine-grade components used in every job
Flexible scheduling and mobile services, wherever your boat is moored
Proven results and satisfied customers across the waterways

🔧General Marine Services & Maintenance

Routine Servicing
Keep everything running smoothly with engine checks, filter changes, belt inspections, and fuel system servicing.
Winterisation & Commissioning
Seasonal prep and protection for onboard systems, preventing costly issues from frost or inactivity.
Deck Hardware & Safety Gear Fitting
Installation of cleats, davits, fenders, solar mounts, and other hardware — always watertight and built to last.
Ongoing Maintenance Packages
Custom care plans to keep your vessel shipshape year-round — ideal for liveaboards, long-distance cruisers, or holiday hire boats.

⚡ Marine Electrical Services

Full Electrical System Installations
Custom-designed systems for narrowboats, cruisers, and yachts — safely installed with marine-grade components and meticulous wiring.
Battery Banks & Power Management
Professional setup of battery banks, inverter/charger systems, solar integration, and control panels to ensure safe and reliable power at all times.
12V/24V/240V Troubleshooting & Repairs
Fast, accurate diagnostics and repairs for lighting, pumps, heating, and onboard appliances — no guesswork, just dependable fixes.
Upgrades & Modernisation
Replace outdated or unsafe electrics with modern, efficient systems. We bring your boat up to today’s standards with clean, labelled, and easily serviceable layouts.

🛠️ Boat Refitting & Renovation

Full Interior Overhauls
Transform tired or outdated interiors with new layouts, panelling, flooring, cabinetry, and fittings — all finished to a high standard.
Structural Repairs & Modifications
Welding, hull work, or structural improvements handled with technical know-how and long-term durability in mind.
Systems Overhaul (Plumbing, Heating, Fuel)
Safe, clean installs of hot water systems, Webasto or diesel heating, fresh water tanks, and efficient plumbing tailored to your layout.
Custom Projects
Have a vision? We’ll help design and deliver it — whether it’s bespoke joinery, unique storage solutions, or specialised features.

🎨 Professional Boat Painting

Full Exterior Repaints
We prepare, prime, and paint to a flawless finish using high-grade marine paints. Whether it’s a narrowboat, Dutch barge, or cruiser — we deliver long-lasting, beautiful results.
Antifouling Application
Protect your hull from biofouling with professionally applied antifoul coatings, ensuring smooth cruising and hull longevity.
Two-Pack Paint Systems & Varnishing
High-performance coatings and varnishes for topsides, decks, and timber details — chosen and applied for both beauty and resilience.
Touch-Ups & Cosmetic Repairs
Scratches, fading, or minor dents? We’ll restore your paintwork with seamless colour matching and expert finish.
Blacking and Bitchumin Based Paints

A little about us

Joinson Marine is your trusted partner for all marine electrical engineering needs, offering expert services that include electrical system installations, troubleshooting, and maintenance for boats of all sizes. Our experienced team is also skilled in boat painting, renovations, and custom modifications, ensuring your vessel not only runs smoothly but looks its best. Whether you're looking to upgrade your boat's electrical systems, restore its aesthetic appeal, or carry out essential repairs, Joinson Marine delivers top-quality craftsmanship and service, tailored to meet the unique demands of your maritime lifestyle.