Sea Jay Marine Services fitting a bespoke navy cockpit enclosure on a motor boat

Made in North Wales · Built around your boat

Made to fit.
Made to last.

Bespoke boat covers, sprayhoods, cockpit enclosures and marine upholstery—designed, patterned and made by a family business with more than 30 years of experience.

Tell us about your project Explore our work ↘

30+Years of experienceBespokePatterned by handBangorNorth Wales workshop

Sea Jay Marine Services

Craftsmanship shaped around life on the water.

Every boat is different—and every owner uses it differently. We listen first, then make a solution that fits accurately, works naturally and looks at home on board.

See how we work →

What we make

One workshop.
A complete service.

From a small repair to a full new enclosure, the same care goes into the pattern, the materials and the final fit.

Boat covers

Made-to-measure cockpit, tonneau, winter and full boat covers, shaped around every rail, screen and fitting.

Sprayhoods

New sprayhoods and carefully fitted replacements with clear sightlines, dependable structure and a clean finish.

Cockpit enclosures

Weather protection with detachable panels that store neatly, leaving a practical bimini sunshade when removed.

Marine upholstery

Interior and exterior cushions, seating, berth infills and soft furnishings made for the demands of life afloat.

Repairs & alterations

Replacement windows, zips, panels and fittings, plus considered alterations that extend the life of existing canvas.

Rigging & sail work

Standing and running rigging, mast work, sail repairs and practical support from an experienced marine team.

Cover & sail valet

A specialist cleaning and care service to help covers and sails look better, work properly and last longer.

Bespoke projects

Canopies, specialist vehicle covers, outdoor enclosures and one-off fabric projects where an exact fit matters.

Precision templating

From clear template to finished cover.

This is our method of templating for accuracy and true bespoke capability. Using plastic polythene sheeting of the correct specification, we shape and mark every project directly on the boat so we can meet each customer's individual wants and needs on every cover we complete.

01Template on the boatWe form the polythene over the exact area the finished cover will occupy.
02Mark every detailEdges, joins, fittings and access points are recorded directly on the template.
03Cut, sew and fitThe template becomes a precise working pattern for a clean, secure finished cover.

Clear polythene precision template fitted over a large motor boat — 01Precision template

Finished full grey cover made from the clear polythene template — 02Finished cover

The same project, from first pattern to final fit.

More ways to use your cockpit

An enclosure when you need it. A bimini when you don't.

Our cockpit enclosures are designed with detachable panels all around. Take the panels off for easy, compact storage and the roof remains in place as a bimini—giving you an open cockpit with useful shade.

Detachable side and rear panels
Compact, practical storage
Clear all-round visibility
Bimini sunshade left in place

Cockpit enclosure with a detachable panel unzipped and rolled — Panels detach & store

Cockpit enclosure with panels removed leaving the bimini roof as a sunshade — Open bimini mode

One enclosure · Two viewpoints

Protection without losing the view.

Paired photographs show the whole job when one angle cannot. These opposite internal views reveal the shelter, light and usable space created by the finished enclosure.

View aft from inside a large cockpit enclosure

View forward from inside the same large cockpit enclosure

Before & after

Worn out.
Rebuilt properly.

The old cover was faded, damaged and no longer protecting the cockpit. A replacement was patterned and made from scratch for a taut fit, reliable fixings and renewed protection.

Damaged and faded blue boat cover before replacement — Before

New blue made-to-measure boat cover after replacement — After

Marine upholstery

Comfort, renewed.

Made-to-measure cushions can transform how a boat feels. We produce interior seating, berth cushions, infills and exterior cockpit cushions with carefully shaped foam, durable materials and a finish that belongs on board.

Ask about upholstery

New made-to-measure blue saloon upholstery and berth infill on a sailing boat — Saloon seating & berth conversion

New blue berth cushions fitted in a boat cabin — Berth cushions

New blue exterior cockpit cushions on a motor boat — Exterior cushions

Selected work

Built for the job in front of us.

Every line, opening and fastening has a purpose. Here is a closer look at the range of work coming through our workshop and fitted on location.

**Complete cover sets**Made-to-measure protection

**Sprayhoods**Visibility, shelter and fit

**Dodgers**Personalised and purpose-made

**Cockpit cushions**Comfort made for outdoors

Customer reviews

Trusted on the water.

5.0Google reviews

★★★★★
“Absolutely fantastic service and incredibly helpful and friendly. They came to our rescue after another company made a poor job of our canopy and Sea Jay Marine services not only corrected it but improved it too. Highly recommended and an absolutely top job 😊👌”
Pete SmithGoogle review

★★★★★
“Superb job refurbishing the cockpit covers and tonneau for our Cruise Craft. First class job.”
Neil McAllionGoogle review

★★★★★
“Excellent service. I made contact as our boat cover zip had broken over winter. Due to our location and the boat’s location it was difficult to arrange as I didn’t want to leave the boat uncovered for a long period of time. Sea Jay Marine removed the cover, fixed the cover and then visited again to replace it once repaired. I really appreciated that, as it made the whole process stress free. Thanks again.”
Martin CollingeGoogle review

★★★★★
“Great to see how well J has setup the new workshop and boy, is it busy!”
Mark RosenthalGoogle review

Beyond the boatyard

If it needs an exact fabric fit, talk to us.

Marine work is our core, but the same patterning, fabrication and fitting skills can solve unusual projects on land—from vehicle canopies and outdoor enclosures to genuinely one-off structures.

Finished bespoke fabric-covered geodesic dome in woodland — Finished outside

Interior of the finished bespoke fabric-covered geodesic dome — Finished inside

Our story

A family business, built one job at a time.

Cjay sewing one of Sea Jay Marine Services' first jobs in the original Griffiths Crossing workshop

Where it began

Built by Cjay.

Sea Jay Marine Services was founded by Cjay—the name behind the business itself. This photograph captures him sewing one of the company's first jobs in the original workshop at Griffiths Crossing, on the machine that helped begin the story.

Construction under way inside the current Sea Jay Marine Services workshop — Building the new workshop

Completed cutting and sewing room in the current Sea Jay Marine Services workshop — Made ready for larger work

The next chapter

Room to grow.

As the business grew, Sea Jay moved into larger premises at Llandygai Industrial Estate. The current workshop was shaped around the work, with extensive patterning tables and dedicated space for cutting, sewing and producing larger bespoke projects.

The first Sea Jay Marine Services vehicle to carry the full company branding

Carrying Sam with us

A milestone with meaning.

Our first fully branded company vehicle marks an important step for Sea Jay Marine Services. Within the lettering, the blue S, A and M form a quiet tribute to Sam—Cjay's son and a much-loved part of our family and business. His contribution remains part of everything we carry forward.

Sea Jay Marine Services current workshop at Unit 24, Llandygai Industrial Estate

Visit the workshop

Made locally in Bangor.

Units 23 & 24
Llandygai Industrial Estate
Bangor, LL57 4YH

Call 01286 802249 →

Request a quote

Show us your boat.

Tell us what you need and send a few clear photographs. Overall views and close-ups help us understand the shape, access and fittings before we speak.

Prefer to talk?01286 802249 info@seajaymarineservices.com

Made to fit.Made to last.

Craftsmanship shaped around life on the water.

One workshop.A complete service.

Boat covers

Sprayhoods

Cockpit enclosures

Marine upholstery

Repairs & alterations

Rigging & sail work

Cover & sail valet

Bespoke projects

From clear template to finished cover.

An enclosure when you need it. A bimini when you don't.

Protection without losing the view.

Worn out.Rebuilt properly.

Comfort, renewed.

Built for the job in front of us.

Trusted on the water.

If it needs an exact fabric fit, talk to us.

A family business, built one job at a time.

Built by Cjay.

Room to grow.

A milestone with meaning.

Made locally in Bangor.

Show us your boat.

Made to fit.
Made to last.

One workshop.
A complete service.

Worn out.
Rebuilt properly.