22 Years Experience

Boat Building & Maintenance

Pride and Service

Quality Workmanship

Career at Cosine

Industry Leaders in Sydney

About Us

Welcome to Cosine Marine

Established in the Boat Building & Maintenance Industry for over 22 years, we service vessels of all types in and around the Sydney basin. We pride ourselves on our quality workmanship, extensive experience and great customer service, all of which underpin every job we undertake. Our large workshop and yard offers the capability to store and work on a variety of vessels and we also provide a fully mobile service Sydney-wide.

Custom Moulded Products

Custom made fibreglass products including consoles in our Workshop. We make a vast range of custom mould from consoles to hard tops to your specifications.

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Timber Work

Prevention of rot and sealing of timber, traditional timber work and furniture. We do all facets of timber work from structural to fit-outs and varnish works.

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General Repairs

We carry out a range of repair work from large to small repairs. Including of rot repairs, cosmetic repairs, structural repairs and much more.

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Quality Work

Experience and Service

22

Years Experience

We service vessels of all types and sizes.

238

Services Per Year

Let us take care of your pride and joy.

1,425

Yearly Coffees

The fuel we burn to complete jobs on time.

Career at Cosine

Now Hiring!

Cosine Marine Pty Ltd is looking for qualified trades people to join our expanding team.

We are currently looking for experienced boat builders.

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Cosine Marine

Premium
Service

Established in the Boat Building and
Maintenance Industry for over 22 years.

Premium quality service to all locations
in and around the Sydney Basin.

Our Services

  • General Repairs
    General Repairs
    We carry out a range of repair work from large to small repairs.
  • Fibreglass Work
    Fibreglass Work
    Treatment for stress cracks, repair of collision damage and much more.
  • Timber Work
    Timber Work
    Prevention of rot and sealing of timber, traditional timber work and furniture.
  • Installations
    Installations
    We have extensive experience with all upgrades and new fittings.
  • Custom Moulded Products
    Custom Moulded Products
    Custom made fibreglass products including consoles in our Workshop
  • Plumbing
    Plumbing
    Design and construction of all general plumbing work.
  • General Maintenance Work
    General Maintenance Work
    Regular maintenance work: running gear servicing and repairs and more.
  • Slipping & Antifoul
    Slipping & Antifoul
    We have access to slipway facilities in all areas of Sydney to clean, detail and service your boat out of water
  • Fit-Outs
    Fit-Outs
    Fit-outs cabinetry to new flooring, new techniques in use flooring materials.
  • Insurance
    Insurance
    We work with insurance companies for large structural repairs to smaller cosmetic repairs.

Meet our team

Carl

The Captain

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Testimonials

What our clients say

Recently we had the pleasure of undertaking the challenge to completely refurbish a Formula 233. To say everyone was more than pleased with the outcome is an understatement.   When only the best will do, get the Dream Team from Cosine Marine! We just completed a full rebuild/refurbishment of our beloved Formula 233 with the talented shipwrights from Cosine Marine.

Michael Toohey

Thanks for fitting me in with such short notice. It was a job well done and the result is far better than how it looked before.

Paul – Timber veneer repair

Carl and the team from Cosine were great to deal with.

Jeff – Jeanneau SO 349
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