Sheet Acrylic

Clear acrylic

Tinted acrylic

Acrylic items

Windows and hatches

Screw fixed windows

Weatherstrip windows

Hatch acrylic

Porthole lenses

Vetus hatches and ports


Clear Acrylic

Tinted acrylic


Indiarubber channels

Sponge rubber seal

Sliding & hinged windows

Patent weatherstrip

Bedding seals

Finishing trims


Self tapping screws

Machine Screws


Various fixings





Westerly yachts

Polishes and Sealants



Catalogue and
Info sheets





Contact us
Terms and conditions

Welcome to the Hadlow Marine Services website. We specialise in boat windows, screens and hatches. We also stock a large range of stainless steel fixings, rubber seals, polishes and ventilators. We can supply Vetus escape hatches and portholes. Please email

Hadlow Marine has been trading since 1990. Price changes are usually updated on the website as they happen. This website is not geared up for purchasing online. Please phone with your requirements having your credit or debit card ready or email us with your order and we can either pro-forma invoice you for interet banking or invoice your PayPal account. If you cannot view the Contact Us window when you click the button it is because you have asked your browser not to allow pop-up windows. The basic information is also reproduced at the bottom of this page. Please read our terms and conditions before you buy.

There are four common ways of fitting windows to boats:

  • Plastic windows which are made larger than the aperture and screwed to the boat with a PVC gasket or silicone mastic seal. This method is fine for all uses, the thickness of the plastic and the material used can be changed to suit individual circumstances. There are two types of plastic commonly used, acrylic (e.g. Perspex®, Plexiglass®) will last for many years, and polycarbonate (e.g. Lexan®, Makralon®) which because of its chemical construction is much stronger than acrylic but will lose clarity after three or four years unless you purchase it UV protected which is more expensive, the price of clear being the same as tinted acrylic. Because of its strength, thinner sheets can be used where weight has premium over cost e.g. for ocean racing or where there is a vandalism problem.
  • Windows held in place by a rubber seal with a locking strip called the Claytonrite or Patent Weather Strip. This method is fine for river or canal use but at sea there have been incidences of windows being pushed in by large waves.
  • Framed windows fitted with either glass or plastic. Glass is most hard wearing but cannot be used on curves except when moulded by specialists. We do not manufacture new frames but we can refurbish your existing ones. Details of our refurbishment service are in our catalogue available on the Downloads page of this website.
  • Some manufacturers are now bonding on acrylic windows without regard for the fact that the life of the acrylic is a lot less than the life of the boat. It's all down to reducing costs in manufacture. If you have an older Janneau or similar with windows moulded round the cabin top they probably leak, are crazing and it will take a lot of time, effort and expense to correct the situation. My best advice is for you to sell the boat and give someone else the problem. If you have a boat with bonded on acrylic windows make sure you polish them regularly.


International Phone +44 1732 851309
UK PHONE 01732 851 309

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