The brilliant news is that generally speaking the older hatches are straight forward to remove. Newer Lewmar (LP/MP) units can be anothe...

This is a far from exhaustive list but covers some key areas. You can jump to a specific topic by clicking on the links below: Treat scr...

Warning - do not use a powered screwdriver when fitting a Perspex window! ​ Here. we are dealing with a frameless window attached to the ...

Given we make you do this it only seems fair we give you some guidance... Jump to whichever part you need help with; Remove the window Re...

All Lewmar Hatches and Portlights (except old Standard) produced since October 1997 have had identification information heat stamped on t...

The following was prepared by Lewmar in 2008 to address known issues with the original Old Standard Opening Portlight. The Old Standard P...

The ranges are; Superhatch (obsolete - 1980-87) Rollstop (obsolete - 1987-92) Ocean (1992-) Coastline (obsolete - 1991 - 2000) Trimport (...

So, an interscrew has two components; a machine screw a captive threaded, splined bush Machine Screw The engineers name for a bolt. Mach...

There are a number of factors which influence how easy or otherwise it will prove to remove your windows, many of which you'll only truly...

We see lots of variations, some which are a breeze to refurbish, others which are very time consuming and thus expensive to complete. He...

If you have Lewmar New Standard opening portlights we discuss whether spare acrylics are likely to be available

Don't rely on what's stamped on the acrylic to identify a portlight model. Instead, frame construction gives a more reliable guide.

A useful guide to the use of metals in the marine environment written by Moray MacPhail and previously published in Watercraft magazine

Excellent article authored by Colin Shead discussing how he reinstalled windows on his Moody 28 after refurbishment by Eagle Boat Windows

Replacing the panes in some Lewmar old-standard opening ports