Four parts on TradeBase replace Trimview™ hardware: a 14.5mm concave window roller listed against 10kg rollers, a non-keyed window catch and spring for older windows, the catch spring on its own, and a spring-loaded nylon screen door bottom guide. The mix says a good deal about what goes wrong. Two of the four are catch springs, so the spring inside the window catch is the common failure, losing tension until the sash will not hold closed. Sashes drop when the concave roller wears, and screen doors wander off the track once the bottom guide gives up. Before ordering, measure the roller across its widest point, as 14.5mm is the identifying dimension and concave rollers of this shape are made in several diameters. For the catch, check whether the original is keyed or non-keyed — only the non-keyed catch is listed here.

Trademark notice: Trimview™ is a trademark of its owner. TradeBase Australia is an independent supplier of replacement hardware and is not affiliated with, endorsed by or authorised by the brand owner. Brand and model names appear on this page only to identify the windows and doors our parts are made to fit. Unless a listing states otherwise, the parts shown are aftermarket replacements manufactured to suit — not genuine Trimview™ parts.