Alfen is conceptualized to quench the thirst for most functional and elegant architectural fenestrations. Established in 2007.Deals in manufacturing and trading for high-end aluminium architectural designs, facilitating all the requirements from Aluminium Doors & Windows, railings, pergola, retractable roofs, ACP Cladding to Structural Glazing.
Colin's Sash Windows is best known for disrupting the upvc sash window market in the UK in 2014 by introducing affordable fixed prices for upvc sash windows in the UK. Before this they were generally only available at very high prices through window installers. Today they are market leaders in cheaper alternatives to the renowned steel Crittall interior and exterior windows...