Profile: DDG specializes in windows and doors. Our product line includes doors, bi-folding doors, windows, and security gates. Our doors include residential & patio doors. Our doors offer a complete draught proof seal, and all profiles have been designed to suit the majority of high security/high performance hinges & locking gears in the market. Our patio doors feature 70 mm coupling face which eliminates the need to trim plasterwork, 28 mm sealed unit facility which enhances noise and thermal insulation, and PVCu/aluminium interlock which provides greater security without compromising beauty.