CONWERT WINDOWS and DOORS

I used CONWERT Windows and Doors (proprietor Dirk van der Schyff) to replace old wooden windows with new aluminium windows and sliding doors. 1)When he commenced work, he was one week late from when he said he would start for sizing the window and door frames. 2) He had 5 windows to instal and the and 4 out of the 5 windows and the door arch were incorrectly sized by him and had the be sent back to manufacturer to be resized. 3) He was late in numerous instances as were the subcontractors he used 4) He left the project where the footing of the doors was not silicone sealed on the inside. 5)He did not finish the silicone sealing between the top of the sliding doors and the arch. 6) overall the finishing and sealing of windows and sloppy. 7) He did not repair the paintwork damaged by the installations I will doing repairs with a more professional contractor. 8) He did give me a discount for the wrongly sized windows and doors but..... 9) He started on the 6th May and finished on the 21st of July for a project in his own words should take 2 weeks. 10 I do not recommend this window contractor on any level and would warn against his promises and quality of work