Without doubt, the worst company I have ever dealt with. Had windows, doors and roofline installed by Weatherseal and within days problems arose with the French Doors, also had issues with the back door (replaced), other windows and roofline. After 4 years the French doors still not fixed. At least 6 appointments made through their Motherwell branch have not been honoured (another one today). Shambolic "engineers" who contradict each other on what exactly the problems are, never get called back and as sid "engineers' who simply don't turn up for appointments. Avoid this joke of a company at all costs.....