Installed two doors , one front composite door, which became worse in weeks than old uPVC door we had. Requested to have a look on it and couple days later guys came and spend hour on it. Unfortunately it had only small changes on it, finally we could locked it without breaking handle. Weeks ago asked if guys could check door again as it's proper wind coming through all corners and yes no replies at all.
Second PVC door had to adjust myself couple weeks later.
Would I recommend theses lads ? Definitely NO. Price it's good but installation it's just awful and there's no any guarantee as soon money it's transferred.