We're two days in to the window fitting now (Monday, of course, being a bank holiday).

The manufacture of the windows is first class - all detailing as expected, dual colour painting carried out as specified (white inside, brown outside), and subtly incorporating the deeper than average DG units. My only gripe is that the plant room window was a little too short, and had to be packed out with timber and expanding foam - but that was duly dealt with.

Unfortunately the same can't be said of the fitting process. I'd originally requested supply-only from the window company, but they insisted on doing the fitting; the compromise was that the main contractors would rip out the old windows and prepare the openings (which includes fitting cavity closers), with the window fitters then installing the new windows. I had envisaged that the teams would work together, getting a "rhythm" going where one lot are fitting a window whilst the others are preparing the next one. But this didn't happen: the window fitters weren't very accommodating when the fitting of the cavity closers turned out to be a more complex task than envisaged. They walked off-site at 2:30pm today (that's even earlier than their already early stated finish time of 3pm) without letting me or anyone else know, leaving me to phone the company's office to establish what was going on - hardly good customer service!
 
It's a shame, because the difficulty of the working relationship with them throughout this project tarnishes an otherwise excellent product that they offer; here's an example: