Interesting school project @lancang! The construction progress is certainly slow as only 2 buildings were initiated after 4 years. Perhaps some budget constraints? Because that school's location is far away from the city center, do you also charge for the distance traveled as part of your professional fee?
all these windows are made slightly larger than the size of the frames and when installing the windows they can be screwed up to fit the sill.
As we never know the actual dimensions on the project site on certain occasions, it's always good to ensure safety precautions with the final dimensions of your window frames. Have you encountered previous situations where your wooden members were extremely smaller than the actual measurements of the window openings? 😊
Of course I asked for additional fees for the distance I traveled and also for my food there and that was outside of my part of the professional fees.
I got this once when I was contracted to install windows in housing and almost half of the total was smaller than the window opening and if I installed it, it would show a fairly large gap that would make it look ugly...so I consulted with the contractor and explained what is the condition of the windows and also what are the results if I install them, so he decides to replace the windows so that the results are satisfactory, and if not replaced maybe this will have an impact on complaints from consumers who will buy a house there.
Exactly @lancang. I agree with everything you said here. Yes, sometimes we couldn't prevent construction mishaps during the course of our various projects. Fortunately, that contractor in your previous window job corrected the discrepancies thus resulting in a satisfactory house for your client. All the best! 😊