Hi Ryan,
I understand your worries. I worried for it too initially, but found out that if I dont go to the HDB to make noise, nothing will get done. So personally, me and my hubby actually make a trip down to HDB branch office to make noise and want to see their head to get them off working. Basically, even if you dont make noise, the contractor also wont do a good job cause they got too many units to do. Only if you let them know that you are unhappy with the work done, they will then get to do something. This contractor is under HDB, therefore complaining it to the property officer or even the technical officer etc. it helps. For me, I really met a lot of problems with the contractor who created more defects for me than those i reported. The things they promised to do also not done even after given them ample time. Therefore, I'm left with no choice but to make complain. I even got the consultant to go down and take note of all these defects and so as to get the contractor working. For my case, really mad as just my main door alone, from cant close properly to cant even open the door and the main gate too.
Anyway, above is just my piece of advice after going through the problem I faced. Its up to the individual on how you want to get things done.
By the way, anyone bought fridge already? Any recommendation?