go in the evening and walk through taking pictures of everything you are unsure of.
I have found a ton of stuff that was done wrong when I did our house (during the boom mind you).
The economy has changed, builders NEED your business, if you aren't happy or confident in what is happening then you need to turn your asshole feature on. They will get away with only what you allow them to.
That being said I found that a case of budwiser goes a long way with the trades. I got all my gas lines upgraded, hot water line run to the yard and other stuff all for a few cases of beer.
Funny how it works if you offered them $40 to do it they would tell you to screw off, but a $30 case of beer goes a long way.
2017 VW Jetta 1.4T (winter car)
2010 F-350 Nortruck Tool Shed
2007 BMW 5 (Wifey's)
2004 Audi A4 1.8T 6spd Stage III w/ Meth
1985 F-250 6.9L IDI w/ATS turbo