You can have as many different inspections at as many phases as you choose to. The three standard inspections are:
- Pre-pour just before they pour the foundation concrete.
- Pre-sheetrock which is just the point before they install insulation.
- Final inspection just before you take possession and preferably before your final walk through.
There are issues that can be missed between these and any good Inspector performing phased inspections can let you know what can be missed and why.
The local municipality might be performing their building inspections but do not expect them to be anywhere near as thorough as your own independent Inspector. You might feel the costs are high but compare that to the potential for missed items by the builder. Many items can be missed by the builder and gone unknown until they cause problems after you take possession.