Griffin Inspection Services offers Pre-Drywall inspection services around the Pittsburgh region on new construction homes. A pre-drywall inspection happens during the phase of the home building process that is just after the installation of certain elements – such as the doors, windows, foundation, wall framing, floor framing, roof framing, and the HVAC/plumbing and electrical rough-in – and right before the drywall is hung. This is a useful inspection to be done at this time as the drywall and finishes will conceal most of the items inspected during this time.
The standards for this type of inspection can be found here PDF of ASHI Pre-Drywall Standards.
A list of items that will be inspected include, electrical wiring, framing, foundation slabs, notching of floor joists, firestop material, plumbing piping, waterproofing, flashing for windows and doors, wall studs, any missing metal clips and anchors, and the installation of HVAC air ducts and registers.