Inspection-Ready Standards

The final walkthrough is the moment of truth. Whether it's a building inspector issuing a certificate of occupancy, a general contractor accepting the project, or a homeowner seeing their new home for the first time — the cleanliness of the space makes or breaks that first impression.

This guide covers exactly what inspectors and GCs look for, the areas where cleaning crews most commonly fail, and how to consistently deliver inspection-ready results.

What Building Inspectors Check

Building inspectors conducting final inspections for certificates of occupancy (CO) are primarily looking at code compliance — electrical, plumbing, structural, fire safety. However, excessive construction debris or unclean conditions can delay or fail an inspection for several reasons:

What General Contractors Check

GC walkthroughs are more thorough than code inspections when it comes to cleanliness. Here's what experienced GCs and superintendents look for:

The Five-Point GC Inspection

1. The Door Frame Test — Run a finger across the top of any interior door frame. If white dust appears, the space has not been properly final-cleaned. This is the single most common GC test and the most frequently failed.
2. The Window Angle Test — Look at every window from multiple angles. Construction dust and streaks are invisible straight-on but visible at an angle in sunlight. This test must be performed in daylight.
3. The Cabinet Interior Test — Open every cabinet and drawer. Check interior surfaces for dust, drywall compound residue, and debris. Check that drawer glides are clean and smooth.
4. The Baseboard Test — Run a finger along the top edge of baseboards. This ledge collects drywall dust and is frequently missed by cleaning crews who only wipe the face.
5. The Floor Test — Get down to floor level and look across the surface. Dust, adhesive residue, and missed spots are visible when viewed at a shallow angle. This test works best in rooms with natural light.

What Homeowners Check

New homeowners are often more demanding than inspectors or GCs because they're evaluating their investment, not just code compliance. Common homeowner complaints about inadequate post-construction cleaning:

• "There's still construction dust everywhere" — fine drywall dust on surfaces, in cabinets, on shelving
• "The windows are filthy" — streaks, stickers not removed, paint overspray on glass
• "The appliances weren't cleaned inside" — packaging left in oven, dust inside refrigerator
• "The floors are gritty" — abrasive drywall dust that scratches when walked on
• "The HVAC is blowing dust" — contaminated ductwork from construction, dirty filters
• "There's adhesive/caulk residue on the counters" — leftover from installation

Standards by Project Type

How to Consistently Pass Every Walkthrough

1. Clean from top to bottom — ceiling, walls, fixtures, then floors. Dust falls downward. Never clean floors first.
2. Clean from back to front — start at the farthest point from the exit and work toward the door. This prevents walking through cleaned areas.
3. Use the right light — always clean with lights on AND natural light. Overhead light hides what sunlight reveals.
4. Self-inspect before calling GC — walk the entire project as if you were the GC. Run the five-point inspection on yourself.
5. Photograph everything — document your completed work. This protects you if trades re-enter the space and create new mess.
6. Verify all trades are complete — this is the #1 cause of failed walkthroughs. If someone works in the space after you clean, you'll need a re-clean.