Commercial inspections · Inspection reference
Main systems. Common field findings.
What’s expected of each component, compared with five common defect examples for each system.
Back to commercial inspectionsThese comparisons describe typical visible or observable conditions, not a certification of design, code compliance, or concealed performance. They are not findings about your property or a ranked list of defect frequency. The agreed scope, safe access, and operating conditions determine what can be reviewed.
Site, parking, and drainage
What’s expected vs. common defects
- Paving
What’s expected: Paved areas remain serviceable without significant deterioration.
Common defect: potholes or deteriorated surfaces - Walkways
What’s expected: Walking surfaces remain reasonably even and intact.
Common defect: uneven or raised sections - Drain inlets
What’s expected: Visible drain inlets remain clear.
Common defect: debris or obstruction - Retaining features
What’s expected: Retaining features show no visible displacement.
Common defect: visible leaning or displacement - Site lighting
What’s expected: Visible lighting equipment and wiring remain protected.
Common defect: damaged fixtures or visible wiring
Roof
What’s expected vs. common defects
- Membrane
What’s expected: Visible membrane remains intact.
Common defect: splits or punctures - Seams
What’s expected: Accessible seams remain closed and secured.
Common defect: separation or open laps - Flashings
What’s expected: Visible flashings remain attached and intact.
Common defect: loose or detached edges - Drains
What’s expected: Accessible drain openings remain clear.
Common defect: debris or obstruction - Roof surface
What’s expected: Roof surfaces show no visible drainage-related deterioration.
Common defect: ponding indicators or deteriorated patches
Exterior envelope
What’s expected vs. common defects
- Wall finishes
What’s expected: Visible wall finishes remain intact.
Common defect: cracks or damaged areas - Sealant joints
What’s expected: Sealant remains continuous at visible weather joints.
Common defect: separation or missing material - Doors
What’s expected: Exterior doors and hardware remain serviceable.
Common defect: damaged hardware or poor fit - Glazing
What’s expected: Visible glazing remains intact.
Common defect: cracked or failed panes - Parapets
What’s expected: Visible parapet caps and joints remain intact.
Common defect: damaged caps or open joints
Structure and foundation
What’s expected vs. common defects
- Concrete
What’s expected: Accessible concrete remains intact without exposed reinforcement.
Common defect: spalling or exposed reinforcing - Foundation
What’s expected: Visible foundation cracks show no displacement.
Common defect: displaced cracks - Steel members
What’s expected: Accessible steel shows no material corrosion.
Common defect: visible corrosion - Wood framing
What’s expected: Accessible wood framing remains intact.
Common defect: decay or damage - Connections
What’s expected: Visible structural connections remain secured.
Common defect: missing or loose visible fasteners
Interiors and tenant spaces
What’s expected vs. common defects
- Ceilings
What’s expected: Ceiling finishes remain intact without moisture stains.
Common defect: staining or damaged panels - Floors
What’s expected: Floor finishes remain secured and serviceable.
Common defect: loose finishes or trip concerns - Walls
What’s expected: Accessible walls show no visible moisture damage.
Common defect: moisture damage - Doors
What’s expected: Accessible doors and hardware operate normally.
Common defect: failed hardware or binding - Tenant areas
What’s expected: Agreed inspection areas remain accessible for review.
Common defect: obstructions limiting inspection access
Electrical distribution
What’s expected vs. common defects
- Enclosures
What’s expected: Accessible electrical enclosures remain closed and protected.
Common defect: open knockouts or missing covers - Conductors
What’s expected: Visible conductors remain insulated and protected.
Common defect: damaged insulation or exposed wiring - Connections
What’s expected: Accessible connections show no visible overheating damage.
Common defect: visible overheating - Electrical rooms
What’s expected: Equipment access remains clear.
Common defect: obstructed equipment access - Devices
What’s expected: Accessible devices remain secured with intact covers.
Common defect: loose mounting or damaged covers
Plumbing and restrooms
What’s expected vs. common defects
- Supply piping
What’s expected: Accessible supply piping shows no active leakage.
Common defect: active leaks - Drain connections
What’s expected: Visible drain connections remain leak-free during use.
Common defect: leaks or stains - Fixtures
What’s expected: Fixtures remain securely mounted and intact.
Common defect: loose mounting or damage - Drains
What’s expected: Drains discharge during normal fixture use.
Common defect: slow discharge during use - Pipe supports
What’s expected: Accessible piping remains supported.
Common defect: missing or deteriorated supports
Domestic hot water
What’s expected vs. common defects
- Tank
What’s expected: Accessible tanks show no leakage or material corrosion.
Common defect: visible leakage or corrosion - Connections
What’s expected: Visible fittings remain leak-free.
Common defect: dripping or deteriorated fittings - Relief discharge
What’s expected: Visible relief-discharge piping remains present and serviceable where required for the equipment.
Common defect: missing or damaged visible piping - Venting
What’s expected: Visible vent connectors remain secured without material corrosion.
Common defect: separated or corroded connectors - Drain pan
What’s expected: Where needed for the installation, a serviceable pan and drainage provision remain in place.
Common defect: missing or damaged where installation conditions warrant review
HVAC and ventilation
What’s expected vs. common defects
- Filters
What’s expected: Filters remain reasonably clean and fitted.
Common defect: accumulated debris - Condensate
What’s expected: Visible condensate drainage remains serviceable without leakage.
Common defect: leaks or blocked visible drains - Ductwork
What’s expected: Accessible ductwork remains connected and intact.
Common defect: disconnected or damaged sections - Equipment housing
What’s expected: Visible equipment housings and panels remain intact.
Common defect: corrosion or missing panels - Controls
What’s expected: Equipment responds to normal controls when safe to operate.
Common defect: failure to respond during operation
Stairs, exits, and routes
What’s expected vs. common defects
- Travel routes
What’s expected: Accessible travel routes remain unobstructed.
Common defect: stored items or obstructions - Stair treads
What’s expected: Visible stair treads remain secured and intact.
Common defect: loose or damaged surfaces - Handrails
What’s expected: Accessible handrails remain secured.
Common defect: loose or damaged sections - Guards
What’s expected: Visible guards remain intact.
Common defect: missing or damaged components - Exit doors
What’s expected: Accessible exit doors and observed hardware operate without binding.
Common defect: binding or failed observed hardware
Visible fire protection
What’s expected vs. common defects
- Extinguishers
What’s expected: Provided extinguishers remain accessible and identifiable.
Common defect: missing or obstructed units - Inspection tags
What’s expected: Available service records clearly identify inspection status.
Common defect: absent or unclear service records - Sprinkler heads
What’s expected: Visible sprinkler heads remain free of damage and paint.
Common defect: visible damage or paint - Alarm equipment
What’s expected: Visible alarm equipment shows no displayed trouble indication.
Common defect: displayed trouble indications - Fire doors
What’s expected: Accessible fire-door surfaces and observed closing features remain serviceable.
Common defect: damaged surfaces or observed closing issues
Accessible entry features
What’s expected vs. common defects
- Routes
What’s expected: Accessible routes remain clear with serviceable surfaces.
Common defect: obstructions or surface damage - Ramps
What’s expected: Visible ramp surfaces and edges remain intact.
Common defect: damaged surfaces or edges - Entry thresholds
What’s expected: Visible thresholds remain serviceable without damaged transitions.
Common defect: raised or damaged transitions - Door hardware
What’s expected: Observed door hardware remains serviceable.
Common defect: damaged or difficult operation - Restroom features
What’s expected: Provided visible restroom support hardware remains secured and intact.
Common defect: loose or missing visible support hardware
Observations need context.
An observed condition does not always establish its cause, severity, or repair method. The report identifies relevant limitations and recommends qualified evaluation where appropriate. Concealed defects, system certification, and specialized testing are outside a standard visual review unless separately agreed.
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