Plumbing Inspection — What We Look For
Supply lines, drain systems, water heaters, and the pipes you cannot see.
What we check — 12 inspection points
Every item below is checked on every inspection that includes plumbing.
Supply pipe material
Copper, PEX, CPVC, galvanized, poly-B identification
Drain pipe material
ABS, PVC, cast iron, lead identification
Water heater
Age, type, capacity, TPR valve, venting
Main shut-off valve
Location, type, operation, accessibility
Water pressure
Static pressure reading at hose bib
Fixture function
Every faucet, toilet, tub, and shower tested
Drain flow
Simultaneous operation test for drainage adequacy
Visible leaks
Supply connections, drain connections, fixtures
Sump pump
Condition, operation, float switch, discharge location
Backflow prevention
Backwater valve presence and condition
Thermal moisture check
Infrared scan at all plumbing walls for concealed leaks
Exterior hose bibs
Anti-siphon valves, freeze protection
What we find — top 5 issues
The most common plumbing findings in Ontario home inspections.
Poly-B plumbing
$5,000–$15,000Failure-prone piping requiring full replacement
Galvanized supply pipes
$4,000–$12,000Corroded pipes restricting flow, requiring replumbing
Failed sump pump
$500–$1,500Non-functional basement flood protection
Water heater end-of-life
$1,500–$3,500Tank beyond expected lifespan requiring replacement
Concealed plumbing leak
$1,000–$5,000Active moisture behind finished wall detected by thermal
The Dual-Layer difference for plumbing
Layer 1 — Physical Inspection
Your RHI certified inspector physically examines every accessible plumbing component using professional equipment including thermal imaging camera and moisture detection.
Layer 2 — AI Analysis
Every photo and thermal frame from the plumbing inspection is analyzed by AI for patterns that the human eye can miss. Findings are cross-referenced and verified before appearing in your report.
Related inspection services
Every plumbing checkpoint. Every inspection.
From $325. Same-day report. 12 plumbing checkpoints included.
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