Most homeowners don't think about plumbing inspections until something goes wrong. That's understandable — plumbing is mostly invisible. But a proactive inspection every few years is one of the most cost-effective home maintenance investments you can make. Catching a small corrosion issue or joint failure before it becomes a slab leak or flood saves tens of thousands of dollars.
Recommended Inspection Frequency by Home Age
| Home Age / Situation | Recommended Frequency |
|---|---|
| New construction (0-10 years) | Every 3-4 years |
| Mid-age home (10-30 years) | Every 2-3 years |
| Older home (30-50 years) | Every 1-2 years |
| Older home with galvanized or cast iron pipes | Annually |
| Buying or selling a home | Before closing |
What a Plumbing Inspection Covers
A standard plumbing inspection by a licensed plumber typically includes:
- Fixture inspection: All faucets, toilets, showers, and tubs checked for leaks, proper operation, and condition
- Drain inspection: Flow rates tested; visible drain pipes inspected for corrosion, damage, and proper slope
- Water heater: Age, condition, pressure relief valve, anode rod, connections
- Shutoff valves: Main shutoff and individual fixture shutoffs tested for operation
- Visible pipe inspection: Any accessible pipes checked for corrosion, mineral buildup, and joint condition
- Water pressure test: Measured and compared to standard range (40-80 PSI)
- Sewer scope (optional, recommended every 5-10 years): Camera inspection of the main sewer line to identify root intrusion, cracks, or blockages
Warning Signs That Warrant Immediate Inspection
Don't wait for a scheduled inspection if you notice any of these:
- Unexplained increase in water bills (may indicate a hidden leak)
- Discolored water (rust, brown, or cloudy)
- Low pressure throughout the house
- Slow drains throughout the house (not just one fixture)
- Sewage smell anywhere in the home
- Wet spots on walls, ceilings, or floors
- Foundation cracks (possible slab leak)
- Sound of running water when everything is off
What Inspections Cost
- Basic plumbing inspection: $150-$350
- Camera sewer scope: $250-$500 additional
- Whole-house inspection with written report: $300-$600
Compare this to the average cost of water damage repair: $3,000-$15,000 for a moderate leak discovered late. The math strongly favors regular inspections, especially in older homes.
When to Request a Video Sewer Scope
A camera scope of the main sewer line (from clean-out to municipal connection) should be part of any home purchase inspection. It should also be scheduled if: you have slow multiple drains despite cleaning, there are mature trees near the sewer line (roots are the leading cause of sewer blockages), or your home is over 30 years old and has never been scoped.
Schedule a Plumbing Inspection
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