Building Inspections: The Complete Guide
Inspections are the checkpoints that ensure your home is built safely and to code.
Pass them, and your project moves forward. Fail them, and you're looking at delays and re-work.
As an owner-builder, you'll be scheduling and managing all inspections yourself. This guide will help you understand the process and pass every inspection on the first try.
Never skip or avoid inspections. They're protecting you from expensive mistakes and legal liability.
Why Inspections Matter
Safety: Inspections catch structural, electrical, and fire safety issues before they're buried in walls.
Code Compliance: Your home must meet minimum code requirements for health, safety, and welfare.
Legal Protection: Passed inspections protect you legally. They prove your home was built to code.
Resale Value: Future buyers and lenders will require documentation of passed inspections.
Insurance: Many insurers won't cover homes without proper permits and inspections.
Covering work before inspection means you'll have to tear it out and rebuild it. I've seen this cost $8,000+ in wasted materials and labor.
Required Inspections (Typical Sequence)
Here's the standard inspection sequence for a new home build. Do not skip or reorder these—each must pass before the next.
| Inspection | When | What They Check | Duration |
|---|---|---|---|
| **1. Footing**<br/><a href="/inspections/foundation-inspection">Detailed Guide →</a> | Before pouring footings | Excavation depth, soil bearing, rebar, footing dimensions | 15-30 min |
| **2. Foundation**<br/><a href="/inspections/foundation-inspection">Detailed Guide →</a> | Before backfill | Wall thickness, rebar, anchor bolts, waterproofing | 20-40 min |
| **3. Under-Slab Plumbing** | Before slab pour | Drain lines, water lines, proper slope, pressure test | 15-30 min |
| **4. Framing**<br/><a href="/inspections/framing-inspection">Detailed Guide →</a> | Before insulation/drywall | Structural members, connections, headers, shear walls, fire blocking | 30-60 min |
| **5. Rough Plumbing**<br/><a href="/inspections/rough-in-inspections">Detailed Guide →</a> | Before covering walls | Pipe sizing, venting, drainage, fittings, pressure test | 30-45 min |
| **6. Rough Electrical**<br/><a href="/inspections/rough-in-inspections">Detailed Guide →</a> | Before covering walls | Wire sizing, boxes, grounding, panel, AFCI/GFCI | 30-60 min |
| **7. Rough HVAC**<br/><a href="/inspections/rough-in-inspections">Detailed Guide →</a> | Before covering | Ductwork, equipment, combustion air, venting | 20-40 min |
| **8. Insulation**<br/><a href="/inspections/insulation-inspection">Detailed Guide →</a> | Before drywall | R-value, installation, vapor barriers, energy code | 20-30 min |
| **9. Final**<br/><a href="/inspections/final-inspection">Detailed Guide →</a> | All work complete | Everything—structure, systems, finishes, safety | 45-90 min |
From footing to final inspection: 12-18 weeks for a typical new build, assuming no failed inspections. Each failed inspection adds 5-7 days to your timeline.
Jurisdictional Variations
Your specific area may require additional inspections:
- Gas rough-in inspection
- Fireplace/chimney inspection
- Deck/porch inspection
- Septic system inspection (usually separate department)
- Well inspection (usually separate department)
- Fire sprinkler inspection (if required)
- Energy inspection (increasingly common)
Critical: Get a complete list of required inspections from your building department when you get your permit.
Scheduling Inspections
How Much Notice?
- Typical: 24-48 hours advance notice
- Some departments: Same-day or next-day
- Rural areas: May need a week
- Busy season: Longer wait times
Tip: Call early in the morning (7-8 AM) to get on that day's schedule or first thing next day.
How to Schedule
Most building departments allow:
- Phone calls
- Online portal
- Mobile app
Have ready when calling:
- Permit number
- Address
- Type of inspection
- Your contact phone number
- Preferred inspection time
What Time Will They Come?
Inspectors typically:
- Don't give exact times
- Give windows (morning/afternoon)
- Run ahead or behind schedule
- May call 15-30 minutes before arrival
Plan to be available all morning or all afternoon
Who Must Be Present?
- You (owner-builder): Should always be there
- The trade contractor: Required for their specialty inspection
- No one technically required: But being absent is a bad idea
Why you should attend:
- Answer questions
- Take notes on any corrections
- Build relationship with inspector
- Learn what they look for
- Catch issues immediately
What Inspectors Actually Check
Inspectors are looking at three things:
1. Code Compliance
Does it meet minimum code requirements?
- IRC (International Residential Code)
- Local amendments
- Energy code
- Fire code
2. Safety
Will this hurt someone?
- Structural integrity
- Electrical safety
- Fire hazards
- Egress requirements
3. Consistency with Plans
Does the built work match approved plans?
- Major deviations require permit amendments
- Minor field changes usually ok with documentation
They are NOT checking:
- Quality beyond code minimum
- Aesthetic choices
- Cost-effectiveness
- "Better" methods that exceed code
During the Inspection
Be Prepared
- Have permit posted visibly on site
- Have approved plans available
- Clean work area (clear debris)
- Provide adequate lighting
- Be ready to access all areas
- Have a notebook and pen
Attitude Matters
Do:
- Be respectful and professional
- Listen carefully
- Ask questions if unclear
- Take detailed notes
- Thank them for their time
Don't:
- Argue or get defensive
- Make excuses
- Bad-mouth other inspectors
- Rush them
- Be absent
Remember: Inspectors are doing a job. Make it easy for them, and they'll usually work with you.
Taking Notes
Write down:
- Specific failures and corrections needed
- Code sections referenced
- Inspector's name
- Date of inspection
- Exactly what needs to be fixed
Don't trust your memory. Get it in writing or write it yourself.
Passing vs. Failing
Passed Inspection
Inspector will:
- Sign off on inspection card or in system
- Note "approved" or "passed"
- Sometimes provide written approval
- Move you to next phase
You can proceed with next work phase immediately.
Failed Inspection
Inspector will note:
- Specific failures
- Code sections violated
- Required corrections
- Whether you can proceed with other work
Common outcomes:
- "Failed - correct and call for re-inspection"
- "Approved with corrections" (can proceed but must fix issues)
- "Failed - do not proceed" (must fix before continuing)
If You Fail
Don't panic. Inspection failures happen to professionals too.
Get Specific Details
Ask Questions
Ask About Re-Inspection
Fix Issues Properly
Document the Fixes
Call for Re-Inspection
Timeline: Usually 1-3 days for scheduling
Fees: Some jurisdictions charge $50-150 for re-inspection, some don't. Ask when you get your permit.
Impact: Each failed inspection adds 5-7 days to your project timeline.
Common Reasons for Failure
Across all inspection types, these are the top reasons:
1. Work Not Complete
- Inspector arrives and work isn't ready
- Missing components
- Temporary installations
Fix: Don't call until truly ready
2. Code Violations
- Doesn't meet specific code requirement
- Missing required safety features
- Incorrect sizing or spacing
Fix: Know the code before building
3. Doesn't Match Plans
- Built differently than approved
- Unauthorized changes
- Missing elements shown on plans
Fix: Build to plans or get plan amendments
4. Accessibility Issues
- Can't access area to inspect
- Covered before inspection
- Blocked by materials or debris
Fix: Keep areas clear and accessible
5. Safety Concerns
- Unsafe temporary conditions
- Hazardous installations
- Missing required safety features
Fix: Prioritize safety always
See detailed failure points by inspection type →
Working with Inspectors
Building a Good Relationship
- Learn their names
- Be consistently prepared
- Show you care about doing it right
- Accept corrections gracefully
- Don't waste their time
Why it matters: Inspectors have discretion. A good relationship means:
- They might help you solve problems
- Give you benefit of the doubt on minor issues
- Provide guidance before you build
- Be available for questions
When You Disagree
Sometimes you'll think an inspector is wrong. Here's how to handle it:
Step 1: Make sure you understand
- Ask them to explain
- Request the specific code reference
- Take notes on their reasoning
Step 2: Research the code
- Look up the code section
- Read it carefully
- Check local amendments
Step 3: If you're still convinced they're wrong
- Respectfully ask to discuss
- Show them your code reference
- Ask if there's a local amendment you're missing
- Request to speak with supervisor if unresolved
Step 4: Appeal if necessary
- Most jurisdictions have an appeal process
- Usually goes to building official or board
- Requires documentation of your position
Reality check: 90% of the time, the inspector is right. Make absolutely sure before pushing back.
Special Situations
Remote/Video Inspections
Some jurisdictions now allow:
- Video call inspections
- Photo submissions
- Self-certification for minor work
Requirements:
- Good photos from multiple angles
- Measurements visible
- Clear documentation
- May need to be available for live video
Third-Party Inspections
In some areas, private inspection companies can:
- Conduct inspections
- Submit reports to building department
- Speed up the process
Costs: $100-300 per inspection Benefit: Faster scheduling, more flexible
Multiple Inspections Same Day
You can often schedule:
- Rough plumbing, electrical, HVAC together
- Saves time having them on-site once
Coordination required: All trades must be complete
Inspection Costs
Inspection fees are typically included in permit fees, but some jurisdictions charge:
- Re-inspection fees: $50-150
- After-hours inspection: $100-300
- Rush inspection: $150-300
- Special inspection: Varies
Total typical fees: $0-500 (beyond permit costs)
Documentation
Keep Records Of:
- Inspection dates
- Inspector names
- Pass/fail results
- Correction items
- Photos of work before covering
- Contractor certifications
Why: You'll need this for:
- Certificate of occupancy
- Lender requirements
- Future resale
- Legal protection
- Your own reference
Photos Are Your Friend
Take photos of:
- All structural connections before covering
- Plumbing and electrical rough-in
- Insulation installation
- Any unusual conditions
- Corrections made after failed inspection
These photos can:
- Help you remember what's behind walls
- Prove work was done correctly
- Support appeals if needed
- Help contractors troubleshoot later
Inspection Checklist
Before EVERY Inspection - Master Checklist
Timeline Planning
Critical: Inspections can't be scheduled on your timeline alone.
Build in buffer time for:
- Inspector scheduling delays (2-5 days)
- Failed inspection and corrections (3-7 days)
- Re-inspection scheduling (1-3 days)
- Weather delays preventing inspection access
Example timeline:
- Day 1: Complete framing
- Day 2-3: Call for inspection, scheduled for Day 5
- Day 5: Inspection (passed)
- Day 6: Insulation starts
If inspection fails:
- Day 5: Fail inspection
- Day 6-7: Make corrections
- Day 8: Request re-inspection
- Day 10: Re-inspection (passed)
- Day 11: Insulation starts
5-day delay from one failed inspection
This is why passing first time is crucial.
Mental Game
Inspections can be stressful. Here's the mindset:
They're protecting you: Inspectors catch mistakes before they're permanent
It's not personal: They fail professionals too
Learn from it: Each inspection teaches you something
Ask questions: Most inspectors enjoy teaching
Stay calm: Getting upset never helps
Next Steps
Understand each specific inspection type:
- Foundation Inspections →
- Framing Inspections →
- Rough-In Inspections →
- Insulation Inspections →
- Final Inspections →
**Most importantly