Home Inspection Cost Calculator

Estimate the cost of a home inspection for purchase, new construction, or annual maintenance. Understand what's included and when to add specialty inspections.

🏠 Real Estate📐 Inspection Cost = Base Fee + Specialty Inspections
Home square footage
Home age (years)
Inspection scope
Additional inspections needed
Cost per additional inspection ($)
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Formula & Reference

VariableFormulaUnits
Home Inspection Cost CalculatorInspection Cost = Base Fee + Specialty Inspections$ estimate

Step-by-Step Examples

Example 1
Standard New Purchase

1,800 sq ft, 25-yr home, standard inspection.

  • Base: $325 | Size: $25 | Age: $25
  • Total: $375
  • Add radon $150 + sewer scope $200 = $725 comprehensive
✓ ~$375 standard / $725 comprehensive
Example 2
Large Old Home

3,200 sq ft, 50-yr home, comprehensive.

  • Base: $480 | Size: $75 | Age: $50
  • Add 2 specialty inspections: $300
  • Total: $905
  • Old home may need: chimney, mold, asbestos, lead paint
✓ ~$905 large old home comprehensive
Example 3
New Construction

2,000 sq ft, new build, phased inspections.

  • Phase 1 (pre-pour): $250 | Phase 2 (framing): $250 | Final: $300
  • Total: $800
  • New construction inspections catch issues before they're covered up
✓ ~$800 new construction phases

Real-World Applications

Common Mistakes to Avoid

⚠️
Skipping specialty inspections

A standard inspection doesn't test radon ($100-$150), scope the sewer ($150-$300), inspect for mold ($200-$600), or check the chimney ($100-$250). For homes in radon areas, near trees, over 30 years old, or with fireplaces, these specialty inspections are worth the cost.

⚠️
Choosing the cheapest inspector

A $175 inspection by an inexperienced inspector may miss $20,000 in issues. Look for ASHI or InterNACHI certified inspectors with strong reviews and experience in your area.

⚠️
Not attending the inspection

Be present for the entire inspection. Inspectors can explain findings in person and show you exactly what to watch for. Review the written report carefully and ask questions about anything you don't understand.

Frequently Asked Questions

How much does a home inspection cost?
National average: $300-$500 for standard inspection. Larger or older homes: $400-$700. Comprehensive inspection with radon and sewer: $500-$900. New construction phased inspection: $600-$1,000.
What does a home inspection include?
Standard inspection covers: structure (foundation, framing, roof), exterior (siding, windows, grading), plumbing, electrical, HVAC, interior (walls, ceilings, floors, doors, windows), and insulation/ventilation. It does NOT include: radon, mold, sewer, chimney, or pool without add-ons.
Who pays for the home inspection?
In most US transactions, the buyer pays for the home inspection. Some sellers do pre-listing inspections to identify issues in advance. The cost is typically not negotiated as part of the home purchase price.
What is a sewer scope inspection?
A camera inserted into the sewer line to inspect for damage, root intrusion, bellied sections, or clogs. Strongly recommended for homes over 20 years old or with large trees near the sewer line. Cost: $150-$350. Failed sewer lines can cost $5,000-$25,000 to replace.
What should I do after a bad inspection report?
Don't panic. Almost every home has inspection findings. Get contractor estimates for significant issues. Use the report to negotiate repair credits or price reductions. For serious structural, electrical, or foundation issues, consider walking away or hiring a specialist for a second opinion.

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