Home Inspection Cost Calculator
Estimate home inspection cost by size and age with recommended add-on tests.
By Konstantin Iakovlev · Updated September 2026 · Source: CFPB — Owning a Home
Home Size (sqft)
Base Inspection
$400.00
Recommended Add-ons
$150.00
Total with Add-ons
$550.00
Inspection Breakdown
| Base home inspection | $400.00 |
| Radon testing (recommended) | $150.00 |
| Pest inspection | $75.00 |
| Mold inspection | $300.00 |
| Sewer scope | $200.00 |
| Total with recommended | $550.00 |
Use the Home Inspection Cost Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.
Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.
How It Works
A professional home inspection priced by the property's size and age is far easier to plan for once you have a number in hand. Folding that figure into your purchase budget early heads off the kind of surprise that derails a closing. A standard inspection usually costs a few hundred dollars, and the add-on tests an older house calls for can nearly double that, so this estimate shows both the base fee and the recommended extras.
The math starts from a $400 base fee for a home up to 2,000 sq ft and adds $100 for each full 1,000 sq ft above that. Age adds $50 for a house of about 25 years and $100 for one of 50 years or more, since older mechanical and structural systems take longer to evaluate. Add-on tests come on top at fixed prices: radon $150 (recommended for every home), pest $75 and a sewer scope $200 (recommended from about 25 years), and mold $300 (recommended at 50+).
Actual costs move with your location, the inspector's depth of experience, and how competitive the local market is, so read these as estimates. Price alone is a poor way to pick an inspector; thoroughness and a strong track record matter far more. Skipping the recommended add-on tests is a costly gamble, since they often surface hidden problems that would otherwise turn into expensive repairs later.
Example: a 3,000 sq ft Home About 25 Years Old
- 1 Input: Home size = 3,000 sq ft, Home age = about 25 years.
- 2 Calculation: Base fee $400, plus $100 for the one full 1,000 sq ft above 2,000, plus $50 for age = $550. Recommended add-ons at this age: radon $150 + pest $75 + sewer scope $200 = $425.
- 3 Result: Base inspection $550. With the recommended add-ons: $975.
- 4 Context: This estimate helps you budget for a comprehensive inspection of a larger, older home, including crucial environmental and pest checks. Confirm these figures with local inspectors, as regional pricing can vary. This provides a solid financial baseline for your home purchase.
Source: CFPB — Owning a Home · Last updated: September 2026
Frequently Asked Questions
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