What will it cost?

Prices vary.

Inspection fees for a typical single family home vary by geography, size and features of the property, and age of the home. Additionally, services such as septic inspections and radon testing may be warranted depending upon the individual property.

It is a good idea to check prices in your area as you consider a professional home inspection, but keep in mind; the lowest-priced inspector is not necessarily a bargain!
The inspector's qualifications, including experience, training, and professional affiliations, should be the most important consideration in your selection.