An in-house home inspection is just one of the very first phases of the due diligence evaluation process of buying a home. A property inspection is restricted by what the inspector can see and what places the contractor can access. There are many online sites like Monsivais Inspections that provide the services of house inspection.
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There's absolutely no substitute for a well-educated inspector. Experience should be judged by the inspector's involvement in consumer advocacy, by the inspector's commitment to continuing education, by the levels of membership the inspector has in industry associations and by the inspector's certification as a building code inspector.
Any good inspector should be happy to discuss his background and experience levels and the inspector should be willing to provide you with samples of his inspection report. The inspector should create a report that supplies you with the data which you will need to understand so you can ascertain if you have to keep the due diligence analysis on a certain area, component or procedure or whether you're happy with the state of a part, system or component.
If the inspector cannot find an indication of a defect, deficiency or problem, the inspector should have the self-assurance to be able to say that no problem was found and that there were no indications that you should waste your time continuing the due diligence investigation process on that particular part, component or system. The inspector should not produce a report that simply refers you to other specialists or technicians.