Answer: Ask the Home Inspector for references. A good Home Inspector should be able to offer at least 6 names of Clients or Realtors they have worked with who will speak on their behalf. Also, a Home Inspector should offer testimonials from previous Clients.
A Home Inspector proud of his/her work and with nothing to hide will make this information readily available. If they have a website (and they should!), they should have their references and testimonials posted there to make it easier for Clients to find them. Some people are not comfortable asking for references because it indicates suspicion or mistrust. So why put them through that awkward process? A reputable and reliable Home and Building Inspector will post their references and their contact information on their website so their Clients can contact them directly without having to ask those awkward questions.
If your Home or Building Inspector cannot or is slow to offer references, better keep looking.