It’s up to you. Some inspectors add their commercial services to an existing company, while others prefer to keep it separate. Each approach has pros and cons, which are reviewed in the following article.
NOTE: The main drawback to starting a separate business is its effect on the workload (i.e., financials and website maintenance), start-up costs (branding, marketing material, website, etc.), and internet marketing. The last-mentioned concern is for Google My Business which only allows one business listing under a single address unless the businesses are under unrelated business categories (i.e., inspections and clothing alterations).