REASONS TO CHOOSE CORNERSTONE INSPECTIONS Not sure if we’re the right home inspection business for you? Consider the following: We offer mold, radon testing and bacterial water testing – let us help keep your family safe. We have four licensed home inspectors, one who is a Certified Master Inspector, the highest designation from the Master Inspector Certification Board . We write thorough reports – our detail-oriented inspectors take their time and your reports are electronically delivered within 24 hours.