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Mark Gilbertson

Owner / Inspector


Montana Home Inspector – HI0165

35+ Years of professional experience

Fully Insured


ASHI® (American Society of Home Inspectors) – Certified Inspector #259510

ASHI® – BVI (Background Verified Inspector)

Montana Third Party Inspector – MT Department of Labor and Industry – Certified – 06152019

NRPP® Residential Radon Measurement & Analytical Services Provider – ID #108412 RT

AARST – The American Association of Radon Scientists and Technologists

Multi-Family Radon Measurement Certificate (MFM)

Radon Resistant New Construction Training (RRNC)

Soil Gas Mitigation Compliance Inspector (SGM-CI)


NHIE® (National Home Inspector Examination®) – Passed

The Ohio State University – Bachelor of Science

University of Minnesota – MURC Radon Measurement Certification

Rutgers University – RRNC (Radon Resistant New Construction) Certification

Kansas State University – Radon Mitigation Compliance, Radon Physics


GAR (Gallatin Area  REALTORS®) – Affiliate Member

Montana Association of REALTORS® – Affiliate Member

Patents – Awarded 75 U. S. and International Patents