With 39 years of experience in the real estate appraisal industry, Gillis Appraisal Services is a trusted leader in providing accurate, reliable, and unbiased residential property valuations throughout San Luis Obispo County (SLO County) and Southern Monterey County serving San Antonio Valley. For nearly four decades, Tim has proudly served homeowners, lenders, real estate professionals, and investors with expert insight into the diverse and ever-changing real estate markets across both regions.

As a Certified Residential Appraiser, Tim is committed to upholding the highest professional standards while staying current with market trends, technology, and appraisal regulations. Whether you need an appraisal for a home purchase, refinance, estate settlement, divorce, tax assessment appeal, or private valuation, our extensive experience and strong understanding of both SLO County and Southern Monterey County serving San Antonio Valley neighborhoods ensure that every report is thorough, precise, and well-supported.

Our mission is simple:
To deliver honest, high-quality appraisal services that empower clients to make confident real estate decisions.