Castellan Service Associates

Castellan Service Associates (CSA) is a veteran-owned business serving Central Maryland and Northern Virginia that provides comprehensive home and auto maintenance services. Our subscription-based model covers routine home maintenance and auto servicing, acting as a single point of contact to avoid major repairs and ease vendor scheduling issues. Unlike standard handyman or single-system vendors, CSA maintains complete situational awareness of your property. We are strictly focused on system maintenance, efficiency, and longevity; providing homeowners with confidence in knowing their largest investments are being taken care of.