KO JONATHAN

Based in Walnut, California, KO Jonathan is a licensed contractor experienced in ADU construction and development. They hold an active B - General Building license (#922189) verified through California Contractors State License Board (CSLB). They bring 17 years of construction experience to every project. Their ADU services include detached ADU construction and garage conversions. They serve clients throughout Los Angeles County. Call (626) 383 5224 or request a free consultation online.