About
Based in Ontario, California, J&N Maintenance Services is a licensed contractor experienced in ADU construction and development. They hold an active B - General Building license (#1147841) verified through California Contractors State License Board (CSLB). Their ADU services include detached ADU construction and garage conversions. They serve clients throughout San Bernardino County. Call (909) 389 8810 or request a free consultation online.
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Contact Information
📍1030 N MOUNTAIN AVE STE 189, Ontario, CA 91762
Business Details
License #1147841
Experience1 years