California contractor license
NATIONAL ACID-PROOFING INC
- C29 Masonry
NATIONAL ACID-PROOFING INC is a C29 Masonry contractor in Palos Hills, licensed in California for 58 years (since 1967). As of Mar 20, 2026, the license is active with an expiration date of Mar 31, 2027 on record and a license bond is on file.
NATIONAL ACID-PROOFING INCC29 Masonry · checked Mar 20, 2026
ActiveLicense number#250911
Licensed sinceDec 6, 1967
Years licensed58 years
Expiration on recordMar 31, 2027
City and countyPalos Hills
License bondOn file
ProjectsNone on file
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Source: California Contractors State License Board (CSLB) and City of Los Angeles permit records. Last updated Mar 20, 2026.