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California On-Site Welding provides expert AWS-certified welding services across Riverside, San Bernardino, Orange County, San Diego, & Los Angeles. With over 40 years of experience, we specialize in structural welding, pipe welding, steel welding, column repair, and heavy equipment welding. Our mobile welding service is available 24/7, ensuring fast, reliable solutions for industrial, commercial, and residential clients. Whether you need emergency repairs or precision welding, trust our expertise to get the job done right.

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