Thornton Steel has served Southern California’s home building industry for over 30 years. We are proud to be recognized for our outstanding craftsmanship and conscientious efforts.



Builders rely on us for our response time and accommodation of their unique requirements. Quick turnaround while maintaining the highest quality is of utmost importance to TSIW, Inc. Our commitment to meeting production schedules and fulfilling our clients’ goals on time are second to none.


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