J. Harrington Construction (buildingsupplystore) in Pasadena, CA provides construction materials and equipment to contractors, architects, and designers, offering a comprehensive selection of products and expert advice. We are located in Pasadena, CA, serving the construction industry.
Operator computes a Health score every night at 2 am HST. It is the one number that tells you if this shop is winning, losing, or steady. Here is how J. Harrington Construction broke down on May 1, 2026.
Operator ranks every building supply store in Pasadena every night at 2 am HST using reviews, response rate, and local market share.
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