• Bill Howe Plumbing (San Diego, Calif.) was voted as Best San Diego Plumber by the San Diego Union-Tribune.

• Northwood Heating (Woodinville, Wash.) opened a satellite branch in Tacoma, Wash.

• Zipper Air Conditioning & Heating Co. (Louisville, Ky.) was purchased by Defender Security Co. (Indianapolis).

Publication date: 9/16/2013

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