Black Diamond Supply

Electrical Supplies For Less

It All Starts With You


We welcome contractors, homeowners, DIY's, handyman, maintenance personnel and anyone in need of electrical products.  Understanding our hard working customers, we are committed to providing quality electrical products at low prices.

Attention to Detail


In today's environment we know you want product fast.  We stock products from all major categories that can support your next electrical project.  Our stocked sales floor eliminates the need to stand in front of a counter waiting for material.   Please stop in today and shop our inventory for your electrical needs!

Back to Basics


Come get to know our knowledgable sales staff and avoid the hassle and inconveniences of big box stores. 


  • Centrally located with easy access to major freeways.
  • Ample parking provided on site!  
  • All major credit cards are accepted.


Contact Us

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We strive to be in constant communication with our customers.  If you have questions or special requests, just drop us a line.  We look forward to serving you!

Black Diamond Supply

922 South 19th Avenue, Phoenix, Arizona 85009, United States

Phone: 602-258-0101


Monday - Friday: 7AM–4PM

Saturday: Closed

Sunday: Closed