Contact

Our business hours are 9 AM to 4:30 PM, Mountain Standard Time, Monday through Friday. (Arizona does not observe Daylight Time.) Please call if you have any questions.

Diamond H Company, LLC
doing business as Quick 220^® Electrical Systems
428 East Thunderbird Road #331
Phoenix, Arizona 85022 USA

Telephone: 1-800-347-0394 (US & Canada) or 1-602-938-6057
Fax: 1-602-862-0215
Email: sales@quick220.com