How do i contact decore customer service? Support: [email protected] New Customer Email: [email protected] Location Details: Our Customer Service, Marketing, Finance, IT, and some of our Sales team find their home in our business office.How do i contact the customer service design center? You can call our Customer Service & Design Center toll free at 866-373-9131, or complete the form below and one of our Customer Specialists will respond to your inquiry. Looking for our Free Design Service?Is decorators supply open in september? Decorators Supply will be closed on Monday, September 6th. Normal business hours will resume on the 7th. We'd love to see how you have implemented Decorators Supply products within your project.