Costco Customer Service

If you need help accessing the Costco Ess login portal or encountering any difficulties, please call the Costco Customer Service Center. They will help you in resolving your issues and answer your questions. Here are the contact details for Costco’s Help Desk: Costco Support Desk.

Costco.com Online Orders
1-800-955-2292
*including orders delivered by Costco Logistics

Phone Hours:
Mon – Fri: 5 am – 8pm PT
Sat-Sun: 5 am – 7 pm PT
Chat Hours:
Mon – Fri: 5 am – 8pm PT
Sat – Sun: 5am – 7pm PT

Membership and Warehouse
1-800-774-2678

Phone Hours:
Mon – Fri: 6am – 6pm PT
Sat – Sun: 8am – 5pm PT
Chat Hours:
Mon – Fri: 6:30am – 5:30pm PT
Sat – Sun: 8am – 5pm PT

To speak to any warehouse department, such as the Tire Center or Pharmacy, find and call a Costco near you at https://www.costco.com/warehouse-locations

Costco Business Center Orders
1-800-788-9968

Phone Hours:
Mon – Fri: 6am – 5pm PT
Chat Hours:
Mon – Fri: 8am – 5pm PT

Costco Technical & Warranty Services Technical Support
1-866-861-0450

Mon – Sun: 5am – 8pm PT

Costco Home Improvement Installed Products

For Graber Window Treatments: 1-855-742-9130
For Lennox HVAC: 1-877-483-6226
For Sunrun Solar: 1-800-776-0260
For Shaw Flooring & Carpet:1-866-222-9340
For all other items: 1-866-455-1788

Mon – Fri: 5am – 7pm PT
Sat – Sun: 7am – 5pm PT

Costco Mail Order Pharmacy
1-800-607-6861

Mon – Fri: 5am – 7pm PT
Sat: 9:30am – 2pm PT

Costco Travel
1-877-849-2730

Mon – Fri: 5am – 7pm PT
Sat – Sun: 6am – 5pm PT

Costco ESS Password/Username reset
Forgot Username/Password?

Costco ESS New Employee Enrollment
Register Here