Phone Hours:
Mon - Fri: 5am - 8pm PT
Sat - Sun: 5am - 7pm PT
Mon - Fri: 5am - 8pm PT
Sat - Sun: 5am - 7pm PT
Chat Hours:
Mon - Fri: 5am - 8pm PT
Sat - Sun: 6am - 6pm PT
Mon - Fri: 5am - 8pm PT
Sat - Sun: 6am - 6pm PT
Membership and Warehouse
1-800-774-2678
1-800-774-2678
Phone Hours:
Mon - Fri: 6am - 6pm PT
Sat - Sun: 8am - 5pm PT
Mon - Fri: 6am - 6pm PT
Sat - Sun: 8am - 5pm PT
Chat Hours:
Mon - Fri: 6am - 6pm PT
Sat - Sun: 8am - 5pm PT
Mon - Fri: 6am - 6pm PT
Sat - Sun: 8am - 5pm PT
Costco Business Center Orders
1-800-788-9968
1-800-788-9968
Phone Hours:
Mon - Fri: 6am - 5pm PT
Mon - Fri: 6am - 5pm PT
Chat Hours:
Mon - Fri: 8am - 5pm PT
Mon - Fri: 8am - 5pm PT
Costco Concierge Services Technical Support
1-866-861-0450
1-866-861-0450
Mon - Sun: 5am - 10pm PT
Costco Home Improvement Installed Products
For Lennox HVAC: 1-877-483-6226
For Lennox HVAC: 1-877-483-6226
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
1-800-607-6861
Mon - Fri: 5am - 7pm PT
Sat: 9:30am - 2pm PT
Costco Photo Center
1-855-620-7579
1-855-620-7579
Mon - Sun: 6am - 8pm PT
Costco Travel
Mon - Fri: 7am - 7pm PT
Sat - Sun: 8am - 5pm PT