Website
Install App
Toll Free Numbers
1-800-774-2678
(For Customer Support)
IVRS Menu:
- Press 1: For information including membership, Costco executive 2% reward, and Costco services
- Press 2: For information on the Costco city visa, Costco shop card and payment options accepted at Costco
- Press 3: For Costco.com orders, returns and all other website enquiries
- Press 4: For warehouse product and return information or for your local Costco phone number, business hours and address
- Press 5: For Costco travel
Quick Links
Important Contact Details
| Sr.No. | Service | Contact No. |
|---|---|---|
| 1 | Costco.com Online Orders (including orders delivered by Costco Logistics) | 1-800-955-2292, Mon-Fri: 5am-8pm PT, Sat-Sun: 5am-7pm PT Chat Hours: Mon-Fri: 5am-8pm PT Sat-Sun: 5am-7pm PT |
| 2 | Membership and Warehouse | 1-800-774-2678, Mon-Fri: 6am-6pm PT, Sat-Sun: 8am-5pm PT Chat Hours: Mon-Fri: 6:30am-5:30pm PT, Sat-Sun: 8am-5pm PT |
| 3 | Costco Business Center Orders | 1-800-788-9968, Mon-Fri: 6am-5pm PT Chat Hours: Mon-Fri: 8am-5pm PT |
| 4 | Costco Technical & Warranty Services Technical Support | 1-866-861-0450, Mon-Sun: 5am-8pm PT |
| 5 | Costco Mail Order Pharmacy | 1-800-607-6861, Mon-Fri: 5am-7pm PT, Sat: 9:30am-2pm PT |
| 6 | Costco Travel | 1-877-849-2730, Mon-Fri: 5am-7pm PT, Sat- Sun: 6am-5pm PT |
| Costco Home Improvement Installed Products | ||
| Timing: Mon-Fri: 5am-7pm PT Sat-Sun: 7am-5pm PT |
||
| 7 | For Graber Window Treatments | 1-855-742-9130 |
| 8 | Infinity from Marvin Replacement Windows | 888-462-2969 |
| 9 | For Lennox HVAC | 1-877-483-6226 |
| 10 | For Sunrun Solar | 1-800-776-0260 |
| 11 | For Shaw Flooring & Carpet | 1-866-222-9340 |
| 12 | For all other items | 1-866-455-1788 |
Return/Refund And Replacement
- For any query/complaint regarding return/refund and replacement you can contact the customer support team.
- For an immediate refund, including shipping and handling fees, return your purchase to any Costco warehouse.
- Refunds for online purchases returned to a warehouse may differ from online payment methods. If possible, it will be returned to the original card used.
- For more information regarding return/refund and replacement please read .
Offices Address
| Sr No. | Office | Address |
|---|---|---|
| 1 | Corporate Headquarter | 999 Lake Drive Issaquah, WA 98027 |
| 2 | Mailing Address | Costco Wholesale, PO Box 34331, Seattle, WA 98124. |
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