The following is a comprehensive list of Home Depot contact numbers that include "800" numbers so it really depends on what service you are looking for:
• The main number for customer care which includes calls about merchandise, services and stores is 1-800-466-3337. This is operational Monday to Friday 8am - 8pm, Saturday 9am - 6pm and Sunday 12pm - 6pm.
• There is also another number for general customer service queries, seven days a week (apart from Christmas day) between 6am and 2am. This is 1-800-430-3376.
• If you have a query about major appliances, ring 1-800-455-3869 seven days a week between 6am and 2am.
• The customer accounts number for those living in Canada is 1-800-747-3787. This number is in use Monday - Saturday, 6am - 1am and Sunday 7am - 12 midnight.
• Commercial revolving contact in Canada, Monday - Friday, 7am -11pm and Saturday - Sunday, 9am-7pm is 1-800-668-5336.
There is also the option of sending an email by logging on to the company's website and filling out an online form. Alternatively, you may be able to find your answers by having an online chat with an adviser.
More information can be found at this link: http://www.homedepot.com/webapp/wcs/stores/servlet/ContentView?pn=Contact_Us&langId=-1&storeId=10051&catalogId=10053