Ask a 4 Office representative
how we can help:

Call Us Toll Free: (Our name is our number)

1-800-4Office (1-800-463-3423)

Contact Sales:

1-866-948-7517

Local Service:

Barrie: 705-739-8966
Brantford: 519-752-1200
Burlington: 905-336-4090
Collingwood: 705-444-5228
Hamilton: 905-336-4090
Kingston: 613-384-8676
Kitchener: 519-745-1671
London: 519-637-8111
Mississauga: 905-564-0522
Oakville: 905-825-0484
Oshawa: 905-721-8341
Ottawa: 613-248-1500
St. Catharines: 905-685-4816
Stoney Creek: 905-662-0700
Toronto: 416-463-2423
Windsor/ Sarnia: 800-463-3423

Contact Form

Fields marked with an * are required.









Corporate Headquarters:

425 Superior Blvd, Unit #1 & 2

Mississauga, ON

L5T 2W5

Phone: 905-564-0522

Fax: 905-564-2865


Ottawa Regional Office

2615 Lancaster Rd, Unit #15

Ottawa, ON

K1B 5N2

Phone: 613-248-1500

Fax: 613-248-1501


Kingston Regional Office

593 Norris Court, Unit #4

Kingston, ON

K7P 2R9

Phone: 613-384-8676

Fax: 613-384-7817