Contact Us – Developmental Services Ontario Hamilton-Niagara

Contact Us

You can contact us by phone, email, fax or mail anytime you have a need for information about adult developmental services and/or you wish to apply for services. Our hours of operation are Monday to Friday, 8:30 am – 4:30 pm except on statutory holidays.

Your call/request is important to us! When you call, email or fax us we will try and respond to you within one business day. If you call us, a receptionist will direct your call to the most appropriate person. While we do our best to take yours at the time you call, we are not always available (e.g., we may be meeting with people or on the phone with someone else). We aim to return all calls the day they are received but depending on the volume of calls, it may be the next business day when we call you back.

While the main office is located in Hamilton, we have local sites in each of the communities in our region. For people who prefer to connect with us in person, we have walk-in hours (no appointment needed) for each of our sites (please see below).

How to Reach Us:

Toll Free Phone Number:

1-877-DSO-HNR4 / 1-877-376-4674

Toll Free Fax Number:


TTY and Interpretation Services

Calling Via Bell Relay Service (TTY)

Contact Hamilton can be contacted via TTY by placing a Bell Relay call.

  1. Dial 711.
  2. Enter 905-570-8888
  3. Type GA.

The Bell Relay operator will dial the number for you, and will let you know as soon as you are connected (i.e. “Contact Hamilton is on the line, go ahead.”)

You can leave messages on answering machines or voicemail systems with the Bell Relay service. If you do this, please mention that you have called using the Relay service.

Both TTY service and interpretation services are available upon request. If you require either of these services, please call any of the phone numbers listed below and identify your need. We will be happy to help you.

Office Site for Hamilton (Main Office):

DSO Hamilton-Niagara Region, Hamilton Site
C/O Contact Hamilton, 140 King Street East, Suite 4, Hamilton, ON, L8N 1B2
Phone: 905-297-5604
Fax: 905-667-0671
Toll-Free Fax: 1-844-777-6663
Walk-in hours: Monday to Friday, 8:30 am – 4:30 pm

Office Site for Brant:

DSO Hamilton-Niagara Region, Brant Site
C/O Contact Brant, 643 Park Rd. N., Brantford, ON, N3T 5L8
Phone: 519-512-0010
Fax: 519-756-6548
Walk-in hours: Friday 10:00am-12:00pm

Office Site for Niagara:

DSO Hamilton-Niagara Region, Niagara Site
C/O Contact Niagara, 23 Hannover Drive, Unit 8, St. Catharines, ON, L2W 1A3
Walk-in hours: Tuesday 9:30am-11:30am

Office Site for Haldimand and Norfolk, Six Nations and New Credit:

DSO Hamilton-Niagara Region, Haldimand Norfolk Site
C/O Haldimand Norfolk REACH, 101 Nanticoke Creek Parkway, P. O. Box 5165, Townsend, ON, NOA 1SO
Walk-In hours at our Haldimand office are unavailable until further notice. Please call DSO Hamilton-Niagara Region to speak with an access coordinator. We apologize for any inconvenience.


Do you need directions to get to one of the DSO HNR office sites?



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