Contact Trellis Center

If you have questions about our program or would like to visit Trellis Center please send us an email at

Mailing Address

P.O. Box 897 Kittitas, Washington 98934

Telephone: (509) 968-4040

Please complete the form and we'll get in touch with you within 24-48 hours! Thanks for visiting our website.


Trellis is open Monday through Friday, excluding major holidays or inclement weather.

Summer Hours (June -August)

8:00am - 2:00pm

Winter Hours (September -May)

11:00am - 4:30pm

Inclement Weather Policy

Trellis follows the Ellensburg and Kittitas School district for closures and delays due to snow. You can check their school websites or listen to the local radio for these notices.

Payment and Billing

We currently only accept private pay for our adult program. Invoices will be sent at the end of the month for hours attended and must be paid by the 15th of each month.

Please call (509) 968-4040 to receive the current hourly rate, program fees and registration forms if you are interested in attending our program.