Colonial Electric Supply - Industry Directory Are you already on the list? Do you need to update your information? Click On the button below and Fill out the form to request edits to your listings or to be included in our Directory. Click Here Contact Admin [contact-form-7 id=”37131″ title=”Contact form”] Go back to directory. Add to Address Book. Colonial Electric Supply Colonial Electric Supply Work 1902 Centre Ave Reading PA 19605- work Work Phone: 610-374-2134work Work Fax: 610-373-2427workfax No Image Available