Town Hall Address 703 Washington Street Holliston, MA 01746 United States- Middlesex County Website http://www.townofholliston.us/ Town Clerk 508-429-0601 http://www.townofholliston.us/town-clerk United States Assessor 508-429-0604 http://www.townofholliston.us/assessors-office Mon, Wed-Thurs: 8:30-4:30, Tues: 8:30-7:00, Fri: 8:30-1:00 703 Washington Street, Room 107 Holliston, United States Tax Collector 508-429-0602 Mon, Wed-Thurs: 8:30-4:30, Tues: 8:30-7:00, Fri: 8:30-1:00 703 Washington Street, Room 106 PO Box 6737 Holliston, United States Fire District 508-429-2323 United States Water 508-429-0603 United States Town Hall Hours Mon, Wed-Thurs: 8:30-4:30, Tues: 8:30-7:00, Fri: 8:30-1:00 County Middlesex