Town Hall Address 158 Main Street Thomaston, CT 06787 United States- Litchfield County Website http://www.thomastonct.org Town Clerk 860-283-4141 https://connecticut-townclerks-records.com/User/Login.aspx?ReturnURL=/index.aspx United States Tax Collector 860-283-4271 United States Assessor 860-283-0305 http://www.thomaston.univers-clt.com/ United States Building 860-283-2857 United States Zoning 860-283-8411 United States Water 860-286-5700 United States Sewer 860-283-4887 United States Probate Court Litchfield Hills (PD-24) Tax Adjustment Uniform Fiscal Year- July, January Indices General Index > real property > town taxes > sewer assessment > sewer use Town Hall Hours Monday to Wednesday – 8:00 to 4:00 Thursday 8:30 to 6:00 pm Friday 8:30 to Noon Water Source CT Water Company Sewer Source WPCA County Litchfield