TW Bill Calculator

TW Bill Calculator is an unofficial, independent tool to estimate Thames Water charges. It supports multiple calculation types, including Metered, Unmetered, Assessed, Bulk Supplied (RV), No Access, and WaterSure, plus Sundry Charges. It helps homeowners and landlords understand water charges, plan budgets, and compare scenarios.

Key features include a detailed breakdown of charges, calculation history, up-to-date pricing, and optional ad-free premium. The app provides a clean interface with push notifications for price changes. Note: It is not affiliated with Thames Water.