United Utilities Water Limited
United Utilities Water Limited Corporate department provides specific services related to water fittings regulations compliance, focusing on plumbing installations and alterations. Call this number to obtain guidance on Water Supply (Water Fittings) Regulations 1999, schedule compliance inspections, and get technical support for water fittings queries. The lines are open Monday to Friday from 08:00 to 18:00 and on Saturday from 09:00 to 13:00. Many call to discuss Regulation 5 notifications for plumbing projects, including new builds and extensions. While specific wait times aren't provided, it is noted that calling during mid-morning or mid-afternoon can result in quicker responses, avoiding peak congestion.
Updated 15 Dec 2025
Expected outcomes
- Receive compliance advice
- Schedule an inspection
- Get technical support
- Submit Regulation 5 notification
- Clarify notification requirements
Call preparation
Assemble everything before you dial. These requirements are verified by our call analysts and updated as organizations change their scripts.
- Plumbing installation details
- Completed Regulation 5 form
- Technical drawings
- Property address
- Contact details
- Specific plumbing queries
Known issues
Callers to United Utilities Water Limited often encounter long wait times, particularly on Mondays and after public holidays. It is advisable to call mid-morning or mid-afternoon for shorter wait periods. The process of notifying for Regulation 5 can be complex, especially understanding which works require such notification. Customers are encouraged to refer to the official guidance or seek clarification by contacting the water fittings team directly. These issues highlight a need for careful preparation and understanding of the regulatory requirements before placing a call.
