Water for building work

You’ll need to apply for a new water connection to supply your site. We’ll fit a meter to the new pipe as standard, to measure how much water is used.

As the usage will be for building water, you'll have an account set up with a retailer automatically. Thames Water won’t bill you directly. Once your account is set up, you can change your preferred retailer. Learn more about having an account with a retailer.

If you’re converting a temporary building supply into domestic use after construction, you'll need to notify your retailer so they can issue a final bill. The retailer will then inform us of the change.

Apply for a new water connection

If it's a household supply, call us on 0800 980 8800 to close the existing account. We’ll then need to set you up an account with a retailer for your building water supply. You’ll need the site address and your meter serial number.

If it's a non-household supply, please contact your retailer.

To measure how much water you use, we’ll need to fit an approved meter.

Your application will need the applicant’s:

• full name, contact number and email address
• full postal address so we can send invoices and updates

To apply, please download the form and email it back to us. Once you’ve submitted your application, we’ll be in touch discuss your requirements further and confirm the next steps.

We always recommend applying for a building water supply before starting construction.

If you started building without a water meter in place, we won’t know how much water you’ve used.

To apply, please download the form and email it back to us.