You have a choice
When arranging water for your site, we want you to choose the installer that best suits your needs and timescales. This might not be us – independent ‘self-lay providers’ (SLPs) could be able to offer cost-effective terms and fit in better with your construction programme, and might also offer the installation of multiple utilities. SLPs receive the same level of service from us as all other jobs, and they’re accredited to all the standards required for us to adopt the pipework at completion. You can find out more here.
Check network capacity
For larger developments we’ll need to check we have capacity in our network to supply your new development. You should ask us to do this by making a ‘pre-planning enquiry’ as early as you can, ideally even before you apply for planning permission – this will minimise the risk of delays later on.
Estimate our charges
If you’d like to estimate the charges for your work, you can do this by referring to our charging arrangements.
Get a quote
You should apply for a quote if:
- you have planning permission
- you intend to pay the quote within the next 180 calendar days (otherwise it will expire)
I need a new water main and service connections
Please complete our PDF application form. After you submit your application, within 28 calendar days (or 42 calendar days for sites with more than 500 plots, or which are technically challenging) we’ll send you a quote for the new water main only, and will explain your option to use a self-lay provider. We’ll ask you to sign and return a copy of the quote, indicating whether you’d like to use a self-lay provider or want us to do the work.
We’ll liaise with you regarding the quote for the new service connections, sending this on separately at a later date when you let us know you are ready for it. This prevents it from expiring while the new water main is being constructed.
I need new service connections on an existing water main
From 13 April 2019, you’ll need to pay upfront application and design fees when applying for new service connections on an existing main. These cover our initial costs including administering and preparing your quote and finalising the technical solution required. They’re non-refundable, but will be deducted (excluding VAT) from the total balance due when you accept your quote.
Paying upfront fees by BACS, CHAPS or cheque
After you submit your application and pay the upfront fees, we’ll send you a quote within 14 calendar days.
Paying upfront fees by debit or credit card
You can apply online. After you submit your application and pay the upfront fees, we’ll send you a quote within 14 calendar days.
Important technical notes
It's your responsibility to ensure that the main from which any firefighting supply is being taken is capable of providing your firefighting requirements. You'll need to request that a fire protection company, in accordance with advice from the local fire authority, undertakes a flow and pressure test from the nearest available fire hydrant or washout point on the main for that the supply. The test will establish if the main has the required flow and pressure for your fire protection needs. A network service technician from Thames Water will need to be present to operate the valves – please call us on 0800 316 9800 to arrange this.
Internal-fit water meters
While it is our strategy for all internal meters to be fitted with an AMR radio to enable remote reading, all meters must still be able to be read visually. Consequently they must be fitted where they can be easily read and accessed for installation, maintenance or exchange, and must conform to health and safety requirements. For this reason, we won’t allow any apparatus to which we may require access to be fitted in the ceiling void. There must also be no obstruction preventing the meter being read by a customer, meter reader or any other Thames Water personnel. The meters we provide will therefore need to be fitted within a common area on each floor, or within your plant room.
Make a payment
If you've already received a quote and need to make a payment, use the link below.Pay now
Book a Water Regulations inspection
When laying new water pipes up to the property boundary for us to connect to, you’ll need to comply with the Water Supply (Water Fittings) Regulations 1999. These are legal requirements which set out how plumbing systems and fittings must be installed and maintained. You’ll need to ensure, for example, that:
- The pipework is 750mm to 1,350mm below ground level
- You’ve run the pipework from the boundary to where it enters the building, with both ends of the duct sealed
- You have an internal stop valve fitted within the property
- Your pipework matches the size shown on our quote
We advise you to appoint a reputable plumber who’s familiar with the standards required. One way of doing this is to employ a member of an approval scheme, such as the Thames Approved Plumbers Scheme, which checks that plumbers are qualified and have the required knowledge of the Water Regulations.
If your plumber is a member of an approval scheme, they’ll be able to provide a certificate of compliance and we won’t need to inspect the work. Otherwise we’ll need to carry out an inspection to make sure the work meets the requirements of the Water Regulations.
To arrange a Water Regulations inspection, please call us on 0800 009 3921.