New water connections for commercial premises

Find out how to get a new water connection for your commercial premises and make sure your private pipework is installed correctly before we connect it to our water main.

 

How to get a new connection for a commercial premises

Before you begin, make sure you know who supplies your water and wastewater services. You check this easily on the Water UK website.

Submit your application, any supporting documentation and pay the application fee.

You’ll need to show us:

*A non-permeable surface is any surface that doesn’t allow water or other liquids to pass through it.

Common examples of non-permeable surfaces include:

Once we’ve got your application, we’ll complete checks on our network to make sure we’re able to supply water to your desired location.  

If we have everything we need from you, your application will be progressed to the next stage and you’ll be assigned a dedicated Customer Connection Manager – they’ll be your point of contact from this point onwards. 

If we need extra information to progress your application – we’ll be in touch to support you.

Your dedicated Customer Connection Manager will call you to arrange for one of our team to visit your site on a date and time that works for you.  

Whilst we’re on site, we’ll check your plans and assess the work needed to get you connected. Afterwards, we’ll send you a drawing and supporting guidance so you know exactly where and how to lay your private supply pipe.  

As well as a drawing and supporting guidance, we’ll send you a tailored quote for making the water connection. Your quote comes with an acceptance form that you’ll need to sign when you’re ready for us to inspect the private supply pipe.

You can now lay your private supply pipe from your premises to the boundary in line with the plans and supporting guidance we left with you when we first visited your site.

Read our guidance on how to install a private water supply pipe on a non-household property.

 

Now that you’ve laid your supply pipe you can now pay your quote and send us your signed acceptance form. This tells us that you’re ready for an inspection and want us to make the water connection for you.  

Once we’ve received your signed acceptance form and you make your payment we’ll call you to book a suitable date and time to inspect the pipework you’ve laid.

We’ll visit on the date agreed to check your pipework has been laid correctly.

We’ll make the new connection to our water network and the supply can be used.  

We aim to connect you within 21 days of the passed inspection however connections through private land, or locations where traffic management is needed may take longer (this can be up to three months depending on highways permits or land entry requirements).  

Once the connection is made and a water meter is installed; we’ll register the connection and customer details and pass them over to the retailer you had chosen when you first applied (where applicable).

Use an approved plumber

A Water Industry Approved Plumber (WIAPS) is fully qualified and trusted by UK water companies to work to the highest standards. They’re trained to meet water regulations, carry the necessary insurance, and can certify their own work - saving you time and hassle.

Choosing a WIAPS plumber means your installation is safe, legal, and done right the first time.

Instead of a physical site inspection, you’ll just need to provide evidence of your contractor’s accreditation and photos showing that the private supply pipe has been laid to the agreed point outlined when we visited your site. 

Choosing a retailer

We’re not responsible for sending bills for commercial premises so you’ll need to set up an account for billing with a retailer. Retailers manage all billing, meter reading and account queries for commercial customers.

You can choose a retailer ahead of your new water connection – just tell us on your application. If you don’t tell us on your application, you’ll be able to choose once your new connection has been registered. If you don’t choose, you’ll be assigned a retailer automatically.​

If you need any help around billing non-household water supplies, visit the Open Water website. 

Things to consider before you apply

It’s important to check the location of our existing water mains before applying.

Knowing this upfront helps you plan the most cost-effective way to connect. Keep in mind: the further the main is from your property, the higher the cost for materials and labour.

If you’d like to know where our water and wastewater pipes are, you can request a water or sewer map.

Most commercial premises need both a water and sewer connection.

You must get approval before connecting to our sewer. Once approved, you can use your own contractor to carry out the work.

If you need a new sewer connection, you can apply for both water and sewer connections at the same time.

Before we can make the new connection, you’ll need to show us that you have permission to work on land that’s owned by someone else.

It’s up to you to arrange for your private supply pipe to be laid – you can choose who does this work for you.

Here are your options:

If you need the connection for welfare facilities (for example toilets and washrooms) consider applying for a 25mm to 32mm connection.

If your water demand exceeds this, you may need a 50mm or larger connection.

If you’re unsure or need extra help choosing the right size connection before applying - contact us so we can understand your requirements.

If your business discharges anything other than domestic wastewater into the public sewer, you’ll need our consent before you can discharge trade effluent into our sewers.

This helps keep our sewer network safe, protects treatment processes, and the environment. It also safeguards health and safety for workers too.

Read our installation guidance

View our supporting guidance for making a new water connection to a commercial premises

Apply for a new connection for a commercial premises

Once you know the connection size you need, you can apply for your connection to our existing water network. Application fees are required.

If you need help finding the right application form to use, get in touch with our team - they're here to help.