Close Search
Search
Search Menu Toggle

Live Service Alerts (1)

Interruption to your water supply - Amersham - HP7

You are here : Development Experience > Water mains

You can apply for an extension or diversion of an existing water main for your development using our application form. Please complete the sections relevant to your development

When applying with us, consider whether you would like for the new house(s) to be water efficient. If so, you could be entitled to a water efficiency discount. Plus, it is vital you understand the relevant fire protection and requirements for your site.

Our charges are carefully reviewed and published on an annual basis. Find out more about our latest charges.

Apply for a new water main

 

Calculate and pre-plan your application

Estimating your application fee
New connections cost estimator

 

Our Process

We aim to provide you with a cost advice within 28 calendar days of receiving your application.

Application

Arrow icon

1. Application

Submit your application.

2. Confirmation

We confirm we received everything.

3. Design, survey cost

We work on the design, survey and cost.

4. Cost advice

We send you the cost advice.

5. Proceed?

You decide if you want to proceed.

  1. Submit your Section 41 application for a new or extended water main
  2. Within 5 calendar days of receiving your application we will confirm in writing that we have everything needed to answer your enquiry.
  3. The design works are carried out over a period of 28 calendar or 42 calendar days if your scheme is classed as extraordinary (we will confirm this in writing).
  4. 28 calendar or 42 calendar days after we have received the full and complete information you will receive your cost advice.
  5. You decide if and how you wish to proceed with the New Mains Requisition (Affinity Water Installation or Self Lay)

Payment and installation of new main by Affinity Water

Arrow icon

1. Payment & offer letter

Complete offer letter and make payment.

2. Programme works

We programme your works.

3. Pre-start meeting

Pre-start meeting held with you.

4. Make the site ready

Make your site ready for a check.

5. Site ready check

Site ready check.

6. Lay water main

We lay the water main.

  1. Review and accept your quote on the My Developments portal, and make payment.
  2. After your acceptance, agreement and payment is received, we will programme your works to be completed within 90 calendar days of payment or later if requested. We shall contact you to discuss the installation date, and arrange a pre-start meeting. A guide to our process can be found here (PDF 360KB).
  3. We arrange a site pre start meeting where we will discuss our requirements and confirm the installation date.
  4. Make your site ready for our installation (PDF 164KB).
  5. Two days before the install date of the water main, we will inspect your site (PDF 180KB) to ensure it is ready for our works.
  6. We will attend site and carry out our mains laying works.

Planning

Arrow icon

1. Payment

Send payment for plots against service cost.

2. Call off plots

Contact our team to call off the plots.

3. Inspection

We inspect 2 days before installation.

4. Connections

We attend and carry out connections.

  1. Send your payment for the appropriate plots against your service cost.
  2. Contact our team to request your required plots.
  3. You lay your pipework (onsite) (PDF 147KB) ready for our visit
  4. Two days before install we will inspect your site to ensure you're ready for our works. All work will need to be completed to our boundary box installation specification (PDF 392KB).
  5. We will attend site and complete the works.
View our forms and guides
View our FAQ's
Enable Recite