Self-laying new mains and services
Pre-planning enquiries
We can provide guidance on the layout or design of your project. This service is for 10 or more properties only.
About self-laying mains
You can choose to use a self-lay provider rather than Thames Water to lay mains and service connections.
Self-lay application process
It's easy to apply online once you've got all your supporting documents ready. Before you start, find out everything you need to know.
Design and construction specifications
Thames Water SLP policies
Forms
Additional technical documents
- DS-DRG-WN-02250 - Extension spindle details.pdf | 301 KB
- DS-DRG-WN-02251 - Covers 1 - 150 x 150 and 225 x 225.pdf | 459.3 KB
- DS-DRG-WN-02252 - Covers 2 - 380 x 230 x 125.pdf | 393.8 KB
- DS-DRG-WN-2253 - Covers 3 - 600 x 600 and 675 x 675.pdf | 417.7 KB
- DS-DRG-WN-02254 - Covers 4 - 600 x 450.pdf | 412.3 KB
- DS-DRG-WN-02255 - Covers 5 - 900 x 600.pdf | 416.8 KB
- DS-DRG-WN-02270-01 - Standard tee connection setups valves.pdf | 333.3 KB
- DS-DRG-WN-02270-02 - Standard washout and fire hydrant set up.pdf | 337.8 KB
- DS-DRG-WN-02275 - Large communication pipe.pdf | 342.7 KB
- DS-DRG-WN-0300 - Standard fitting legend.pdf | 239.2 KB