Water Supply Pipe Installations

New builds, annexes, garden buildings and plots being split all need a brand-new water supply laid from the boundary — and often a new connection to the main itself.

WaterTrust contractors install the private-side pipework to water-company specification so your connection application goes through without snags.

Post your water supply pipe installations job — free

Vetted contractors only · up to 4 quotes · your details stay private until matched.

What the work involves

• Trenching or moling a new MDPE supply at the correct depth (750mm)
• Ducting where the route passes under structures or drives
• Installation of the internal stop tap and any boundary boxes
• Coordination with the water company's connection requirements

When you need it

• A new build or conversion needing its first supply
• Splitting one supply into separately-metered feeds
• A garden office, stable block or outbuilding needing water
• Replacing a shared supply with your own dedicated pipe

Water Supply Pipe Installations — common questions

What depth must a supply pipe be?

750mm minimum cover to protect against frost, with 350mm of cover maintained where it enters the building — your contractor handles this as standard.

Can one contractor do the whole job?

The private side, yes. The final connection to the main is made by the water company or their approved contractor; yours prepares everything to spec and can manage the application.

How much does a new supply cost?

It depends almost entirely on distance and surface (grass is cheap to cross; tarmac isn't). Post the job free and contractors quote against your actual route.

Ready to get quotes?

Post the job free — approved contractors across the UK see it straight away.