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High Water Bill

Check my bill
Leak test
Read your meter
Usage calculator
Leak allowance

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Lines open Monday to Friday, 7:30am to 6:30pm

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Check your water bill

Check your water bill

Six short questions about your bill and your home. Your answers stay on this device and nothing is sent anywhere.

Kept in this tab only

The checker needs JavaScript. You can still read the four reasons a bill jumps, try the meter leak test, or call ADI on 0333 567 2647. Lines open Monday to Friday, 7:30am to 6:30pm.

Is your home on a water meter?

If it is, your bill shows two meter readings and the water used in cubic metres (m³).

Yes, I have a meterNo, I pay a fixed chargeI’m not sure

Were either of your last two bills based on an estimated reading?

Look at the letter beside each reading on your bill: usually A for an actual reading, E for an estimate and C for one you sent in.

Yes, the last bill was estimatedYes, this new bill is estimatedNo, both used real readingsI don’t know

Compared with your last bill, how much water did you use each day?

Bills cover different numbers of days, so compare the water used per day. The helper below works it out from your bills.

Much more (half as much again, or more)A bit moreAbout the same, or lessI don’t know

Work it out from my bills

Each bill shows the water used in cubic metres (m³) and the dates it covers.

This bill

Water used (m³)

Days covered

Last bill

Water used (m³)

Days covered

Has anything changed at home since your last bill?

Choose all that apply.

More people living here, or guests staying a whileMore time at home, such as working from homeA new shower, washing machine or dishwasherGarden watering, a paddling pool or a hot tubBuilding or decorating workNone of these

Have you noticed any of these?

Choose all that apply.

The meter moving when nothing is onA hiss or a rushing sound when everything is offWet or soft ground, or a greener strip of grass, between the pavement and the houseDamp patches on floors, walls or ceilingsLower water pressure than usualA toilet that keeps running or trickles into the bowlA dripping tap or showerNone of these

Have you tried a meter test yet?

That means switching everything off, reading the meter, waiting a while and reading it again.

Yes, and the numbers movedYes, and the numbers stayed the sameNot yet

How this check works

It asks the questions a water company or a leak engineer would ask first, in the same order, and points you to the most likely cause.

You will see which of your answers led to the result, and what to do next. It points to the likely cause, and only a visit can confirm it.

Your answers are kept in this browser tab until you close it. Nothing is sent to us or anyone else.

Already sure water is escaping? Test your meter or read what happens when you call ADI.

High Water Bill

High Water Bill is run by ADI Leak Detection, a trading name of ADI Leak Solutions Ltd, a leak detection company. When the checks here point to a hidden leak, we suggest calling ADI. The guidance is general and cannot replace a visit.

0333 567 2647, Monday to Friday, 7:30am to 6:30pm.

Tools and guides

Check my bill
Leak test
Read your meter
Usage calculator
Leak allowance

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Facts checked 25 September 2026

© 2026 ADI Leak Solutions Ltd. Company number 15870765. Registered office Unit L, BPI House, Cores End Road, Bourne End SL8 5AS.