Emergency call-out
Burst Pipe Repair: Stopping the Flow and Making Good
Rillwater Plumbing & Heating attends a burst pipe across sixteen London boroughs, 24 hours a day, with directly employed engineers. Call 07446 375079 now and an engineer talks you through closing the stopcock while another travels. The split is then cut out, the pipe cut back to sound material, the joint remade, and the work photographed open before anything is covered.
- Close the stopcock — usually under the kitchen sink.
- Open the cold taps to drain the pipework down.
- Move what you can out from under the leak, and photograph it.
- Directly employed engineers, not subcontractors
- Fixed price agreed before work starts
- No charge for the visit if you decline the quote
- Written workmanship guarantee on completion
Are you in an area we attend?
Enter a postcode and we will tell you before you call.
We attend 16 London boroughs: Islington, Camden, Westminster, Hackney, Kensington and Chelsea, Hammersmith and Fulham, Wandsworth, Lambeth, Southwark, Lewisham, Tower Hamlets, Greenwich, Croydon, Bromley, Barnet, Ealing.
How do I stop the water from a burst pipe?
Close the internal stopcock, then call 07446 375079. The stopcock sits under the kitchen sink in most London homes and turns clockwise to shut. Open the lowest cold tap in the property to drain the rising main. Switch off the lighting circuit in any room taking water.
- Turn the internal stopcock clockwise to its stop.
- Open the lowest cold tap in the property, then the rest, until the flow dies.
- Switch off the lighting circuit at the consumer unit in any room water has reached.
- Call 07446 375079 and describe where the water is appearing.
The rising main is the cold supply running upward from the internal stopcock to the fittings above. Draining it from the lowest tap uses gravity to empty the run the closed valve no longer feeds, which is why the order of the taps matters and the order of the rooms does not.
How soon can an engineer reach a burst pipe?
Give the postcode and the property type on the call, and the arrival window is confirmed before you hang up. The line answers 24 hours a day across sixteen London boroughs. Distance from the engineer’s current job sets the window, and the charge is stated before anyone travels.
Property type changes the answer as much as distance does. A ground-floor flat with the stopcock under the sink is one visit. A third-floor conversion whose isolation valve sits inside a communal riser cupboard needs the managing agent reached first, and that call starts while the engineer is still driving. Saying which of the two applies, at the point of booking, is what keeps the window accurate.
Where has the pipe burst?
Look first at the coldest run in the property — a loft, an outside wall, an unheated garage or a suspended ground floor. Trace the water upward to its highest wet point. Water runs along a joist before it drops, so the stained ceiling sits away from the split.
| Location | Why it splits there | What you see |
|---|---|---|
| Loft, above the insulation line | Tank feeds and cold runs sit in unheated air with no heat from below | Water at a first-floor ceiling, spreading fastest of the four |
| Outside wall, behind plaster | The run sits on the cold face of the wall rather than inboard of the insulation | A damp stripe on a wall following the line of the pipe |
| Unheated garage or outbuilding | No heating, and an outside tap feed left charged through winter | Water on a garage floor and a drop in pressure at the taps |
| Suspended ground floor void | Air moves under the boards through the airbricks and reaches freezing | Cold, cupped floorboards and water tracking to the lowest point |
Trace upward rather than outward. Water leaves the split, runs along the underside of a joist to the first low point, and drops there, so the stain on a ceiling marks the low point and not the fault. The highest wet timber in the void is the closest thing to the split that is visible without opening anything.
The water stops the moment the stopcock closes. What happens to the pipe after that decides whether the same joint fails again this winter, and it is the part of the job nobody watches.
What does a permanent burst pipe repair involve?
Cut the split out, cut back to sound pipe on both sides, and remake the joint in the material the run is made from. A clamp holds the supply on only while parts are collected, and it comes off on the same visit. Nothing is boxed in until the finished joint is photographed.
- Isolate and drain the section, then dry the pipe until a joint can be made on it.
- Cut the split out and keep cutting back until the pipe wall is sound on both sides, because a freeze split runs further along the wall than the visible opening.
- Remake the joint in the material the run is made from — copper into copper, plastic into plastic — with a fitting rated for the pipe and the pressure.
- Refill, vent and hold the section at working pressure long enough to prove the joint under load rather than under a trickle.
- Photograph the finished joint open, then insulate the run before any board, plaster or boxing goes back.
Cutting back is the step that separates a repair from a patch. Ice expands along the bore and stresses the pipe wall for some distance either side of the point that actually opened, so a joint made hard against the visible split sits in metal that has already been weakened. A repair coupling squeezed onto a wet, unstressed-looking pipe holds until the next cold night.
What does a burst pipe repair cost?
Ask for the attendance fee and the hourly rate on the call, before the engineer travels. A fixed quotation is agreed before any work starts, and declining that quotation costs nothing. Out-of-hours attendance is charged at a separate rate, named in the same document.
| Charge line | What you pay | What moves it |
|---|---|---|
| Attendance and diagnosis | Inside the quoted figure | Nothing. Attendance is quoted with the job. |
| Quotation declined | £0 | Nothing. The visit is not charged for when the quotation is declined. |
| Repair labour and fittings | Named on the quotation before we travel | Pipe material, how much of the run has to be exposed, and the hour of the call. |
| Making good plaster or boarding | Quoted as a separate line | Whether the repair is inside a wall, a floor void or a boxed riser. |
⚠ No attendance fee and no hourly rate appear on this page. Rillwater holds no invoiced figure yet, and the brief’s rule is that the sentence naming a figure is cut rather than filled with somebody else’s number.
Will my insurance cover the water damage?
Photograph the split and the damage before anything is moved or dried. Sudden water damage from a burst pipe is the category an insurer calls escape of water. The separate clause covering the cost of finding the leak and reinstating what was opened up is called trace and access.
- Photograph every wet surface before a towel, a dehumidifier or a loss adjuster touches it.
- Record the date and the hour the water was first seen, because both go on the claim form.
- Read the policy schedule for the two clause names above and their limits.
Whether either clause applies to your property, and to what limit, is stated on your own policy schedule and must be read there.
Why did the pipe burst?
Check what the outside temperature did in the seventy-two hours before the water appeared. Water expands as it freezes and splits the pipe wall, then discharges at thaw rather than at freeze. Corrosion in old copper, a fixing driven through a concealed run and water hammer account for the rest.
- Freeze and thaw. Ice expands by roughly nine per cent of the volume of the water it forms from, and the pipe wall opens under that expansion. The water arrives at thaw, hours or days after the cold night that caused it.
- Corrosion in old copper. Pinholes form from the inside out where water chemistry and pipe wall interact, and the first sign is a weep rather than a burst.
- A fixing driven through a concealed run. A screw or a nail into a floor or a wall pierces the pipe and often seals itself, then leaks weeks later when the fixing corrodes.
- Water hammer. A fast-closing valve stops a moving column of water dead, and the shock loads every joint on the run repeatedly until one of them fails.
What guarantee comes with the repair?
Ask for the written workmanship guarantee at the end of the visit. Rillwater Plumbing & Heating issues one in writing on completion of every repair. The fixed quotation is agreed before work starts, and there is no charge for the visit if that quotation is declined.
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Rillwater Plumbing & Heating
32 Northampton Square, London EC1V 0ES
Telephone 07446 375079
Mo-Su 00:00-23:59
Telephone answered 24 hours for emergencies.