CR0

Boiler Repair in Croydon

Gas Safe and G3 qualified engineers across CR0, 24 hours a day.

Answered 24 hours a day by a technical customer service member.

What is the boiler doing?

In CR0 the first question is whether the property has a gas supply at all, because a great many of the newer flats do not.

Gas Safe registered engineers
An engineer as soon as we can, booked around you
Cylinder and unvented systems as well as combis
Parts guaranteed for a year, rates agreed before work starts

No heating or hot water right now? Call 0203 868 6134. We will tell you the earliest realistic slot rather than the one you want to hear.

Google Reviews

"Engineer excellent and very time efficient."
Fiona G.
"Very polite and respectable engineer...had two other heating company that struggle to find the issue with my boiler but ASAP repaired it on the same day thanks absolute life saver"
JA Morris
"He was very professional tidy and polite. Would recommend!"
Anna M.

Prefer we call you? Request a call back

Two details to start. Add your postcode and whether there is a cylinder in an airing cupboard and we can usually tell you the likely part before we attend.

We cover Croydon, and the whole of London

Tell us the address and you will get an honest answer about timing. View areas we cover

What happens when you call

Three steps. The first one usually tells us most of it.

Tell us where you are and whether there is a cylinderIn CR0 the more useful answer is whether there is a gas meter at all. A great many of the newer flats have none, and that changes everything that follows.
You will know what has probably failed, and when we can comeWe tell you the likely part and a realistic slot. If we cannot reach you today we say so on the phone, rather than after you have waited in.
Nothing starts until you have agreed the costThe engineer runs a full diagnostic, then puts the fault, the part and the labour in writing. Parts are guaranteed for a year.

If a repair is not worth doing, we will say so on the phone. Call 0203 868 6134.

We come to every street around here

Almost nobody says they live in CR0. They say Shirley, or Addiscombe, or Waddon.

Names we hear on CR0 calls, and the postcodes around it

Grouped by postcode, because that is the one part of an address everybody knows.

CR0Croydon, Croydon town centre, Waddon, Addiscombe, Shirley, Spring Park, Monks Orchard, Broad Green and Selhurst
CR7Thornton Heath and the Norbury border
SE25South Norwood and Woodside
CR2South Croydon and the Sanderstead border
SE19Upper Norwood and the Crystal Palace border

We work right across London, north and south of the river. If yours is not here, ring and tell us the address.

Two boiler markets in one postcode

And in a good part of CR0 there is no gas at all.

Croydon splits more sharply than anywhere else on our list. The town centre and Waddon carry more tall residential blocks than any other part of south London, most of them purpose built or recently converted. Out towards Shirley, Addiscombe and Spring Park it is 1930s semis and detached houses, almost all of which kept a cylinder in an airing cupboard. The newer blocks are frequently all-electric by design. There is no gas riser in the building and no meter in the flat, so what heats the property is an electric flow boiler, or a cylinder on an immersion, or panel heaters with a separate hot water store. None of those is a gas appliance and none of them shows a gas fault code. That is worth establishing before you ring anybody. A firm that only works on gas will attend, look at it, and leave. It is the commonest wasted visit in this postcode, and the answer takes ten seconds: if there is no gas meter and no flue outside, you do not have a gas boiler. We repair both, so it changes which engineer we send rather than whether we come.

Did you know An electric flow boiler is limited by the flat's electrical supply rather than by the appliance. A 9 kilowatt unit on a 40 amp circuit cannot deliver what a gas combi does, however new it is, so a disappointing shower in an all-electric flat is often a supply question rather than a fault. Worth knowing before anybody sells you a replacement.

No hot water, and three different answers

Which one applies depends on what heats the water.

In a Shirley or Addiscombe house with a cylinder, heating that works and hot water that does not points at the cylinder side: the motorised valve that diverts flow to the tank, the cylinder thermostat, or the immersion element. Each costs a fraction of a new appliance. In an all-electric flat the same complaint usually means the immersion element itself, or the timer that controls it, because there is no boiler in the picture at all. That is a smaller job than most people expect and it is not a new electric boiler. And on an electric flow boiler, no hot water with the heating still working points at the diverter or the PCB rather than the heating element, because a failed element takes out both at once. An unvented cylinder is a pressurised store, so working on one is notifiable and needs a G3 qualification on top of Gas Safe registration. That applies whether the heat comes from gas or from electricity, which is why an all-electric flat with a cylinder still needs somebody qualified. Our engineers hold both. See unvented cylinder repair.

Water running from a pipe outside? If it comes from a tundish, the cylinder is discharging and a safety device has failed. Turn the boiler off, isolate the cold feed if you can find the stopcock, and call. That is an emergency, not a booking for next week.

What hard water is doing to your system

On an immersion element it is worse than on a boiler.

London water comes off the Thames and the Lea, both of which run through chalk. It measures roughly 277 milligrams of calcium carbonate per litre, and that figure is much the same across the city. Where it lands is what differs. In a gas combi it furs the plate heat exchanger. In a Shirley house that kept its cylinder it coats the coil inside the tank. On an electric immersion element it forms directly on the element itself, which is the hottest surface in the whole system, so scale builds there faster than anywhere and an element in an all-electric flat has a harder life than the same part in a gas-heated house.

Two parts stop it, and they do different jobs. A scale reducer on the mains protects the hot water side. A magnetic filter on the return catches the magnetite that blocks exchangers and seizes pumps. Both go in during a yearly service, and a power flush deals with what is already in there.

Google Reviews

"Very happy with this company very and professionally service. Fixed my leaking TRV and after draining my system and the refilled and vented the air . Thank you I have heating now"
Jamie K.
"Took his time to listen to my concerns hence it was a nice job. Thank u so much"
Frank E.
"Efficient and amiable service all round. Even managed to save me money by fixing a thermostat that we thought was broken."
Graziano B.

Repair or replace

Age does not decide it. The failed part does.

A pump, a diverter valve, a thermostat or a fan is a repair on almost any appliance, whatever its age. A failed main heat exchanger on a boiler well past ten years is the point where the arithmetic stops working, and we will tell you that rather than sell you the repair. In an all-electric flat the replacement question needs one answer first: what the electrical supply to the property will actually carry. A larger electric boiler on a circuit that cannot feed it is not an upgrade, and no appliance can exceed the amps available to it. That is measurable, and it is the cheapest test in this trade. Our boiler replacement page sets out what a replacement actually involves, including what changes when a stored system is converted, and the costs guide explains what moves the figure.

That answer costs nothing. It is the one most people ring us for. Call 0203 868 6134.

Nearby areas

Next door to here we cover Sutton and Cheam and Sanderstead and Selsdon. Everything else is on boiler repair in south London and areas we cover.

Also close by: Purley and Kenley, Coulsdon, Crystal Palace, Chislehurst and Beckenham and Sydenham and Forest Hill. All of them south of the river, all at the same rate.

No gas meter in the flat?

Then you have an electric boiler or a cylinder on an immersion, not a gas appliance. Tell us and we will send an engineer who works on them rather than one who cannot.

Call 0203 868 6134

Safety

If you smell gas: do not touch any switches. Open the windows, leave the property, then call the National Gas Emergency Service on 0800 111 999. That line is free and open 24 hours. Call them before you call us. If a carbon monoxide alarm is sounding: get everyone out immediately, then call 999 if anyone feels unwell. Do not go back in until the property has been ventilated and checked. If the boiler locks out repeatedly: try one reset. If it locks out again straight away, stop. Repeated resets hide a fault that is still there, and on a gas appliance that is not a risk worth taking. Under the Gas Safety (Installation and Use) Regulations 1998, only a Gas Safe registered engineer may work on gas appliances. Never open the boiler casing yourself.

Common questions

Do you cover my street in Croydon?

Yes. The names listed above are the ones we hear most, and they are nowhere near a complete list. We work right across London, north and south of the river. Ring and tell us the address and you will get a straight answer about timing.

How do I know whether my flat has a gas boiler at all?

Look for a gas meter, and look for a flue terminal on the outside wall. If there is neither, the property is all-electric and what heats it is an electric boiler or a cylinder on an immersion. A great many of the newer blocks in and around the town centre were built that way deliberately.

My shower is weak in an all-electric flat. Would a bigger boiler fix it?

Usually not. An electric flow boiler is limited by the electrical supply to the property rather than by the appliance, so a 9 kilowatt unit on a 40 amp circuit cannot deliver what a gas combi does. Measuring what the circuit will carry comes before any conversation about a replacement.

My radiators are hot but there is no hot water. Do I need a new boiler?

Almost certainly not. In a house with a cylinder that points at the cylinder side: the motorised valve that diverts to the tank, the cylinder thermostat, or the immersion element. In an all-electric flat it is usually the element or its timer. Our unvented cylinder repair page explains the cylinder side.

Do you repair electric boilers as well as gas?

Yes, and in CR0 that matters more than in most postcodes. Same engineers, same rate, same year on the parts. See electric boiler repair. Telling us on the phone that there is no gas meter means we send somebody who can actually do the work rather than somebody who has to leave.

Do you repair Worcester Bosch and Vaillant boilers in Croydon?

Yes, and every other major make, including the ones most firms will not touch. Those two and Ideal are what we open most in the Shirley and Addiscombe houses. Biasi, ATAG, Keston, Ravenheat, Heatline and Sime all turn up across CR0. If your boiler is showing a fault code, the brand pages explain what it means.

I am a landlord with a flat in CR0. Can you do the certificate too?

Yes, and on the same visit where the appliance passes, so a let property is not off the market twice. See landlord gas safety certificates. If the flat has no gas supply there is no gas certificate to issue, and we will tell you that rather than charge you for one.

Are you available at night and at weekends?

The line is answered 24 hours a day by a technical customer service member, not a call centre reading from a script. In the middle of the night we will tell you honestly whether it is a tonight job or a first thing in the morning job.

The makes we see most in CR0

Every major make, and the fault code pages often name the part before you ring.

The houses out towards Shirley and Addiscombe run gas system boilers feeding a cylinder, and there that is mostly Worcester Bosch, Vaillant and Ideal, with Baxi and Glow-worm on the installations they replaced. The flats that do have gas run combis. We also work on the makes most firms will not: Biasi, ATAG, Keston, Ravenheat, Heatline and Sime all turn up across CR0, and parts for every one are still obtainable. Where there is no gas at all we cover electric boilers with the same engineers and the same rate. If your boiler is showing a code, the make decides what it means. An electric boiler shows none of the gas codes at all, which is itself the clue. Each brand page lists the codes for that make and what causes them.

The full list is on our boiler brands page, and general repairs are on boiler repair in London.

Google Reviews

"Steve was very helpful and responsive"
Richard E.
"Very professional and would recommend to anyone!"
Abby M.
"These guys provide an excellent service. A pleasure to deal with and professional"
Day Walker

Book an engineer in Croydon

Tell us where you are and whether there is a cylinder in an airing cupboard. With those two answers we can usually name the likely part, give you the rate, and book somebody in, all on the one call.

Call 0203 868 6134 Book an engineer online

Gas Safe registered. Unvented cylinder qualified. Parts guaranteed for a year. Covering London, north and south of the river, 24 hours a day.