Emergency Plumber in Croydon | 24/7 Available

The biggest borough in London, and the widest spread of building types

The 2021 Census counted 152,946 households in Croydon and 390,719 usual residents. Both are the highest of the thirty-three London local authorities. Barnet is second on both counts. That scale on its own changes how a repair firm has to work here, because the drive from Norbury to Coulsdon is not a cross-town hop, it is a different half of a borough that happens to share a council.

The building stock spreads just as widely. 12.2% of Croydon homes are detached, fourth highest in London against a London average of 6.1%. Another 24.7% are semi-detached and 23.3% are terraced. Only 29.0% are in a purpose-built block of flats, twenty-fourth of thirty-three, against 40.3% across London. Just 8.5% are part of a converted or shared house, well under the London figure of 11.1%.

Read that alongside the bedroom count and the picture sharpens. 34.2% of Croydon homes have three bedrooms and 19.4% have four or more. Only 17.3% are one-bedroom, against 21.2% for London. And 26.4% of households sit at an occupancy rating of +2 or more on the bedroom standard, meaning two or more spare bedrooms. This is a borough of family houses with room in them, not a borough of studios.

So the practical shape of a Croydon job is different from an inner London one. In a converted flat in Zone 2 the first job is establishing whose pipe it is. Here the incoming main, the stopcock, the boiler, the cylinder, the soil pipe and the drain run to the boundary are usually all yours, and there is nobody upstream to wait for. That means diagnosis and repair far more often happen on the same visit. The offsetting problem is distance: in a borough this size, telling us which end you are at when you call is genuinely useful.

A gas borough, with a Norwood and Thornton Heath exception

74.7% of Croydon households heat on mains gas only, twelfth highest in London against a London figure of 70.5% and an England figure of 74.0%. 10.4% heat on electricity alone, twenty-fifth of thirty-three, and 2.0% recorded no central heating at all. Only 1.4% are on a district or communal heat network, twenty-third of thirty-three, against 3.4% across London.

That concentration matters more than it sounds. When three quarters of a borough depends on one appliance for both heating and hot water, a boiler failure is a total failure. There is no immersion heater to fall back on in most Croydon homes and no communal plant carrying the load. It is why the winter pattern here is so sharp: the first hard frost produces a run of no-heat and no-hot-water calls from houses that were working fine in October, usually on a frozen or split condensate run, a seized diverter valve or an expansion vessel that lost its charge quietly over the summer.

The Census does not break that 10.4% down below borough level, but in our own call log the electrically heated jobs come disproportionately from the flatted stock rather than the houses. Those are immersion heater, unvented cylinder and electric shower jobs rather than boiler jobs, and they need a G3 qualification for the unvented work rather than a gas ticket. We carry both.

We have deliberately not published a heat network claim for Croydon. Several boroughs we cover operate named council heat networks and say so on their own websites. Croydon does not publish one, and we are not going to imply otherwise. If your block runs on communal plant, tell us when you call and we will attend on that basis.

Licensing arrives in autumn 2026, and until then it is mandatory HMO only

Croydon is in an unusual position for a large outer London borough. Right now the only property licensing running here is the national mandatory HMO scheme. There is no borough-wide additional HMO licence and no selective licence in force at the time of writing. That changes in autumn 2026, and landlords who assume Croydon works the way Newham or Haringey works will be caught out.

The council made two designations on 25 March 2026. The additional licensing notice states that it 'shall apply to the entire area of the London Borough of Croydon as delineated in black on the map in annex A' and that it 'shall cease to have effect on 1st September 2031'. The selective licensing notice names fourteen wards: Addiscombe East, Addiscombe West, Bensham Manor, Broad Green, Fairfield, Norbury and Pollards Hill, Norbury Park, Selhurst, South Croydon, South Norwood, Thornton Heath, Waddon, West Thornton and Woodside. Both designations run for five years.

There is a date discrepancy we are not going to paper over. The statutory designation notices both say the schemes come into force on 1 September 2026. Croydon's own web pages say 25 September 2026. Both are current council publications. Check the council's licensing page for your own property rather than relying on either figure from us.

The additional scheme catches a property 'occupied by 3 or more persons comprising 2 or more households'. It expressly excludes Section 257 HMOs, meaning buildings converted into self-contained flats that did not meet the 1991 Building Regulations standards. That is the opposite of Ealing's approach a few miles north west, so a landlord with property in both boroughs cannot assume one answer covers the other.

One more thing predates all of it. Croydon has had a borough-wide Article 4 direction removing permitted development rights for conversion from a dwellinghouse to a small HMO since 28 January 2020. Planning permission is required for that change of use across the whole borough, and has been for years, independently of any licence.

Twenty-one conservation areas and a town centre that is still being rebuilt

Croydon states that it currently has twenty-one conservation areas. They cover the older residential parts of the borough rather than the commercial core, so the fabric constraints and the high-rise constraints tend to sit in different postcodes.

In a conservation area the emergency repair is never the problem. Stopping water and making a property safe goes ahead regardless. What needs thinking about is the permanent reinstatement: a soil or vent pipe in a new position on a visible elevation, a boiler flue punched through a front facade, an external condensate run, or replacement rainwater goods in a material that does not match what came off. We separate the two stages deliberately. Reversible work first so the building is watertight, then a specification for the permanent repair with the consent question raised before you commit rather than after.

At the other end of the borough the town centre carries a concentration of tall residential buildings that has no parallel anywhere else in south London outside the river corridor. In those buildings the failure modes flip completely. Isolation points are on landings and in riser cupboards rather than under sinks, the flat that floods is usually not the flat where the fault is, and getting to the plant is a question of who holds the keys at two in the morning rather than what tools are in the van.

Croydon publishes that it makes 'a capital investment of over £20 million pounds every year across the borough's council homes'. We have not published a council stock figure for Croydon, because the two numbers circulating come from documents we could not read directly and we are not prepared to guess at it.