24/7 Emergency Plumber in London

When a plumbing emergency strikes, every minute counts. Whether you’ve come home to a burst pipe flooding your hallway, discovered a serious leak in the middle of the night, or suddenly lost all hot water, Catalyst Home Services is here to help — 24 hours a day, 7 days a week, across London and the surrounding areas. Our Gas Safe registered engineers and experienced plumbers respond quickly, work cleanly, and fix the problem properly the first time.

Don’t let a plumbing crisis escalate. Call us now on +44 7400 265421 or book via our Emergency Line →

What Does Emergency Plumbing Cover?

Plumbing emergencies come in many shapes and sizes — and most of them can’t wait until Monday morning. Our emergency plumbing service covers the full spectrum of urgent plumbing problems that London homeowners, landlords, and businesses encounter: from catastrophic burst pipes and hidden leaks to sudden boiler breakdowns and water pressure failures.

Below, you’ll find a summary of the most common emergency situations we attend. Each links to a dedicated service page with more detail.

Burst Pipe Repair

A burst pipe is one of the most alarming plumbing emergencies you can face. Water can cause significant structural damage in a very short space of time — damaging ceilings, flooring, electrics, and personal belongings. If you suspect a burst pipe, turn off your stopcock immediately and call us straight away.

What’s included:

  • Rapid attendance across London
  • Isolation and diagnosis of the affected pipe
  • Repair or replacement of the burst section
  • Leak-proofing and pressure testing
  • Advice on preventing future occurrences

Whether it’s a frozen pipe that’s cracked over winter, old pipework that’s finally failed, or an accidental strike during DIY work, we’ve seen it all — and we know how to fix it fast.

Find out more about Burst Pipe Repair →

Leak Detection & Repair

Not all leaks are obvious. A slow drip behind a wall or under your floorboards can go unnoticed for weeks, quietly causing water damage and mould growth. If you’ve noticed damp patches, an unexplained rise in your water bill, or the sound of running water when nothing is turned on, you may well have a hidden leak.

What’s included:

  • Non-invasive leak detection techniques
  • Thermal imaging and acoustic equipment where required
  • Pinpoint location of concealed leaks
  • Full repair with minimal disruption to your home

Early detection saves money and prevents damage. If you have even the slightest suspicion of a leak, it’s always worth getting it checked.

Find out more about Leak Detection & Repair →

No Hot Water — Boiler & Water Heater Emergency

Losing your hot water is more than just inconvenient — in winter especially, it can be a genuine welfare concern for families, elderly residents, or anyone with young children. Our engineers are trained to diagnose hot water failures quickly, whether the problem lies with your boiler, cylinder, or water heater.

What’s included:

  • Emergency boiler diagnosis and fault-finding
  • Water heater inspection and repair
  • Identification of failed components (thermostats, valves, heat exchangers)
  • Same-day resolution where parts are available
  • Advice on replacement if repair is no longer cost-effective

We work on a wide range of boiler makes and models and carry common parts in our vans to minimise delays.

Find out more about Boiler & Water Heater Service →

Water Pressure Issues

Suddenly weak water pressure can make showers barely trickle and taps frustratingly slow. On the other end of the scale, pressure that’s too high can place excessive strain on your pipework and appliances, increasing the risk of leaks over time. Either way, a sudden change in pressure is a signal that something needs attention.

What’s included:

  • Pressure assessment across the system
  • Identification of blockages, valve failures, or pump issues
  • PRV (Pressure Reducing Valve) inspection and replacement
  • Restoration of safe and comfortable water pressure

Find out more about Water Pressure Issues →

Emergency Blocked Drain Clearance

A blocked drain can very quickly go from a minor inconvenience to a serious sanitation emergency — particularly if waste water is backing up into your property. Our drainage team is experienced in clearing all types of blockages, from kitchen and bathroom drains to external gullies and manhole chambers.

What’s included:

  • High-pressure water jetting
  • Drainage rods and mechanical clearance
  • CCTV drain inspection where required
  • Identification of the root cause (root ingress, fat build-up, collapsed pipe)
  • Advice on preventing recurring blockages

Find out more about Blocked Drain Clearance → Blocked Toilet Unblocking →

Tap & Faucet Repair

A tap that won’t stop dripping isn’t just irritating — it can waste thousands of litres of water each year and push up your water bill considerably. A tap that’s seized, leaking from the base, or simply stopped working properly is something we can usually sort out quickly on a same-day call.

What’s included:

  • Diagnosis of the fault (worn washer, ceramic cartridge, valve seat)
  • Repair or replacement of internal components
  • Full pressure check once complete

Find out more about Tap & Faucet Repair →

Toilet Repair — Emergency Situations

A toilet that’s overflowing, constantly running, or won’t flush is both an inconvenience and a potential hygiene concern. We treat toilet emergencies as a priority, particularly in households with only one bathroom.

What’s included:

  • Diagnosis of flush mechanism, fill valve, or siphon failure
  • Repair or replacement of internal components
  • Overflow investigation and resolution
  • Advice on full toilet replacement if the unit is beyond economical repair

Find out more about Toilet Repair & Replacement →

Why Professional Emergency Plumbing Matters

It’s tempting, when something goes wrong at midnight, to search for the cheapest person who’ll come out. But emergency plumbing mistakes can be costly — both financially and structurally. In the UK, certain plumbing and heating work must be carried out by qualified and registered engineers. Gas work, for example, is a legal requirement under the Gas Safety (Installation and Use) Regulations 1998 and must only be performed by Gas Safe registered engineers.

Beyond compliance, working with a qualified plumber means the work is done safely and to the standards set by the Water Regulations Advisory Scheme (WRAS) and relevant British Standards. This matters when it comes to insurance claims, mortgage surveys, and future property sales.

At Catalyst Home Services, our engineers are fully qualified, carry appropriate insurance, and operate transparently — so you’ll always know what the job involves and what it will cost before any work begins. You can review our full credentials on our Licences & Certifications page →

Who We Work With

Our emergency plumbing service is available to:

Homeowners — Whether you own a flat in zone 2 or a Victorian terrace in south London, we’re equipped to handle the full range of plumbing emergencies that come with all types of residential property.

Landlords & Letting Agents — Rental properties bring their own responsibilities. We understand the urgency of attending to tenant emergencies quickly, and we can liaise directly with tenants on your behalf. Our Residential AMC plans are particularly popular with landlords who want peace of mind year-round.

Commercial Clients & Businesses — Office buildings, restaurants, retail spaces, and other commercial premises can’t afford plumbing downtime. Our Commercial Plumbing team is available for commercial emergencies and scheduled maintenance alike.

Property Developers & Builders — If you’re on a tight construction schedule and something goes wrong, we can attend at short notice and work alongside your team to keep the project moving.

How Our Emergency Plumbing Service Works

1. Call or Contact Us Ring our emergency line on +44 7400 265421 or use our Emergency Line page at any hour. Tell us what’s happening and where you are — the more detail, the better we can prepare.

2. We Give You an ETA We’ll confirm how quickly we can reach you and give you any immediate safety advice — such as how to isolate your water or gas supply — while you wait.

3. Our Engineer Arrives Our plumbers arrive in a stocked, clearly marked van ready to tackle the most common emergencies. We’ll assess the situation and explain exactly what’s wrong before touching anything.

4. We Fix the Problem Once you’ve agreed to the scope of work, we get on with it — efficiently, cleanly, and without unnecessary disruption. We’ll protect your floors and surfaces while we work.

5. We Leave You with Peace of Mind Once the job is done, we’ll walk you through what was repaired and why, answer any questions you have, and make sure you know how to prevent the same issue in the future. We always clean up before we leave.

Why Choose Catalyst Home Services?

We’re not a faceless call centre — we’re a London-based team that genuinely cares about the people we work with. Here’s what sets us apart:

  • Honest, upfront pricing — no hidden call-out fees or surprise charges
  • Qualified, vetted engineers — background-checked and fully insured
  • 24/7 availability — real emergencies don’t wait for business hours
  • Fast response times — we aim to be with you as quickly as possible
  • Clean, professional service — we treat your home the way we’d treat our own

Read more about what makes us different on our Why Choose Us page → Browse our Licences & Certifications → See what our customers say on our Reviews & Testimonials page →

Related Services

Looking for something slightly different, or planning ahead after your emergency is resolved?

FAQs

How quickly can you reach me in a plumbing emergency?

Response times vary depending on your location within London and how busy our engineers are at the time. We’ll give you a realistic ETA when you call and aim to reach you as quickly as possible. For genuinely urgent emergencies — such as a burst pipe actively flooding your property — we prioritise attendance accordingly.

Is your emergency plumbing service available 24 hours a day?

Yes. Our emergency line is staffed around the clock, every day of the year — including bank holidays and weekends. Plumbing problems don’t follow office hours, and neither do we.

What should I do while I wait for the plumber to arrive?

The most important thing you can do is turn off your water at the stopcock — usually found under the kitchen sink or near the water meter. If you suspect a gas issue, turn off your gas at the meter and open windows to ventilate. Do not use any electrical switches or appliances if water is near electrics. Call us if you’re unsure what to do — we’ll guide you over the phone.

How much does an emergency plumber cost in London?

Emergency plumbing costs vary depending on the nature of the problem, the time of call-out, and the parts required. We always provide a clear explanation of costs before any work begins — there are no hidden fees or unexpected charges. Contact us for a guide price specific to your situation.

Do you carry parts with you?

Yes — our engineers’ vans are stocked with many of the most commonly needed parts for emergencies, including washers, cartridges, valves, and jointing materials. This allows us to resolve many emergency jobs on the first visit without needing to order in parts.

Are your plumbers Gas Safe registered?

Yes. Any work involving gas — including boiler diagnosis, gas pipe repairs, and gas appliance checks — is carried out by Gas Safe registered engineers. You can ask to see our engineer’s Gas Safe ID card on arrival, and you can verify registration independently at the Gas Safe Register website. Our credentials are also listed on our Licences & Certifications page.

Can you help with a plumbing emergency in a rented property?

Absolutely. We work regularly with landlords, letting agents, and their tenants. If you’re a tenant, we recommend informing your landlord before calling — but if there’s an immediate risk of damage, your safety and that of your property always comes first. We can liaise with your landlord or agent afterwards if needed.

What areas of London do you cover?

We cover a wide range of areas across London and beyond. Visit our Service Areas page for a full list of locations, or simply call us — if we can reach you, we will.

Ready to Get Help? Contact Us Now

A plumbing emergency is stressful — but you don’t have to face it alone. Catalyst Home Services is ready and waiting to help you, whatever the hour.

📞 Call our emergency line: +44 7400 265421

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