Emergency Plumber Call-Out Fees Explained (And How to Avoid Them)

An emergency plumber call-out in London in 2026 typically costs £75 to £200 just to get someone to the door, before any work is done. Out of hours, that climbs to £150 to £350 minimum. The hourly rate after that is usually £80 to £150 weekday, double on a Sunday or bank holiday.

Most of those calls did not need to be emergencies. Here is what the fees actually are, what counts as a real emergency, and what to do in the first five minutes that often saves the bill entirely.

Typical fees in 2026

• Standard daytime call-out, weekday 8am to 6pm: £75 to £130
• Evening call-out, 6pm to 11pm: £120 to £220
• Overnight, 11pm to 7am: £180 to £350
• Weekend daytime: £100 to £180
• Sunday or bank holiday: £200 to £400

Most firms charge the call-out as a minimum (the first hour is included), then bill on top. Some quote separately for the call-out and the labour. Always ask which model they use before they get in the van.

Watch out for: a low-looking call-out fee with a 2-hour minimum charge tacked on, and parts charged at 3 to 4 times trade price. The cheap headline number is rarely the final bill.

What is actually a plumbing emergency

**Real emergencies (call now):**

• Burst pipe with water you cannot stop at the stopcock
• Major leak coming through a ceiling
• Sewage backing up into the property
• Gas leak (call National Gas Emergency on 0800 111 999, not a plumber)
• No heating or hot water in winter, with a vulnerable person or young children in the house

**Not really emergencies (book for tomorrow):**

• A dripping tap
• A slow shower drain
• A toilet that flushes weakly
• A radiator that is cold at the top
• A noisy boiler that is still working
• Low boiler pressure with no leak

Calling out an emergency plumber for any of the second list will cost you £150 to £300 to fix something a daytime booking would have charged £80 for.

What to do in the first five minutes

Most leaks can be controlled before the plumber arrives, and some can be fixed entirely.

**1. Find your stopcock.** Turn it clockwise to shut off the water. It is usually under the kitchen sink, sometimes by the front door, in a utility cupboard, or under the stairs. If you cannot turn it (a stiff stopcock is the most common cause of escalation), find the outside stop tap, usually a small metal cover near the front of the property, and turn that off with a stopcock key.

**2. Find the isolating valves.** Most modern installations have small valves under each sink, behind the toilet, and on the boiler. They have a slot you turn 90 degrees with a flat screwdriver. If the leak is at one fixture, isolating that fixture often means you can wait until morning and pay daytime rates.

**3. Turn off the boiler if heating water is leaking.** Stops the pump pushing water through the leak.

**4. Turn off the immersion heater if the cylinder is leaking.**

**5. Catch the water.** Buckets, towels, anything. If water is pooling above a ceiling, make a small hole in the ceiling under the worst patch and put a bucket beneath. Letting it drain in a controlled spot beats a collapsed ceiling.

Doing all five of these takes about 10 minutes if you have done it before, and downgrades most emergencies to a normal daytime booking.

How to vet an emergency plumber before they arrive

When the panic is on, people google and click the first ad. Before you do that, take 90 seconds:

• Search the company name plus 'reviews'. Real reviews on Google with photos and detailed text are a better signal than five word praise.
• Check Companies House. A 'national emergency plumber' that turns out to be a 6 month old company is a flag.
• Ask if they are local. National lead-generation sites farm calls out to whoever is closest, with a markup. A local firm that picks up its own phone is usually cheaper and arrives faster.
• Get the call-out fee, the hourly rate, and the minimum charge in writing by text before they leave. If they will not give it in writing, find another firm.
• Check Gas Safe registration if any gas work is involved. The Gas Safe website lets you search by name or postcode in 30 seconds.

Our policy

Plan C does not charge a call-out fee for non-emergency bookings during normal hours. You pay for the work done, not for the visit. Emergency call-outs do carry a fee because the engineer is being pulled off another job, but it is quoted up front and on the texted confirmation, so there are no surprises when the bill arrives.

If you are in BR or DA postcodes, our Bromley plumbers cover same-day for non-emergencies and 24/7 for genuine emergencies. The full breakdown of what counts is on the emergency repairs page, and the broader scope of work is on the plumbing services page.

When to bite the bullet and call

If water is actively coming through a ceiling, if you cannot find or cannot turn the stopcock, or if the leak is on the supply pipe before the stopcock (you cannot turn that off yourself, only Thames Water can), call. The damage compounds fast, and £200 to get someone there in 45 minutes is cheaper than redoing a ceiling and a downstairs floor.

Everything else, save the £200 and book it for the morning.

Common 'emergencies' that are not

**Boiler showing low pressure.** Topping up with the filling loop takes 90 seconds and is in the manual. If it drops again within 24 hours you have a slow leak somewhere, but that is a daytime job, not a midnight call.

**A radiator that is not heating.** If only one radiator is cold, it is almost always trapped air or a stuck thermostatic valve. A radiator key is £2.50 from a hardware shop. If the whole system is cold, that is different.

**A toilet that will not flush.** Take the lid off the cistern. Nine times out of ten the lift arm has come off the flush mechanism. A 30 second fix.

**A blocked sink.** Half a kettle of boiling water mixed with washing-up liquid clears most kitchen sink blockages. A plunger clears most bathroom sinks. A drain rod from Wickes is £8 and clears most stubborn ones. Emergency drain unblocking quoted at £180 minimum is overkill for almost anything you can reach with a plunger.

**A dripping tap.** Annoying, but it is a 20 minute job at daytime rates with a £4 washer. Leave it dripping into a bowl overnight.

What to do before any plumber arrives

Take photos of the leak before you start mopping. If insurance is going to be involved, the photo of the actual incident saves arguments later. Move anything porous (rugs, paperwork, electronics) clear of the area. Open windows if there is any smell of gas or sewage.

Know your address postcode and the rough age of the property when you call. The plumber wants to know whether they are dealing with copper, plastic, or in older South London stock, the occasional bit of lead. It changes the parts they bring in the van.