London plumbers who show up, quote before starting and do the job properly
Whether your boiler gave up overnight or you want a whole bathroom refitted, Ninja Plumbers covers homes and businesses across London. When it can't wait until morning, we don't make you wait.
Monday – Sunday, 7:00 AM – 10:00 PM · Out-of-hours emergency? Call 020 3576 5825
Tell us about the job
Name, phone and postcode are all we need to start. Everything else can wait.
Thank you — your enquiry is in
Expect a call back on the number you entered. For anything urgent, there is no need to wait: ring 020 3576 5825.
- Gas Safe registered Legal, signed-off gas work, every time
- Fully insured Public liability insurance on every job
- DBS-checked engineers Background-checked people in your home
- Price agreed first The figure is settled before we begin
- F-Gas certified Qualified for air con refrigerant work
- Workmanship guaranteed Every job is backed by our guarantee
What are you dealing with?
You don't need to know what the part is called. Pick whichever line sounds closest to what's happening and you'll get the page that covers it — what to check first, and when to ring us.
- Water is coming through the ceiling What to switch off first, and finding where it's from
- No heating or hot water Boiler faults diagnosed by Gas Safe registered engineers
- Toilet won't flush or keeps running Cistern and flush faults, including that constant trickle
- Drain or sink keeps blocking Cleared, then we find out why it keeps happening
- Water pressure has dropped One tap or the whole house? That's the first clue
- Power tripping, or a burning smell Registered electricians, with a 24/7 emergency line
- Damp patch but no visible leak Traced to its source before anything gets opened up
- Need something fitted Bathrooms, boilers, showers, taps and toilets, priced before we start
The first few minutes
You can smell gas
Get everyone outside, opening doors and windows on the way if you can. Don't use light switches, the doorbell or anything that could spark, and don't light a match or cigarette. Once you're out, call the National Gas Emergency Service free on 0800 111 999.
Water is pouring in
Shut the stopcock off — clockwise, like any tap. In a Victorian terrace, try under the kitchen sink first, then near the front door; it's sometimes under a hall floorboard or in the cellar. In converted flats, check kitchen units, airing cupboards and behind the bath panel.
Water is near the electrics
Don't touch any switch, socket or light that's wet, and keep out of rooms where the water is reaching them. If you can get to the fuse box (the consumer unit) without standing in water, turn the main switch off. If you can't, leave it alone.
Once everyone is safe, call us on 020 3576 5825 — emergency callout runs 24/7.
One team for plumbing, heating, drainage and electrics
Small repairs and full installations, done by the same people. Open any of these to see what the job involves and how we go about it.
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Emergency Plumbing
For burst pipes, serious leaks or a house with no water. The phone is answered at any hour and an engineer is sent out.
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Boiler Repair
Heating off, hot water gone or a fault code on the display. We find the cause, then fix it.
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Drain Unblocking
Blocked sinks, toilets and outside drains cleared with the right kit instead of bottled chemicals.
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Leak Detection
Acoustic and thermal equipment to trace hidden leaks before any floor is lifted.
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Bathroom Installation
Anything from swapping one fitting to stripping out and refitting the whole room, priced before work starts.
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Emergency Electrician
Power loss, trips that will not reset, burning smells and water in the electrics. We take calls around the clock.
Ninja engineers at work
We don't use subcontractors. Each booking is handled by one of our own directly employed engineers, travelling out from Fulham to homes and premises across the London boroughs.
Households and businesses
In your home
Across London, landlords, tenants and homeowners call us about kitchens, bathrooms, toilets, basins, radiators and boilers. That includes a pipe that bursts at eleven at night, too.
- Day and night emergency repairs
- Boiler services and replacements
- Fitting bathrooms and en-suites
- Repairs and turnarounds for landlords
At your business
We look after offices, restaurants, shops and blocks of flats. Visits fit around your opening hours and your tenants, and we report to whoever signs the work off.
- Plumbing for washrooms and kitchens
- Clearing commercial drains
- Managing agents’ reactive repairs
- Work outside hours to keep disruption down
A clear process and no unexpected bill
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Describe the problem
Call the booking line, or WhatsApp us a photo. When we can see the fault before the van leaves, the engineer is more likely to arrive with the right parts on the first visit.
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You get the price up front
You'll know the cost before any tools come out. Should we uncover something that changes the job, we pause and talk it over with you instead of pressing on.
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The repair, then the tidy-up
We complete the work, test it and leave things tidy. Any gas work is done by Gas Safe registered engineers, with a certificate issued wherever one is required.
Latest from the blog
Plain-English reads on everyday plumbing and heating problems, and the checks you can safely make yourself before anyone comes out.
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EICR for Landlords: What the Law Requires and What to Expect
Every private tenancy in England needs an EICR. Here is what the rules ask of you, what the codes mean, and what to do if the report fails.
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Boiler Pressure Low? How to Top It Up and Why It Keeps Dropping
Topping up takes a few minutes. Working out why the pressure keeps falling is what stops it happening again.
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Why Outside Taps Freeze and Burst — and How to Stop It
It is not the tap that bursts in a freeze — it is the pipe behind it, and by the time you notice, the thaw has already done the damage.
Things people ask before they book
Which parts of London do you cover?
All of Greater London, north and south of the river, plus Guildford and the towns around it: Woking, Godalming, Farnham, Camberley, Aldershot, Farnborough and Dorking. Wherever you are, you book through the same office on Fulham High Street. Not sure if we reach you? Give us your postcode when you ring and we'll tell you there and then.
When are you open?
The office is open every day, weekends included, from 7am to 10pm — call then for quotes and everyday bookings. Emergency callout runs 24/7, so for a burst pipe, a flood or no heating in the depths of winter, the same number works through the night.
How do your prices work?
You get a price before any work starts, so you can decide before anything is done. It depends on the job, the parts, how easy the pipes are to reach and whether it's out of hours. There is a call-out charge — ask when you ring and we'll tell you straight.
Is there a discount for new customers?
Yes. £25 comes off your first call-out with Ninja Plumbers. It's for new customers only, on that first visit, and can't be combined with any other offer. Mention it when you book so it's on the job from the start, not something to sort out on the doorstep.
How can I pay?
Card or cash, whichever is easier on the day. If someone else is paying — a landlord, a relative, a managing agent — tell us when you book, so the engineer knows who has agreed the price and the paperwork goes to the right person.
Is gas work done by Gas Safe registered engineers?
Yes. By law, anyone working on gas boilers, hobs, fires or gas pipework must be on the Gas Safe Register, and our gas work is done by registered engineers. Each carries an ID card listing the gas work they're qualified for — you're welcome to check it before they start.
Do you work for landlords, managing agents and tenants?
Yes, all three. If you rent, check with your landlord or letting agent before booking non-urgent work — they may have someone already and will usually be paying. In blocks and converted houses, leaks from shared pipework are often the freeholder's to fix, so let the managing agent know too.
What should I have ready when I call?
Your postcode, and what's going on — a photo on WhatsApp saves a lot of explaining. Know where your stopcock is and whether it turns. Then tell us how we get in: parking or permit bays, entry codes, a concierge or key safe. On plenty of London streets, parking is what slows an engineer down.
Looking for a plumber today?
Call the booking line and a real person picks up, someone who can send an engineer your way. For anything urgent, phone us instead of emailing.