Plumbing, heating, drainage and electrical work across London
Ninja Plumbers' own engineers carry out every job listed here, for homes and commercial premises alike. Can't see what you need? Ring and ask — quicker than guessing from a list.
- Gas Safe registered and fully insured
- DBS-checked engineers
- Emergency callout available 24/7
- Price agreed before work starts
- Workmanship guaranteed
Monday – Sunday, 7:00 AM – 10:00 PM · Out-of-hours emergency? Call 020 3576 5825
Send us the job
Three details get an engineer moving. The rest is optional.
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We’ll come back to you on the number you gave us. If it’s urgent and you’d rather not wait, call 020 3576 5825.
Choose the job
Click through to any of these and you'll find what's included, what's worth checking before you pick up the phone, and the questions people ask us most often.
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Emergency Plumbing
Burst pipes, major leaks and no water. We take calls around the clock and get an engineer moving.
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Boiler Repair
No heat, no hot water, or a boiler locked out on a fault code. Diagnosed first, then fixed.
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Boiler Service
The annual check that keeps a boiler safe, efficient and inside its warranty terms.
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Boiler Installation
A new boiler sized for the property, fitted properly, with the price agreed first.
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Boiler Replacement
Replacing a boiler that has reached the end, with a straight answer on whether it has.
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Drain Unblocking
Sinks, toilets and outside drains cleared with proper equipment, not a bottle of chemicals.
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Leak Detection
Hidden leaks traced with acoustic and thermal equipment, before floors come up.
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Bathroom Installation
A single fixture swap through to a full strip-out and refit, priced up front.
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Toilet Installation
A new toilet fitted, an old one swapped, or a WC moved to somewhere it has never been.
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General Plumbing
Taps, toilets, radiators and pipework. The jobs that never quite get done.
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Commercial Plumbing
Offices, restaurants, retail and blocks of flats, worked around your opening hours.
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Gas Safety Certificates
Landlord gas safety certificates issued by a Gas Safe registered engineer, with the paperwork sent the same day.
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CCTV Drain Surveys
A camera down the drain shows what is actually wrong, rather than guessing from what keeps happening above ground.
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Drain Repairs
A drain that is actually broken, not just blocked — repaired by digging it up or, where the run allows, without digging at all.
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Wet Rooms & Walk-In Showers
Level-access showers and full wet rooms, with the tanking and falls that decide whether it leaks in five years or never.
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Air Conditioning Repair
A system that has stopped cooling, is leaking indoors, or is tripping the breaker — diagnosed before anything is quoted.
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Air Conditioning Maintenance
Annual maintenance that keeps a system cooling efficiently and catches a refrigerant leak before it becomes a breakdown.
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Air Conditioning Installation
Split and multi-split air conditioning, sized and sited properly, fitted by F-Gas registered engineers.
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Air Conditioning Replacement
Swapping out a system that is worn out or failing — including older units on a refrigerant that can no longer be topped up.
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Blocked Toilet
A toilet that will not flush away, or one that keeps blocking. Cleared, with the cause explained.
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Shower Installation
Mixer, thermostatic and digital showers fitted — matched to the water system you actually have.
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Shower Repair
Weak flow, wandering temperature, no hot water or a leak — diagnosed and repaired, usually without a new shower.
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Bath Installation
One bath out, another one in — or the bath out and a shower in its place.
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Tap Repair and Replacement
Dripping, stiff and leaking taps repaired, and tired ones swapped for new.
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Lead Pipe Replacement
Old lead supply pipes replaced with new, from the boundary into the house.
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Pipe Repair
Burst, split, frozen and corroded pipework repaired — or replaced where patching it would be pointless.
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Low Water Pressure
Weak taps and showers diagnosed by testing, not by swapping parts and hoping.
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Central Heating Installation
The whole system — boiler, pipework, radiators and controls — rather than a new boiler on its own.
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Surface Water Drainage
Rainwater with nowhere to go — standing water on patios, paths and gardens, given somewhere to drain.
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Gutter Repair
Blocked, leaking, sagging and overflowing gutters cleared and repaired, along with the downpipes below them.
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Leaking Ceiling
Water dripping or pouring through a ceiling. What to do first, then the source found and stopped — in your home or the flat above.
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Toilet Repair
Toilets that will not flush, keep running, fill slowly or leak onto the floor. Usually one worn part, replaced without needing a new toilet.
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Leak Repair
Leaks you can see — dripping joints, weeping valves, perished hoses, overflows running outside — isolated, repaired and checked properly afterwards.
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Electrical Repairs
Tripping circuits, dead sockets, faulty lighting and extractor fans, traced and fixed with the price agreed first.
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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.
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EICR Certificates
Electrical Installation Condition Reports for landlords, homeowners and buyers, with any remedial work priced separately.
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Fuse Box Replacement
Old fuse boxes swapped for modern consumer units with RCD protection, tested, certified and notified for you.
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Rewiring
Full and partial rewires for houses and flats, planned around you and the other trades, then tested and certified.
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EV Charger Installation
Home charge points surveyed, fitted, notified and certified, with any supply upgrades priced up front.
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For your home
We work with homeowners, tenants and landlords across the capital — the burst pipe at eleven at night, and the bathroom you’ve been putting off replacing for three years.
- Emergency repairs, day or night
- Boiler servicing and replacement
- Bathroom and en-suite installation
- Landlord repairs and tenancy turnarounds
For your business
Offices, restaurants, shops and blocks of flats. We work around opening hours and tenants, and report back to whoever signs it off.
- Washroom and commercial kitchen plumbing
- Commercial drain clearance and CCTV survey
- Reactive repairs for managing agents
- Out-of-hours work to avoid disrupting trade
Boiler work by brand
Repair, servicing, installation and replacement are each covered on their own page above. For what tends to come up on your specific make, we've got a page per brand too.
Damp and condensation
We also survey, diagnose and treat damp — rising, penetrating and condensation each need a different fix, so Ninja Plumbers starts with a proper inspection rather than guessing.
Plumbing and heating advice
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.
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.
Why Is My Water Bill So High? Hidden Leaks Explained
A leak you cannot see is still a leak you are paying for, and the water meter usually notices before you do.
Not sure what you need?
Tell Ninja Plumbers what's going on and we'll talk you through what's involved and what it costs. If it's urgent, ring rather than email — a real person answers the booking line and can get an engineer moving.