Emergency boiler repairs in London
Calls answered 24 hours a day
- Calls 24/7
- Gas Safe registered
- Rate in writing
- All London
- 12-month guarantee
Makes we repair
Our recent work
See it full sizePutney, SW15: the boiler's front off, a dust sheet down and the tools laid out 
See it full sizeThe boiler opened up: the fan, the gas valve and the flue duct, the control panel lowered 
See it full sizeInside the boiler: the pump and its pressure relief valve, with the red cap 
See it full sizeInside the boiler's case, beside the flue 
See it full sizeThe bathroom radiator off its brackets, the flushing hoses on its two valves 
See it full sizeThe power flushing machine in the next room, its hoses running to the bathroom 
See it full sizeThe Kamco Clearflow running, two radiators off and leaning on the wall 
See it full sizeThe front room's radiator off too, the hoses on its valves under the window 
See it full sizeThe machine up close: its pump, its valves and the hose that fills it 
See it full sizeThe machine's magnetic filter, with the system cleaner and the inhibitor 
See it full sizeThe machine and its filter in the front room, the cleaner and inhibitor ready 
See it full sizeThe boiler's front back on: an Ideal Logic+ combi 
See it full sizeRunning again: hot water ready, and the heating on at 56°C Need a power flush?
See it full sizeFront case off and the control panel lowered, to see inside 
See it full sizeA multimeter and tools laid out by the boiler 
See it full sizeFlushing hoses run in through the cupboard door 
See it full sizeThe hoses connected under the boiler, its controls wrapped against water 
See it full sizeThe power flushing machine set up outside, on a drip tray 
See it full sizeThe machine's hoses run back to the heating system 
See it full sizeThe machine's pump and filters, close up 
See it full sizeTools, and the system cleaner that goes in with the flush 
See it full sizeThe boiler's body lifted off its frame on the wall 
See it full sizeThe boiler's body out on the patio, after dark 
See it full sizeThe boiler's plate heat exchanger, which heats the hot water on a combi 
See it full sizeWorking on the fan, at the top of the boiler 
See it full sizeThe new fan, left, beside the old one 
See it full sizeThe new fan, ready to go in Boiler playing up?
See it full sizeThe flushing hose connected at the boiler's pipes 
See it full sizeA boiler with a built-in hot water store, its case off 
See it full sizeThe flushing hoses connected under the boiler 
See it full sizeThe power flushing machine set up indoors, on sheets and a drip tray 
See it full sizeThe system cleaner and the inhibitor that go in with the flush 
See it full sizeThe machine's filters, close up 
See it full sizeThe underfloor heating's manifold, on the same system 
See it full sizeThe boiler's control board, its cover off Need a power flush?
What we repair, service and certify
![]()
Boiler repairA boiler that has stopped, leaks or keeps cutting out.![]()
Boiler servicingThe yearly service, and what it checks.![]()
Gas safety certificatesThe landlord's yearly check and its record.![]()
Central heating repairRadiators, pumps, valves and controls.![]()
Electric boilersThe kinds, the makes, and the repair when one stops.![]()
Power flushingSludge cleared from radiators, pipes and the boiler.![]()
New boilersFor when a repair is no longer worth it.![]()
Our ratesHow our rates work, and what decides a repair's price.
Emergency power flushing
Sludge in your heating? We flush it out.
A power flush clears sludge from radiators, pipes and boiler, with emergency flushes across Greater London.
The kit we use
- Kamco Clearflow CF90 reverses the flow to loosen sludge
- A Kamco magnetic filter pulls out the magnetite
- Sentinel X800 cleaner dissolves magnetite and limescale
- Inhibitor included to slow new corrosion
15% off a new boiler, fitted
Terms: 15% off everything in the price we quote for a new boiler installation. That means the boiler, its flue and controls, and the fitting. The offer is for installations booked by 31 December 2026. One offer per home, and not with any other offer.
What counts as a boiler emergency
If your boiler has stopped, is leaking or won't restart, ring us now. You don't have to work out first whether it's an emergency. We'll ask what the boiler is doing, and decide with you how soon an engineer needs to come. That depends on how urgent it is, and on whether the likely part is to hand.
A boiler breakdown in London: what happens when you ring
We answer, day and night. We'll take you through what happens next.
1. You ring and say what you see
We'll ask what the boiler is doing: no heat, no hot water, a leak, a noise, or a code on the display. We'll ask its make too, if you know it. That's all we need to start.
2. We tell you when we can come
From your answers, we work out which part has probably failed. We tell you on the call when an engineer can come. The rate is agreed in writing before any repair starts.
3. An engineer finds the fault
The engineer tells you which part has failed, whether they carry it and how long the job should take. The repair is guaranteed for 12 months: the parts, the labour and any return visit.
Don't know what has failed? You don't have to.Ring and say what you can see or hear. Finding the fault is our job.
Calls answered 24 hours a day
A real person answers and gives you the rate on the call. No work starts until you say yes, and repairs are guaranteed for 12 months: parts, labour and any return visit.
What you can safely check while you wait
Four things are safe to check yourself. Boiler makers give each of them to the user in their manuals, and none means opening the boiler.
The power
Is the boiler's display lit? Check the switch beside the boiler, and your fuse box.
The gas supply
Do your other gas appliances work? On a prepayment meter, is there credit? Never turn the gas back on after a smell of gas.
The controls
Is the timer on and the thermostat turned up? Do the thermostat's batteries work?
The pressure gauge
Most makers give about 1 to 1.5 bar. If your boiler's manual shows you how to top it up, you can do it yourself. If not, ring us.
Don't take the boiler's case off, and don't touch anything that carries gas.
Not sure which problem you have? See what each one usually means.
If you rent: what to tell your landlord
If you rent, tell your landlord or letting agent straight away. The boiler is theirs to repair. The law makes a landlord keep the heating and hot water in repair and working order. The law covers a tenancy granted for less than seven years, and some longer tenancies from social landlords, with a few exceptions.
Say what the boiler is doing and when it stopped. If they ask you to arrange the repair yourself, get it in writing that they will pay.
Sources: the Landlord and Tenant Act 1985, sections 11, 13 and 14.
Worth knowing
A landlord must also have the boiler checked for safety every 12 months. What the landlord's check covers.
What changes the price of an emergency visit
The rate depends on how long the job takes, the time of day and the season, so no price is printed here. The engineer agrees the rate with you in writing before starting.
The gas engineers who come to your home
Day or night, the engineer who comes to your home is Gas Safe registered.
Gas Safe registered
All work is carried out by a qualified, experienced Gas Safe registered engineer.
Boilers, heating, gas and cylinders
Not sure your job is one of ours? Ring us and ask.
All of Greater London
We cover all of Greater London.
Answered day and night
Calls are answered 24 hours a day.
Where in London we work
We cover all of Greater London, on both sides of the Thames.
North of the river
Every borough north of the Thames: Barnet and Enfield at the top, Hillingdon in the west, Havering in the east, and central London in between.
South of the river
Every borough south of the Thames: Richmond and Kingston in the west, Bexley in the east, and down through Croydon to Sutton and Bromley.
Questions about calling a gas engineer
Is a broken boiler an emergency?
If the home has no heating or hot water, yes. But you don't have to decide. Ring us, and we'll ask what the boiler is doing, then tell you how soon an engineer can come. That depends on how urgent it is, and on the part the repair is likely to need.
Can I use the boiler while I wait?
Not if it is leaking, smells of gas or burning, or has a warning label on it. By law, a gas appliance you think is unsafe must not be used.
Water is coming from the boiler: what now?
Ring us, and don't take the boiler's case off to look. What a leaking boiler usually means.
Can I ring at night or at the weekend?
Yes. Calls are answered 24 hours a day, and a visit at night is arranged on the call, as it is by day.
How much does an emergency boiler repair cost?
The cost of an emergency repair depends on how long the job takes, the time of day and the season. The engineer agrees the rate with you in writing before starting. What changes the price.
Do you cover my part of London?
Yes, if you are in Greater London: we cover all of it. The areas we cover.
Do you do plumbing as well?
Our engineers work on boilers, central heating, gas and hot-water cylinders. If your job is close to those, ring us and ask: we'll tell you straight away whether we can help.
Need an engineer?Ring us, or give us your number and we'll ring you back.
Calls are answered 24 hours a day.
