Boiler repair in London by Gas Safe engineers
No heating, no hot water, or a boiler locking out with a fault code. We diagnose it first, then tell you honestly whether repairing or replacing is the better spend.
Offer £25 off your first call-out for new customers- Gas Safe registered Legally required for any gas work
- Repair and replace both priced Compare the two on real numbers
- Same-week appointments Usually within days, not weeks
- Directly employed engineers Never subcontracted
Mon–Fri 8:00–17:30 · Emergency callout available 24/7
Book a heating engineer
Tell us the make and model, and the fault code if it is showing one. It often means the engineer arrives with the right part.
Thanks — we’ve got it
We’ll come back to you on the number you gave us. If it’s urgent and you’d rather not wait, call 020 3488 3737.
No obligation. Nothing is booked until you have agreed the price.
- Gas Safe registeredGas work done legally and signed off
- Fully insuredPublic liability cover on every job
- DBS-checked engineersDirectly employed, never subcontracted
- Established 2019Tamesis Development Ltd, Company No. 12210539
Customer reviews
New toilet fitted — pain-free experience
“Max was extremely kind and flexible — the first toilet was too big so he came back an hour later with a smaller one and stayed into the evening to fit it. Also heat-dried the floor and resealed a small leak. Highly recommended!”
Scott S
- Checkatrade
Helped when others weren't interested!
“Very happy with the response, service and work carried out at very short notice by this team — where no one else on Checkatrade could be bothered!”
Stuart U
Fast, transparent emergency drainage repair
“Amir Qome and Mohsen arrived within 20 minutes. They texted updates, sent photos/videos of every important step, put in temporary safety measures and completed a fragile, complex job in 4.5 hours — at a lower price than previous invoices. I’ll only use this company from now on.”
Ellie Castano
Brilliant boiler service from start to finish
“Arrived on time, very respectful and professional, worked quickly, and left everything clean and tidy after fixing the boiler. Really appreciated how efficient and hassle-free the whole job was. Would definitely recommend.”
Aryan
- Google
“Initially changed our pump for our water pressure (advised from a previous plumber), but that didn't solve our problem. Diako at Ninja Plumbers sorted out the issue the next week for a very reasonable price! Our water pressure now works perfectly!”
Alex B
- Google
“Great price On time and reliable company Great job”
Simone Morgan Abel
- Google
“Ali was amazing! Has made my bathroom feel like a luxury hotel! He was so considerate of me and my son it was a pleasure to have him working in my house! His attention to detail is one of many reasons I’d have him back working in my place, thank you Ali 🙏”
Terry Coleman
- Google
“Highly Recommended Plumbers in London.”
Fred Gh
Boilers, radiators and hot water
Breakdowns, annual servicing and the radiator that has never got warm — all by Gas Safe registered engineers.
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Boiler breakdowns
No heating, or a boiler that will not fire
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No hot water
Diverter valves, thermostats and controls
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Fault codes and lockouts
Diagnosed properly, not reset and hoped
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Annual boiler service
Keeps most manufacturer warranties valid
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Radiators not heating
Balancing, bleeding and power flushing
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Boiler replacement
Priced alongside the repair, so you can compare
We will not push you at a new boiler
We diagnose the fault, then quote the repair and the replacement and let you compare the two. Under about twelve years old a repair usually wins, and we will say so.
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Send us the fault code
If your boiler is showing a code, photograph it and send it on WhatsApp with the make and model. It often means the engineer arrives with the right part rather than coming back.
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We will not push you at a new boiler
We quote for the repair and the replacement and let you compare the two. Under about twelve years old, a repair usually wins, and we will say so.
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Ask to see the Gas Safe card
Gas work legally requires a registered engineer. Ours carry the card and are glad to show it on the doorstep. You are entitled to ask.
No mystery, no surprise invoice
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Send the make, model and code
Call, use the form, or WhatsApp a photo of the boiler display. The more we know before setting off, the more likely the right part is on the van.
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We agree the price first
The engineer diagnoses the fault and gives you a price before any work starts. If it turns into a bigger job, we stop and tell you.
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Fixed, tested and certificated
The repair is completed and tested, and gas work is certificated where it needs to be.
Plumbers across London
Our engineers work across the London boroughs, from the City and Westminster out to Croydon, Harrow and Enfield. The office is in Fulham.
Croydon, Bromley, Fulham, Wandsworth, Harrow, Balham, Islington, Hackney, Ealing, Clapham, and 41 more areas across London.
Questions
Is my boiler worth repairing?
It depends on age and which part has failed. We quote both options so you can decide on real numbers rather than a sales pitch.
Can you service it at the same time?
Usually yes. Say so when you book and the engineer will come prepared.
Do you install new boilers?
Yes, supply, install and remove the old unit, priced before anything is disconnected.
£25 off your first call-out
Book your boiler repair or annual service today and the discount comes off the first visit.
New customers only. Cannot be combined with other offers.
Prefer to write? Send the booking form and we’ll come back to you with a price.