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02080530369
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02080530369

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ENGINEERS AVAILABLE NOW

Gas Safe Boiler Repair in London

If your boiler has stopped working, lost pressure, is leaking or is showing a fault code, a 0800 Homefix engineer can usually diagnose and fix it the same day. Every repair is carried out by a Gas Safe registered engineer, with no call-out fee and the price agreed before any further work. We repair all major brands across London and the South East, and back our labour for 12 months, with parts covered under the manufacturer’s warranty.

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No call-out fee · Price agreed before we start · 7 days a week including bank holidays

Get a Free Quote

Same day

Repairs available

95%

First-visit fix rate

12 Month

Guarantee

£0

No call-out fee

Gas Safe Registered

Every engineer verified

Public Liability Insurance

Your property protected

NVQ Level 2 & 3

Formally qualified engineers

About Us

How Quickly Can You Repair My Boiler?

Most boiler repairs across London are attended the same day. For a genuine emergency (no heating in winter, a leak or a suspected gas fault), we aim to have a Gas Safe engineer with you within the hour, subject to availability. For non-urgent faults we book at the earliest slot that suits you, usually within a day or two.

If you can smell gas, leave the property, do not touch electrical switches, and call the National Gas Emergency Service on 0800 111 999 before calling us.

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Faults

Common Boiler Faults We Repair

Our engineers carry the parts for the faults that come up most often in London homes, so the majority of repairs are completed on the first visit rather than needing a return trip.

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repair

Do You Repair My Boiler Brand?

We repair all major boiler brands, including Worcester Bosch, Vaillant, Baxi, Ideal, Glow-worm, Potterton, Viessmann and Ferroli, across combi, system and conventional models. Whether your boiler is a modern condensing combi or an older conventional system, our engineers carry the diagnostic equipment and common parts to repair it properly.

If a repair isn’t the sensible option, because the boiler is beyond economic repair or parts are no longer available, we’ll tell you plainly and talk you through a boiler installation rather than charging you for a fix that won’t last.

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Rates

How Much Does a Boiler Repair Cost in London?

Boiler repair is charged from the first hour of labour, agreed and confirmed before the engineer starts, with no call-out fee added. The first hour covers the engineer’s attendance, diagnosis, and the repair itself where it can be completed in that time. If the fault needs additional parts or further labour, you’re given a fixed quote on site and nothing goes ahead until you approve it.

Full pricing, including the hourly rate and any out-of-hours uplift, is published on our rates page.

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PROCESS

How Our Boiler Repair Works

01

Call us with the fault

Tell us what the boiler is doing, including any noises or fault code on the display, and whether you have heating or hot water. This helps the engineer arrive with the right parts.

02

Same-day diagnosis

A Gas Safe engineer attends, usually the same day, and diagnoses the fault properly rather than guessing. You’re told what’s wrong in plain language.

03

Fixed quote before any work

If the repair goes beyond the first hour or needs parts, you get a fixed price on site and approve it before anything proceeds. No work starts without your agreement.

04

Repair and test

The engineer completes the repair, tests the boiler is running safely and correctly, and leaves your property clean and tidy.

05

Guarantee and paperwork

The work is backed for 12 months on labour, and you receive written confirmation before the engineer leaves.

why us

Why Choose 0800 Homefix for Boiler Repair

Every engineer is Gas Safe registered, NVQ qualified, DBS checked, and carries full ID you can inspect before any work begins. Most repairs are completed on the first visit because our vans carry the common parts for the faults we see most across London. There’s no call-out fee, your price is agreed before work starts rather than after the engineer is at your door, and every repair carries a 12-month guarantee on our labour, with parts covered under the manufacturer’s warranty.

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The people behind the service

Meet a Few Of Our Plumbing & Heating Engineers

When you call 0800 Homefix, a real named engineer attends your property. Every person on our London team is Gas Safe registered, NVQ qualified, DBS checked, and carries full ID. Here are some of the engineers who may attend your job.

Neill Young

Leak Detection Specialist

8+ years’ experience · North, East & West London

With over 8 years of experience servicing North, East and West London, I specialise in locating hidden leaks quickly and accurately using non-invasive detection methods. As a fully Gas Safe Registered engineer with NVQ Level 3 qualifications, I focus on delivering reliable, professional solutions that minimise disruption and help customers avoid unnecessary damage and repair costs.

“I regularly find hidden leaks without removing tiles or floors—most customers are surprised how quickly we can locate the issue without damage.”

James Emmerson

Plumbing & Heating Engineer

13+ years’ experience – London

I specialise in boiler breakdowns and central heating systems. I enjoy solving complex faults and making sure systems are running safely and efficiently again, first time.

“In London properties, the most damaging leaks are the ones you can’t see. By the time a damp patch appears on a ceiling, the structural damage can already be significant. Finding it early – without demolition – is what this job is about.”

Oliver White

Senior Plumbing & Heating Engineer

28+ years’ experience – London

With over 28 years in the trade, including more than 20 at British Gas, I focus on diagnosing the root cause of issues quickly, from boiler faults to hidden leaks – so customers get a proper, long-term fix without unnecessary work.

“On an urgent call, the first thing I do is help the homeowner find and shut off the stopcock while I’m on my way. That one step stops the damage spreading and saves serious money. It only takes 10 minutes on the phone.”

What to expect

What every 0800 Homefix plumber brings to your door

Every engineer arrives with a fully stocked van, carries Gas Safe ID you can inspect, and introduces themselves by name before entering your property. They explain what they have found and what the fix involves before starting any work – and they leave your property clean and tidy when they are done.

All engineers carry Gas Safe ID and are DBS checked. You can verify any engineer’s Gas Safe registration independently at gassaferegister.co.uk before work begins.

Coverage

Complete London Coverage

Our plumbers in London operate across all Greater London boroughs and areas within the M25. We have engineers based throughout the city so response times are fast wherever you are.

East London

E, IG, RM postcodes

Barking & Dagenham, Hackney, Havering, Newham, Redbridge, Tower Hamlets, Waltham Forest

West London

W, UB, TW postcodes

Brent, Ealing, Hammersmith & Fulham, Harrow, Hillingdon, Hounslow, Richmond upon Thames

North London

N, NW, EN postcodes

Barnet, Camden, Enfield, Haringey, Islington

South London

SE, SW postcodes

Bromley, Croydon, Greenwich, Lambeth, Lewisham, Merton, Southwark, Sutton, Wandsworth

Central London

WC, EC postcodes

City of London, Kensington & Chelsea, Westminster

South East England & Other

Home Counties / North London Fringe

AL, HP, SG, EN 

St Albans, Hemel Hempstead, Stevenage (London North crossover)

Kent

DA, ME, TN, CT    

Dartford, Medway, Tonbridge, Canterbury

Surrey

GU, KT, RH 

Guildford, Kingston upon Thames, Redhill

Thames Valley

SL, RG, OX

Slough, Reading, Oxford

South Coast

BN, PO, SO

Brighton, Portsmouth, Southampton

Need to check if we cover your specific postcode?

Speak to our team who can confirm engineer availability. If you are in London (within the M25) or the Home Counties, the short answer will likely be yes.

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Customer reviews

What Our Customers Say

Good

4.4 | 77 reviews

Reviews independently verified via Google. We do not edit or filter customer feedback.

FAQ

Frequently Asked Questions About Boiler Repair

Some questions homeowners, landlords and tenants typically ask before booking one of our plumbers in London.

My boiler has stopped working. What should I do first?

Check the basics first: that the boiler has power, the gas supply is on, the pressure gauge reads between roughly 1 and 1.5 bar when cold, and the thermostat is calling for heat. If there’s a fault code on the display, note it down. If none of that resolves it, call us and a Gas Safe engineer can diagnose it, usually the same day. If you smell gas, leave the property and call 0800 111 999 first.

How much does a boiler repair cost?

Repair is charged from the first hour of labour, confirmed before we start, with no call-out fee. Any further parts or labour are quoted on site and agreed before work goes ahead. Full rates are on our rates page.

Does home insurance cover boiler repairs?

It depends on your policy. Standard buildings and contents insurance usually doesn’t cover boiler breakdown, but a boiler or home emergency cover add-on may. We can carry out the repair and provide written documentation of the fault and work done, which you can pass to your insurer.

Do you repair all boiler brands?

Yes. We repair all major brands including Worcester Bosch, Vaillant, Baxi, Ideal, Glow-worm and Potterton, across combi, system and conventional boilers.

Is it worth repairing an old boiler or should I replace it?

If your boiler is over 10 to 15 years old, breaking down repeatedly, or parts are no longer available, replacement is often the more cost-effective choice. Our engineer will give you an honest view on site rather than selling you a repair that won’t hold.

Can you repair a boiler the same day?

In most cases, yes. Same-day repair is standard subject to availability, and for genuine emergencies we aim to attend within the hour.

Explore Services

Related Heating Services

When a repair no longer makes sense, a new A-rated boiler runs more efficiently and cuts running costs.

Professional Boiler Servicing for Reliable Home Heating.

Reliable Gas Safety Certificates by Qualified Gas Engineers.

For a total loss of heating or hot water, especially overnight.

Reviewed by Matthew Fowler, Managing Director and Gas Safe registered engineer. Last reviewed: 23-09-2026

Get in Touch

Boiler Broken Down? We Can Usually Fix It Today.

Gas Safe registered. No call out fee. Same day repairs 7 days a week including evenings and bank holidays. Most faults fixed on the first visit.

Gas Safe Registered | No Call Out Fee | Price Agreed Before We Start

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