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The 24 Hour Boiler Repairs call centre is open right around the clock. Our team of friendly operators are on hand to take your call and dispatch a highly trained engineer to your door. Our commitment to dealing quickly with all boiler emergencies, regardless of when or where they happen, means we have one of the best response times around. So, rest assured, when you get in contact with 24 Hour Boiler Repairs, your problem will be dealt with at speed by a team of highly skilled professionals. If you have an issue with your heating system, get in touch straight away.

Address
24 Hour Boiler Repairs
86-90 Paul Street
London
EC2A 4NE

Phone
0203 868 6251

Email
info@24hourboilerrepairs.co.uk

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Need a Gas Safe engineer in London ASAP? Call us 24 Hours a day!

e.l.m. Leblanc

e.l.m. Leblanc Boiler Repairs London

Gas Safe registered engineers · 24/7 call handling · London wide

Older e.l.m. Leblanc boiler? We can assess whether a safe repair is sensible or whether replacement is better value.

  • Experienced e.l.m. Leblanc Boiler Repairs specialists
  • Available 24 hours a day, 7 days a week
  • Insurance approved
  • All parts guaranteed for a year
  • Fully Gas Safe trained engineers

Lines open now

0203 868 6251

Have your e.l.m. Leblanc model and symptoms ready.

★★★★★4.6/5 on Google

We cover e.l.m. Leblanc boiler repairs in London, including lockouts, no heating, no hot water, low pressure and ignition faults. Some older e.l.m. Leblanc boilers can be repaired, but parts availability can vary by model and age. We will advise the safest, most cost-effective next step after inspection.

Safety First

Smell gas? Turn off the gas supply at the meter if it is safe to do so. Open windows. Leave the property. Call the National Gas Emergency Service on 0800 111 999. Do not use switches, and do not use naked flames.

CO alarm sounding? Stop using the boiler. Open doors and windows. Leave the property. Call the National Gas Emergency Service on 0800 111 999. If anyone is drowsy, breathless or has a headache, call 999 as well. Do not re-enter until you are told it is safe.

Boiler leaking heavily? Turn off the boiler at the controls. If safe, turn off the water supply. Call an engineer.

★★★★★Excellent from start to finish.George · Google review★★★★★Great guy on time true professional resolve the issue same dayDavid Brazier · Google review★★★★★Clear communication from the start and no surprises with pricing.Nishanth Thachema · Google review

Quick Checks Before You Call

Before calling an engineer, these safe checks may resolve simple issues with your e.l.m. Leblanc boiler.

Check the gas supply

Is gas working at other appliances in your home? If not, check your meter and any prepayment credit.

Check the pressure gauge

Pressure should read around 1.0 to 1.5 bar when cold. If low, you may need to top up using the filling loop.

Check the thermostat and timer

Is the room thermostat set above current temperature? Is the heating scheduled to be on?

Try a single reset

Locate the reset button on your e.l.m. Leblanc boiler. Press once and wait. If the fault returns, do not keep resetting. Call an engineer.

Check the condensate pipe

In cold weather, the external condensate pipe can freeze. If frozen, pour warm water over it gently.

Gas Safe registered boiler engineers

Fully Gas Safe trained engineers

Every gas repair is carried out by a Gas Safe registered engineer. You are told what needs doing and what it costs before anything starts.

★★★★★4.6/5 on Google

Common e.l.m. Leblanc Boiler Faults

e.l.m. Leblanc boilers use fault codes similar to other Bosch Group products. Common symptoms include:

Ignition lockout (EA, ER codes)

Boiler fails to light or flame is lost. May be gas valve, electrode, or ignition transformer fault. Try one reset. If it returns, call an engineer.

Low pressure warning

Pressure has dropped below safe level. Top up via filling loop if confident. If pressure drops repeatedly, there may be a leak.

Overheat lockout

Boiler overheated and shut down. May be circulation fault, pump failure, or blocked heat exchanger. Do not keep resetting. Call an engineer.

Flashing red light

General fault indicator on older models. Note the pattern and call an engineer for diagnosis.

No hot water / heating works

Often a diverter valve fault on combi models. The valve switches water between heating and taps.

Note: e.l.m. Leblanc boilers vary by model and age. Tell us the model and what you can see and we will advise the safest next step.

Not sure which fault you have?

Call with your model and what the boiler is doing. We will tell you what is likely involved before anyone attends.

0203 868 6251

e.l.m. Leblanc Models We Cover

Our engineers work on e.l.m. Leblanc gas boilers including:

e.l.m. Leblanc boiler repairs London We repair every e.l.m. Leblanc model Current ranges and older units, subject to parts availability
Megalis range Megalis, Megalis Condens
Egalis range Egalis, Egalis Condens
Acleis range Acleis, Acleis Condens
Ondea range Ondea (water heaters)
Older models Earlier e.l.m. Leblanc units

As part of the Bosch Group, some e.l.m. Leblanc parts may be cross-compatible with Worcester or Junkers components. However, older model parts may be harder to source.

Repair or Replace

e.l.m. Leblanc is a French boiler manufacturer, now part of the Bosch Group alongside Worcester Bosch. e.l.m. Leblanc boilers were sold in the UK primarily during the 1990s and 2000s. Many units still in service are now 15 to 25 years old. Whether to repair or replace depends on the fault, the model, and parts availability.

When repair may be sensible

  • Minor component failure (ignition electrode, pressure sensor, diverter valve)
  • Parts are available through Bosch or pattern suppliers
  • First breakdown after years of reliable service

When replacement is often better value

  • Repeat breakdowns or multiple faults
  • Major component failure (heat exchanger, PCB, gas valve)
  • Parts are obsolete or require long lead times
  • Boiler is over 20 years old
  • Repair cost approaches a significant share of a replacement quote

We will advise honestly after inspection. There is no pressure to replace if a repair is practical.

Replacement Options

If your e.l.m. Leblanc boiler is 15 to 20 years old or parts are difficult to source, a replacement survey is often the fastest route to certainty. See boiler installation London.

Combi vs system boiler Most e.l.m. Leblanc installations were combis. A like-for-like combi swap is usually straightforward. If you have a hot water cylinder, a system boiler may be appropriate.
Survey and sizing We survey your property to recommend the right output, position, and controls. No high-pressure sales.
Modern efficiency Replacing an older e.l.m. Leblanc with a new condensing boiler could reduce your gas bills by 20 to 30 percent.
System protection We recommend a powerflush when fitting a new boiler to remove sludge and protect the new unit.

Annual Servicing

If your e.l.m. Leblanc boiler is still running well, annual servicing helps catch problems early. Book a service.

Landlords and Letting Agents

We provide boiler repairs and gas safety certification for landlords across London. See Landlord gas safety certificate (CP12).

London based boiler repair engineers

e.l.m. Leblanc Repairs Across London

We cover e.l.m. Leblanc boiler repairs and replacements across all London boroughs. See our full coverage area.

Have your postcode and the model ready and we will confirm the quickest appointment slot.

Related Services

Emergency boiler repairs Breakdowns, lockouts and leaks Boiler servicing London Annual service and safety checks Boiler installation London Replacements and new fitting Power flush London Cold radiators and system sludge Landlord gas safety certificate (CP12) Certification across London London areas we cover Book an engineer in your borough

What customers say

Verified Google reviews. 4.6 out of 5.

★★★★★

Perfect service and professional engineer!

Halil AtarkanGoogle review
★★★★★

Fix the boiler same day great job life saver

B M Sidratul MuntahaGoogle review
★★★★★

Used this company after being recommended and I am glad I did. The engineer was punctual, honest about costs and carried out the work to a very high standard. Felt like a trustworthy service.

Siva YelakarajulaGoogle review

Speak to Our Team

Lines are open 24 hours. Tell us the model and symptoms. We will advise whether repair or replacement is the better option and, if needed, send an engineer.

Call 0203 868 6251

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Gas Safe registered · 24/7 call handling · Quote before work
24 Hour Boiler Repairs, 86-90 Paul Street, London EC2A 4NE
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Google reviews

★★★★★4.6/5 on Google
★★★★★

Good value for money & was able to sort out my boiler quickly by ordering next day delivery for broken parts. Friendly, punctual service and laid out all the costs beforehand which was helpful. Would recommend.

Emma CourtneyGoogle review
★★★★★

Really impressed with the boiler repair service. Clear communication from the start and no surprises with pricing. The engineer was friendly, knowledgeable and got everything sorted efficiently.

Nishanth ThachemaGoogle review
★★★★★

Booked them in for a power flush after ongoing heating issues. The engineer was very thorough and explained what was being done at each stage. We noticed a huge difference in how quickly the radiators now heat up.

S ThanuGoogle review

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