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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!

Boiler Servicing London

Boiler Servicing London

Gas Safe registered engineers24/7 call handling • London wide

Annual boiler service London for combi, system and regular boilers. Keep your heating safe, efficient and reliable. We service all major boiler brands and provide a written boiler service record after every visit.

Call 0203 868 6251 | Request a call back



What is a boiler service

A boiler service is a routine check carried out by a qualified engineer to confirm your boiler is operating safely and efficiently. It is preventative maintenance, not a repair. The aim is to catch early signs of wear, check safety-critical components, and keep your boiler running reliably.

Boiler servicing is relevant for homeowners, landlords, and tenants with permission from their landlord. Many boiler manufacturers recommend annual servicing to maintain warranty cover, so check your boiler documentation for specific guidance.

Service vs repair: A service is scheduled maintenance. A repair is fault-driven work to fix a problem. If we find a fault during a service, we explain options and quote before any repair work begins.

Diagnosis and quote first: If we find a fault or a safety issue during the service, we explain options and confirm any additional work and costs before proceeding.


What’s included in our boiler service

Our Gas Safe registered engineers carry out a thorough inspection covering safety, performance and efficiency. A typical service includes:

  • Visual inspection of boiler casing, controls and flue terminal

  • Safety checks on combustion-related components as applicable to your boiler type

  • Flue gas analysis to check combustion efficiency where appropriate

  • Check boiler pressure and expansion vessel function where accessible

  • Inspect seals, gaskets and heat exchanger for signs of wear or leaks

  • Check for corrosion, leaks and water damage around the boiler

  • Test controls, thermostat response and boiler settings

  • Check radiator and heating system performance basics

  • Clean components where needed and accessible

  • Inspect and clean the condensate trap where accessible

  • Check magnetic filter condition if fitted and advise on cleaning

  • Record findings and advise on any recommended next steps

If we find a fault, we explain options and quote before any repair work.


How long does a boiler service take

A standard boiler service typically takes 30 to 60 minutes, depending on boiler type, age and condition. Older boilers or those with access restrictions may take longer. The engineer will confirm expected duration on arrival.

Time is needed to remove casing, carry out visual and functional checks, complete gas analysis where required, and document findings. If faults are found during the service, the engineer will discuss these separately.


When should you service your boiler

Most manufacturers recommend an annual boiler service to maintain safe operation and protect warranty cover. Check your boiler documentation for specific guidance on service intervals.

Best time to book: Late summer or early autumn is ideal, before cold weather increases demand. Booking ahead helps avoid delays during peak winter months when engineers are busiest with breakdowns.

If your boiler has not been serviced in over 12 months, or you have recently moved into a property with no service history, we recommend booking a service soon.

Landlords often book ahead of winter to reduce breakdown risk and keep maintenance records up to date.


Boiler service cost in London

Service costs vary depending on your boiler and location. For an accurate quote, tell us your boiler make, model and postcode.

What affects cost

  • Boiler type: Combi, system or regular boiler

  • Access and location: Ease of access to boiler and flue

  • Last service date: Boilers not serviced for several years may need more attention

  • Condition: If faults are found, repair costs are quoted separately

  • Parts: Any parts needed are quoted before fitting

For the quickest quote: Tell us your boiler make, model and postcode when you call.

Call 0203 868 6251 | Request a call back


Signs you should book a service now

Even if your boiler is working, these signs suggest a service is due:

  • Pressure drops frequently or fluctuates

  • Boiler is noisier than usual (kettling, banging, gurgling)

  • Radiators are slow to warm up or have cold spots

  • Hot water temperature is inconsistent

  • Boiler has not been serviced in over 12 months

  • You have recently moved in and have no service history

  • Yellow or orange flame visible instead of blue

If you have no heating or hot water, or smell gas: This is an emergency, not a service issue. See our emergency boiler repairs page or call us immediately.


Brands we service

We service all major boiler brands across London, including:

WorcesterVaillantIdealBaxiGlow-worm

Other brands include Viessmann, Potterton, Alpha, Ferroli, Vokera and more.

View all boiler brands we service


Areas we cover

We provide boiler servicing across London and surrounding areas. Coverage includes central, north, south, east and west London postcodes.

For boiler service near you, call with your postcode and we will confirm availability.

View our London coverage | Find your area


Boiler servicing FAQs

How much is a boiler service in London?

Costs vary depending on boiler type, location and condition. Call us with your boiler make, model and postcode for an accurate quote.

What does a boiler service include?

A service includes visual inspection, safety checks, flue gas analysis where appropriate, pressure and controls checks, and a written record of findings. If faults are found, we quote separately before any repair work.

Is a boiler service the same as a repair?

No. A service is preventative maintenance to check safety and performance. A repair is fault-driven work to fix a specific problem. If we find a fault during a service, we explain options and quote before proceeding.

How often should a boiler be serviced?

Most manufacturers recommend annual servicing. Check your boiler documentation for specific guidance. Annual servicing helps maintain safe operation and may be required to keep warranty cover valid.

How long does a boiler service take?

A typical service takes 30 to 60 minutes, depending on boiler type, age and condition. Older boilers or those with access restrictions may take longer.

Can you service any boiler brand?

Yes, we service all major boiler brands including Worcester, Vaillant, Ideal, Baxi, Glow-worm, Viessmann, Potterton, Alpha, Ferroli, Vokera and others.

Do you service landlord and rental properties?

Yes. We provide boiler servicing for landlords and can issue service records for compliance files. For gas safety certificates (CP12), see our landlord gas safety certificate page or ask when you call.

Do I need a service if the boiler seems fine?

Yes. Boilers can develop faults that are not obvious until they cause a breakdown or safety issue. Annual servicing helps catch problems early and keeps your boiler running efficiently.


Book a boiler service in London

To book a boiler service or get a quote, call 0203 868 6251 or request a call back.

What we need on the call

  • Your postcode

  • Boiler make and model

  • Boiler type (combi, system or regular)

  • Preferred day and time

  • Any known issues or concerns

Useful links: Book an engineer | Emergency repairs | 24 hour boiler repairs | Boiler installation | Landlord CP12 | Boiler brands

Gas Safe registered engineersWritten service recordsLondon wide


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Testimonials:

T. Green - Hackney, London

We called 24 Hour Boiler Repairs at 11pm expecting to be informed that an engineer wouldn't be available until the morning but we had an engineer at our door by 12:30am. Great Service.
T. Green - Hackney, London


S. Joyce - Bank, London.

24 Hour Boiler Repairs installed our system, serviced it and, if we ever have an emergency, it’s them we will call. Trustworthy, friendly and professional.
S. Joyce - Bank, London.


Paul Dunne - Leytonstone, London

Not only did they fix our boiler, they handled the whole thing with such speed and professionalism.
Paul Dunne - Leytonstone, London




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